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Journal articles on the topic 'Chameleon calyptratus'

Author: Grafiati

Published: 4 June 2025

Last updated: 23 June 2025

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1

Gardenier, Nicole. "Severe Case of Metabolic Bone Disease in Yemen Chameleon, Chamaeleo calyptratus (Sauria: Chamaeleonidae)." Archaius 2, no. 1 (2025): 3. https://doi.org/10.5281/zenodo.14904500.

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<strong>Severe Case of Metabolic Bone Disease in Yemen Chameleon, <em>Chamaeleo calyptratus</em></strong><strong><em> </em>(Sauria: Chamaeleonidae)</strong> A severe case of metabolic bone disease, MBD, is reported in captive <em>Chamaeleo calyptratus, </em>treatment and captive conditions for successful recovery are discussed. <strong>Key words: </strong>Chameleons, metabolic bone disease, MBD, captive care, treatment, <em>Chamaeleo calyptratus</em>

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2

Tishakova, Katerina V., Dmitry Yu Prokopov, Guzel I. Davletshina, et al. "Identification of Iguania Ancestral Syntenic Blocks and Putative Sex Chromosomes in the Veiled Chameleon (Chamaeleo calyptratus, Chamaeleonidae, Iguania)." International Journal of Molecular Sciences 23, no. 24 (2022): 15838. http://dx.doi.org/10.3390/ijms232415838.

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The veiled chameleon (Chamaeleo calyptratus) is a typical member of the family Chamaeleonidae and a promising object for comparative cytogenetics and genomics. The karyotype of C. calyptratus differs from the putative ancestral chameleon karyotype (2n = 36) due to a smaller chromosome number (2n = 24) resulting from multiple chromosome fusions. The homomorphic sex chromosomes of an XX/XY system were described recently using male-specific RADseq markers. However, the chromosomal pair carrying these markers was not identified. Here we obtained chromosome-specific DNA libraries of C. calyptratus by chromosome flow sorting that were assigned by FISH and sequenced. Sequence comparison with three squamate reptiles reference genomes revealed the ancestral syntenic regions in the C. calyptratus chromosomes. We demonstrated that reducing the chromosome number in the C. calyptratus karyotype occurred through two fusions between microchromosomes and four fusions between micro-and macrochromosomes. PCR-assisted mapping of a previously described Y-specific marker indicates that chromosome 5 may be the sex chromosome pair. One of the chromosome 5 conserved synteny blocks shares homology with the ancestral pleurodont X chromosome, assuming parallelism in the evolution of sex chromosomes from two basal Iguania clades (pleurodonts and acrodonts). The comparative chromosome map produced here can serve as the foundation for future genome assembly of chameleons and vertebrate-wide comparative genomic studies.

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3

Hoon-Hanks, Laura L., Anke C. Stöhr, Amanda J. Anderson, et al. "Serpentovirus (Nidovirus) and Orthoreovirus Coinfection in Captive Veiled Chameleons (Chamaeleo calyptratus) with Respiratory Disease." Viruses 12, no. 11 (2020): 1329. http://dx.doi.org/10.3390/v12111329.

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Serpentoviruses are an emerging group of nidoviruses known to cause respiratory disease in snakes and have been associated with disease in other non-avian reptile species (lizards and turtles). This study describes multiple episodes of respiratory disease-associated mortalities in a collection of juvenile veiled chameleons (Chamaeleo calyptratus). Histopathologic lesions included rhinitis and interstitial pneumonia with epithelial proliferation and abundant mucus. Metagenomic sequencing detected coinfection with two novel serpentoviruses and a novel orthoreovirus. Veiled chameleon serpentoviruses are most closely related to serpentoviruses identified in snakes, lizards, and turtles (approximately 40–50% nucleotide and amino acid identity of ORF1b). Veiled chameleon orthoreovirus is most closely related to reptilian orthoreoviruses identified in snakes (approximately 80–90% nucleotide and amino acid identity of the RNA-dependent RNA polymerase). A high prevalence of serpentovirus infection (>80%) was found in clinically healthy subadult and adult veiled chameleons, suggesting the potential for chronic subclinical carriers. Juvenile veiled chameleons typically exhibited a more rapid progression compared to subadults and adults, indicating a possible age association with morbidity and mortality. This is the first description of a serpentovirus infection in any chameleon species. A causal relationship between serpentovirus infection and respiratory disease in chameleons is suspected. The significance of orthoreovirus coinfection remains unknown.

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4

Kushch, Mykola, Serhii Skachko, Iryna Fesenko, Olga Miroshnikova, and Olena Byrka. "Features of topography and macroscopic structure of the digestive organs of the Yemeni chameleon (Chamaeleo calyptratus)." Ukrainian journal of veterinary sciences 15, no. 2 (2024): 138–56. http://dx.doi.org/10.31548/veterinary2.2024.138.

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The relevance of this study is conditioned by the lack of detailed information on the structure and topography of the digestive organs of the Yemeni chameleon (Chamaeleo calyptratus). The purpose of this study was to find out the specific features of changes in body weight, topography, and structure of the digestive organs of the Yemeni chameleon, to determine their morphometric parameters in animals from 1 day to 1 year of age. The research material included the tongue, oesophagus, stomach, intestines, liver, and pancreas of chameleons of different sexes of 9 age groups. The data obtained were processed by one-factor analysis of variance (ANOVA). According to the topography, macroscopic structure and surface of the mucous membrane, there are three intestines in the small intestine: duodenum, jejunum, and ileum, and two intestines in the large intestine: the colon with a diverticulum and the rectum, which passes into the cloaca. A feature of the serous membrane of the chameleon intestine is that it is coloured black by melanin. From 1 day to 1 year of age, the body weight of chameleons increased 185.9 times, the snout-vent length (SVL) increased 6.7 times, the length of the digestive tract increased 3.8 times, and the ratio of the length of the digestive tract to SVL decreased from 3.2 to 1.8 times. The most intensive increase in body weight and SVL occurred during the second and third months of life. The relative length of the small intestine in chameleons of different age groups was 65.1- 81.6%, with the longest part being the jejunum. The increase in the morphometric parameters of the stomach, intestines, liver, and pancreas was asynchronous. The most pronounced changes in their relative weight were determined in animals of 2-3 months of age. The obtained materials supplement and clarify the information on the topography and structure of the digestive organs of the Yemeni chameleon, and therefore they will be useful in X-ray and ultrasound examination during veterinary manipulations

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5

Melero, Adri, Judit s, Yvonne Espada, Rosa Novellas, Mario Encinoso, and Jaume Martorell. "Computed tomography of the coelomic cavity in healthy veiled chameleons (Chamaeleo calyptratus) and panther chameleons (Furcifer pardalis)." Open Veterinary Journal 13, no. 9 (2023): 1071. http://dx.doi.org/10.5455/ovj.2023.v13.i9.2.

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Background: Veiled chameleon (Chamaeleo calyptratus) and panther chameleon (Furcifer pardalis) are two of the most popular pet chameleons, and consequently, these species are frequently evaluated in veterinary practices. According to our review of the literature normal computed tomography (CT) anatomy of these lizards has not been previously described. Aim: The purposes of this prospective study were to describe the normal CT anatomy of the coelomic organs in healthy patients and to provide normal reference values in these species. Methods: Seventeen clinically healthy veiled chameleons and fifteen clinically healthy panther chameleons were included. All CT studies were performed with the chameleons under light anaesthesia and positioned in sternal recumbency. Studies were performed with a 16-slice helical CT scanner with a slice thickness of 0.625 mm. The authors recorded qualitative and quantitative CT characteristics of the coelomic structures. Macroscopic cross-sectional anatomy was performed for comparison of the CT findings. Results: Lungs, liver -including caudal vena cava, hepatic vessels, and gallbladder-, oesophagus, stomach, intestines, gonads, fat bodies, kidneys, and urinary bladder could be visualized with CT. The spleen, pancreas, and adrenal glands could not be identified. Conclusion: This study provides a guide of the normal cross-sectional and computed tomographic anatomy of the coelomic cavity in veiled and panther chameleons. Our results could be used as a reference for future research studies or for comparison of clinically ill patients.

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6

Necas, Petr, and Farrah Harris. "Obesity in Chamaeleo calyptratus DUMÉRIL & DUMÉRIL, 1851 (Reptilia: Chamaeleonidae) successfully treated with a diet. A Practice Report." Archaius 1, no. 2 (2020): 1–5. https://doi.org/10.5281/zenodo.3763431.

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Nečas, P. & F. Harris (2020) Obesity in Chamaeleo calyptratus DUMÉRIL & DUMÉRIL, 1851 (Reptilia: Chamaeleonidae) successfully treated with a diet. A Practice Report. – Archaius 1 (2): 1-5

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7

Schmid-Brunclik, Nicole, Simova-Curd Stefka, Kaufmann-Bart Madeleine, Gassmann Max, and Hatt Jean-Michel. "Liposarcoma in a Veiled Chameleon, Chamaeleo calyptratus." Journal of Herpetological Medicine and Surgery 17, no. 4 (2007): 132–35. http://dx.doi.org/10.5818/1529-9651.17.4.132.

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8

Bronson, Ellen, Marcia Pereira, Carlos Sanchez, and Suzan Murray. "Iridophoroma in a Veiled Chameleon, Chamaeleo calyptratus." Journal of Herpetological Medicine and Surgery 16, no. 2 (2006): 58–60. http://dx.doi.org/10.5818/1529-9651.16.3.58.

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9

Buchtová, Marcela, Oldřich Zahradníček, Simona Balková, and Abigail S. Tucker. "Odontogenesis in the Veiled Chameleon (Chamaeleo calyptratus)." Archives of Oral Biology 58, no. 2 (2013): 118–33. http://dx.doi.org/10.1016/j.archoralbio.2012.10.019.

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10

Necas, Petr. "Archaius." Archaius, The Journal of Chameleonology and Chameleonoculture 1, no. 1 (2020): 30. https://doi.org/10.5281/zenodo.3751128.

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Archaius, the Journal of Chameleonology and Chameleonoculture vol. 1, issue 1 2020 full electronic journal including cover page  Content: Nečas, P. (2020) Tongue Punching, an unknown secondary antipredatory function of the tongue-shooting in chameleons (Reptilia: Chamaeleonidae). – Archaius 1 (1): 1 – 3 Nečas, P. (2020) Chameleodactyly: New term to describe the unique arrangement of digits in chameleons (Reptilia: Chamaeleonidae). – Archaius 1 (1): 4 – 5eng Nečas, P. (2020) Panther Chameleon Challenges in Chameleonoculture: an integrative approach: wild – trade – captive propagation. – Archaius 1 (1): 6– 11 Nečas, P. & P. Dvorak (2020) A brief review of captive history of Chamaeleo calyptratus DUMÉRIL & DUMÉRIL, 1851 (Sauria: Chamaeleonidae), with notes on degeneration of the captive and feral populations, including inbreeding effects, and the first report on a two–tailed chameleon in history. – Archaius 1 (1): 12 – 24 Nečas, P. (2020) The Language of Chameleons: how the animals, which cannot talk and do not hear, communicate. Silhouette. – Archaius 1 (1): 25 – 28 Nečas, P. (2020) The Language of Chameleons: how the animals, which cannot talk and do not hear, communicate. Silhouette. – Archaius 1 (1): 29 – 30  

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11

Tecilla, M., M. Gambini, C. Pigoli, et al. "Oral Mycosis in a Veiled Chameleon (Chamaeleo calyptratus)." Journal of Comparative Pathology 174 (January 2020): 164. http://dx.doi.org/10.1016/j.jcpa.2019.10.079.

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12

Necas, Petr, and Peter Dvorak. "Nečas, P. & P. Dvorak (2020) A brief review of captive history of Chamaeleo calyptratus DUMÉRIL & DUMÉRIL, 1851 (Sauria: Chamaeleonidae), with notes on degeneration of the captive and feral populations, including inbreeding effects, and the first report on a two–tailed chameleon in history. – Archaius 1 (1): 12 – 24." Archaius 1, no. 1 (2020): 12–24. https://doi.org/10.5281/zenodo.3751205.

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Nečas, P. & P. Dvorak (2020) A brief review of captive history of Chamaeleo calyptratus DUMÉRIL & DUMÉRIL, 1851 (Sauria: Chamaeleonidae), with notes on degeneration of the captive and feral populations, including inbreeding effects, and the first report on a two–tailed chameleon in history. – Archaius 1 (1): 12 – 24

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13

Oliveri, M., CF Agudelo, E. Cermakova, et al. "Congestive heart failure in a veiled chameleon (Chamaeleo calyptratus): A case report." Veterinární Medicína 67, No. 5 (2022): 263–69. http://dx.doi.org/10.17221/67/2021-vetmed.

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A two-year-old male veiled chameleon (Chamaeleo calyptratus) was referred for a gular oedema and bilateral blepharoedema. The echocardiography revealed a ventricular hypertrophy, pericardial effusion, and valvular regurgitation of the right atrioventricular valve. Treatment with hydrochlorothiazide, enalapril, and carvedilol was commenced. Within 3 weeks of treatment, the valvular regurgitation was noticeably decreased. In the 4<sup>th</sup> week of treatment, the echocardiography revealed a reduction in the myocardium hypertrophy. After an additional month of home treatment, the patient was presented with anorexia and decreased activity. Despite the supportive care, the patient died. The histopathology revealed mild to moderate fibrosis of the epicardium. Moderate to severe fibrosis, degeneration of the myofibrils, fatty atrophy, interstitial oedema and mild calcification was seen in the atria. The tunica intima, media and adventitia of the major cardiac vessels were moderately fibrotic, swollen and interfused by myxoedema. The kidney histopathology revealed moderate sclerosis and atrophy of the glomeruli, vacuolation of the tubular epithelium, fibrosis, and infiltration of the leucocytes in the interstitium. The therapeutic protocol with hydrochlorothiazide, ACE inhibitor enalapril and β-blocker carvedilol reduced the myocardium hypertrophy and the valvular regurgitation; however, the prolonged use of diuretics jeopardized the renal function in our patient. Frequent blood analyses are necessary using diuretics in reptile patients.

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14

Ligon, Russell A., and Kevin J. McGraw. "Social costs enforce honesty of a dynamic signal of motivation." Proceedings of the Royal Society B: Biological Sciences 283, no. 1841 (2016): 20161873. http://dx.doi.org/10.1098/rspb.2016.1873.

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Understanding the processes that promote signal reliability may provide important insights into the evolution of diverse signalling strategies among species. The signals that animals use to communicate must comprise mechanisms that prohibit or punish dishonesty, and social costs of dishonesty have been demonstrated for several fixed morphological signals (e.g. colour badges of birds and wasps). The costs maintaining the honesty of dynamic signals, which are more flexible and potentially cheatable, are unknown. Using an experimental manipulation of the dynamic visual signals used by male veiled chameleons ( Chamaeleo calyptratus ) during aggressive interactions, we tested the idea that the honesty of rapid colour change signals is maintained by social costs. Our results reveal that social costs are an important mechanism maintaining the honesty of these dynamic colour signals—‘dishonest’ chameleons whose experimentally manipulated coloration was incongruent with their contest behaviour received more physical aggression than ‘honest’ individuals. This is the first demonstration, to the best our knowledge, that the honesty of a dynamic signal of motivation—physiological colour change—can be maintained by the social costliness of dishonesty. Behavioural responses of signal receivers, irrespective of any specific detection mechanisms, therefore prevent chameleon cheaters from prospering.

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15

Andrews, Robin M. "Incubation Temperature and Sex Ratio of the Veiled Chameleon (Chamaeleo calyptratus)." Journal of Herpetology 39, no. 3 (2005): 515–18. http://dx.doi.org/10.1670/33-05n.1.

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16

Herrel, Anthony, Chrystal L. Redding, J. Jay Meyers, and Kiisa C. Nishikawa. "The scaling of tongue projection in the veiled chameleon, Chamaeleo calyptratus." Zoology 117, no. 4 (2014): 227–36. http://dx.doi.org/10.1016/j.zool.2014.01.001.

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17

Gambini, M., E. Bardi, S. Romussi, et al. "Ovotesticular Disorder of Sex Determination in A Veiled Chameleon (Chamaeleo calyptratus)." Journal of Comparative Pathology 174 (January 2020): 164. http://dx.doi.org/10.1016/j.jcpa.2019.10.078.

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18

Diaz, Raul E., Christopher V. Anderson, Diana P. Baumann, et al. "Captive Care, Raising, and Breeding of the Veiled Chameleon (Chamaeleo calyptratus)." Cold Spring Harbor Protocols 2015, no. 10 (2015): pdb.prot087718. http://dx.doi.org/10.1101/pdb.prot087718.

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19

Solanes, Ferran, Koen Chiers, Marja J. L. Kik, and Tom Hellebuyck. "Gross, Histologic and Immunohistochemical Characteristics of Keratoacanthomas in Lizards." Animals 13, no. 3 (2023): 398. http://dx.doi.org/10.3390/ani13030398.

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The present study describes the clinical behavior as well as the histopathologic and immunohistochemical characteristics of keratoacanthomas (Kas) in three different saurian species. While Kas presented as two dermal lesions in a bearded dragon (Pogona vitticeps), multicentric Kas were observed in three panther chameleons (Furcifer pardalis) and a veiled chameleon (Chamaeleo calyptratus). Macroscopically, Kas presented as dome-shaped skin tumors with a centralized keratinous pearl and a diameter ranging from 0.1–1.5 cm. In all lizards, Kas were predominantly located at the dorsolateral body wall, and KA of the eyelid was additionally observed in three out of four chameleons. Histologically, KAs presented as relatively well-defined, circumscribed epidermal proliferations that consisted of a crateriform lesion containing a central keratinous pearl with minimally infiltrating borders. In all KAs, a consistent immunohistochemical pattern was observed, with the expression of cyclooxygenase-2, E-cadherin, and pan-cytokeratin. A follow-up period of one to two years was established in all lizards. While no recurrence was observed in the panther chameleons, recurrence of a single keratoacanthoma was observed in the bearded dragon after one year, and in the veiled chameleon, multicentric keratoacanthomas reappeared during a follow-up period of two years. We describe KA as a previously unrecognized neoplastic entity in lizards that constitutes a low-grade, non-invasive but rapidly growing skin tumor that may show a multicentric appearance, especially in chameleons. As previously postulated for dermal squamous cell carcinomas (SCC), artificial ultraviolet lighting may play an important role in the oncogenesis of KAs in lizards. Although dermal SCCs in lizards show similar predilection sites and gross pathologic features, our results suggest that KA should be considered as a histologic variant of SCC that represents a rather benign squamous proliferation in comparison to conventional SCCs. Early diagnosis of KA and reliable discrimination from SCCs are essential for the prognosis of this neoplastic entity in lizards.

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20

Cole, Gretchen A., Deepa B. Rao, Howard Steinberg, and Kurt K. Sladky. "Suspected Vitamin E and Selenium Deficiency in a Veiled Chameleon, Chamaeleo calyptratus." Journal of Herpetological Medicine and Surgery 18, no. 3 (2008): 113–16. http://dx.doi.org/10.5818/1529-9651.18.3-4.113.

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21

Andrews, Robin M. "Effects of temperature on embryonic development of the veiled chameleon, Chamaeleo calyptratus." Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology 148, no. 3 (2007): 698–706. http://dx.doi.org/10.1016/j.cbpa.2007.08.026.

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22

Hong, Sunghyun S., Sungryong Kim, Dongwoo Chang, and Ki-Jeong Na. "Stomatitis in a Veiled Chameleon (Chameleo calyptratus) with Fusarium solani and Pseudomonas spp." Journal of Veterinary Clinics 41, no. 4 (2024): 258–61. http://dx.doi.org/10.17555/jvc.2024.41.4.258.

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23

Rowland, M. N. "Fibrosing myopathy of the temporal muscles causing lockjaw in a veiled chameleon (Chamaeleo calyptratus)." Veterinary Record 169, no. 20 (2011): 527. http://dx.doi.org/10.1136/vr.d5048.

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24

Abou-Madi, Noha, and Thomas J. Kern. "Squamous cell carcinoma associated with a periorbital mass in a veiled chameleon (Chamaeleo calyptratus)." Veterinary Ophthalmology 5, no. 3 (2002): 217–20. http://dx.doi.org/10.1046/j.1463-5224.2002.00244.x.

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25

Andrews, Robin M. "Effects of incubation temperature on growth and performance of the veiled chameleon (Chamaeleo calyptratus)." Journal of Experimental Zoology Part A: Ecological Genetics and Physiology 309A, no. 8 (2008): 435–46. http://dx.doi.org/10.1002/jez.470.

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26

Andrews, Robin M., and Susan Donoghue. "Effects of temperature and moisture on embryonic diapause of the veiled chameleon (Chamaeleo calyptratus)." Journal of Experimental Zoology 301A, no. 8 (2004): 629–35. http://dx.doi.org/10.1002/jez.a.56.

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27

Martinson, Shannon A., Chantal Skjonsberg, Catherine Anne Muckle, and Jonathan Spears. "Acute Septicemia in a Hermaphrodite Veiled Chameleon (Chamaeleo calyptratus) Infected with Mycobacterium chelonae Chemovar niacinogenes." Journal of Herpetological Medicine and Surgery 29, no. 1-2 (2019): 21. http://dx.doi.org/10.5818/18-04-150.1.

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28

Lewis, Nicole, Shannon Martinson, Dorota Wadowska, and Marion Desmarchelier. "Malignant Mixed Chromatophoroma with Cutaneous, Pulmonary, and Testicular Metastases in a Veiled Chameleon (Chamaeleo calyptratus)." Journal of Herpetological Medicine and Surgery 25, no. 1-2 (2015): 16. http://dx.doi.org/10.5818/1529-9651-25.1.16.

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29

Bellintani-Guardia, Breno, and Matthias Ott. "Displaced retinal ganglion cells project to the accessory optic system in the chameleon (Chamaeleo calyptratus)." Experimental Brain Research 145, no. 1 (2002): 56–63. http://dx.doi.org/10.1007/s00221-002-1091-z.

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30

Sloboda, Michal, and David Modry. "New species of Choleoeimeria (Apicomplexa: Eimeriidae) from the veiled chameleon, Chamaeleo calyptratus (Sauria: Chamaeleonidae), with taxonomic revision of eimerian coccidia from chameleons." Folia Parasitologica 53, no. 2 (2006): 91–97. http://dx.doi.org/10.14411/fp.2006.012.

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31

Zari, Talal A. "Effects of body mass and temperature on standard metabolic rate of the desert chameleon Chamaeleo calyptratus." Journal of Arid Environments 24, no. 1 (1993): 75–80. http://dx.doi.org/10.1006/jare.1993.1006.

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32

Gillette, Christopher R., and Kenneth L. Krysko. "New County Record For The Veiled Chameleon, Chamaeleo calyptratus Duméril and Bibron 1851 (Sauria: Chamaeleonidae), in Florida." Reptiles & Amphibians 19, no. 2 (2012): 130–31. http://dx.doi.org/10.17161/randa.v19i2.13893.

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33

Nechaeva, Marina V., Irina G. Makarenko, Evgenii B. Tsitrin, and Nadezhda P. Zhdanova. "Physiological and morphological characteristics of the rhythmic contractions of the amnion in veiled chameleon (Chamaeleo calyptratus) embryogenesis." Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology 140, no. 1 (2005): 19–28. http://dx.doi.org/10.1016/j.cbpb.2004.09.024.

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34

McAllister, Chris T., and Steve J. Upton. "Second Report of Isospora jaracimrmani (Apicomplexa: Eimeriidae) from the Yemen Chameleon, Chamaeleo calyptratus (Sauria: Chamaeleonidae), in Texas, U.S.A." Comparative Parasitology 79, no. 1 (2012): 153–54. http://dx.doi.org/10.1654/4524.1.

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35

Metzger, Edward, and Margaret Ginoza. "New distributional records for the Veiled Chameleon (Chamaeleo calyptratus Duméril and Bibron 1851) in Palm Beach County, Florida." Reptiles & Amphibians 28, no. 3 (2021): 558–59. http://dx.doi.org/10.17161/randa.v28i3.15883.

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36

Pinto, Brendan J., Daren C. Card, Todd A. Castoe, et al. "The transcriptome of the veiled chameleon ( Chamaeleo calyptratus ): A resource for studying the evolution and development of vertebrates." Developmental Dynamics 248, no. 8 (2019): 702–8. http://dx.doi.org/10.1002/dvdy.20.

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37

Al-Doaiss, Amin A., Mohammed A. Alshehri, Ali A. Shati, et al. "Histomorphological, Histochemical and Ultrastructural Studies on the Healthy Liver of Yemen Veiled Chameleon (Chamaeleo calyptratus) in Southern Saudi Arabia." International Journal of Morphology 41, no. 5 (2023): 1513–26. http://dx.doi.org/10.4067/s0717-95022023000501513.

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38

Edwards, Jake R., Michael R. Rochford, Frank J. Mazzotti, and Kenneth L. Krysko. "New county record for the Veiled Chameleon (Chamaeleo calyptratus Duméril and Bibron 1851), in Broward County, Florida, with notes on intentional introductions of chameleons in southern Florida." Reptiles & Amphibians 21, no. 2 (2014): 83–85. http://dx.doi.org/10.17161/randa.v21i2.13997.

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39

Al-shehri, Mohammed Ali, and Amin Abdullah Al-Doaiss. "A Morphological, Histological and Histochemical Study of the Sexual Segment of the Kidney of the Male Chamaeleo calyptratus (Veiled Chameleon)." International Journal of Morphology 39, no. 4 (2021): 1200–1211. http://dx.doi.org/10.4067/s0717-95022021000401200.

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Akhtar, Saeed, Adnan A. Khan, Hussain A. Albuhayzah, and Turki M. Almubrad. "Cornea and its adaptation to environment and accommodation function in veiled chameleon (Chamaeleo calyptratus ): ultrastructure and 3D transmission electron tomography." Microscopy Research and Technique 80, no. 6 (2017): 578–89. http://dx.doi.org/10.1002/jemt.22833.

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Diaz, Raul E., Natalia A. Shylo, Daniela Roellig, Marianne Bronner, and Paul A. Trainor. "Filling in the phylogenetic gaps: Induction, migration, and differentiation of neural crest cells in a squamate reptile, the veiled chameleon (Chamaeleo calyptratus)." Developmental Dynamics 248, no. 8 (2019): 709–27. http://dx.doi.org/10.1002/dvdy.38.

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Tong, Lydia J., Whitney Ong, Frances Hulst, Gabrielle Tobias, Kimberly Vinette Herrin, and Larry Vogelnest. "CLINICAL, DIAGNOSTIC, AND PATHOLOGICAL FEATURES OF 2 CASES OF METASTATIC IRIDOPHOROMA IN A VEILED CHAMELEON (CHAMAELEO CALYPTRATUS) AND A RED-BARRED DRAGON (CTENOPHORUS VADNAPPA)." Journal of Exotic Pet Medicine 27, no. 4 (2018): 53–60. http://dx.doi.org/10.1053/j.jepm.2017.11.004.

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EKAWASTI, Fitrine, Kazuya KITAGAWA, Hiroshi DOMAE, et al. "Phylogenetic characterization of Isospora jaracimrmani oocysts from a veiled chameleon (family Chamaeleonidae; Chamaeleo calyptratus) reared at a zoo in Ishikawa, Japan." Journal of Veterinary Medical Science 83, no. 8 (2021): 1240–43. http://dx.doi.org/10.1292/jvms.21-0152.

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Necas, Petr. "Nečas, P. (2020) Tongue Punching, an unknown secondary antipredatory function of the tongue-shooting in chameleons (Reptilia: Chamaeleonidae). – Archaius 1 (1): 1 – 3." Archaius 1, no. 1 (2020): 1–3. https://doi.org/10.5281/zenodo.3751165.

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Obady, Yaser H. A., and Ola A. A. Alareeqi. "ERYTHROCYTES COUNTS AND MORPHOLOGY OF ACANTOCERCUS ADRAMITANUS AND CHAMELEO CALYPTRATUS CALYPTRATUS FROM YEMEN." Electronic Journal of University of Aden for Basic and Applied Sciences 1, no. 3 (2020): 167–74. http://dx.doi.org/10.47372/ejua-ba.2020.3.40.

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Abstract:

The aim of this study was to determine the erythrocyte and nucleus morphology of Acantocercus adramitanus and Chameleo calyptratus calyptratus from Yemen by means of blood smears stained with Giemsa stain. The longest and largest erythrocytes and their nucleus were observed in the smears of C. c. calyptratus, while the narrowest and smallest in A. adramitanus. In terms of the studied species, the nucleus and erythrocyte sizes were found to be correlated. No significant difference between two species lizard’s in erythrocyte count was determined. The relationship between the raw erythrocyte measurements and erythrocyte length was determined as positive correlation.

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Ballen, Cissy J., Richard Shine, and Mats M. Olsson. "Developmental plasticity in an unusual animal: the effects of incubation temperature on behavior in chameleons." Behaviour 152, no. 10 (2015): 1307–24. http://dx.doi.org/10.1163/1568539x-00003280.

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The thermal environment within a reptile nest can affect the phenotypic traits of hatchlings, and hence (potentially) their fitness. Research on this topic needs to measure phenotypic traits relevant to the species involved; and hence, studies on unusual species need to measure unusual traits. We investigated the effects of two incubation temperatures on the morphology and behaviour of hatchling veiled chameleons (Chamaeleo calyptratus). Colder-incubated eggs exhibited a longer incubation period, but produced larger faster-growing hatchlings. Incubation treatment also affected a chameleon’s activity level and its unique foraging tactics. Cold-incubated animals were more sedentary, caught prey faster, and extended their tongues farther to reach prey than did their warm-incubated counterparts. Thus, the fitness costs of low temperatures in the nest (slow development, and thus late hatching) may be offset by incubation-derived enhancements in hatchling growth rates and foraging abilities.

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Paré, J. A., K. A. Coyle, L. Sigler, A. K. Maas, and R. L. Mitchell. "Pathogenicity of theChrysosporiumAnamorph ofNannizziopsis vriesiifor veiled chameleons (Chamaeleo calyptratus)." Medical Mycology 44, no. 1 (2006): 25–31. http://dx.doi.org/10.1080/13693780500165461.

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Pino-Vera, Román, Néstor Abreu-Acosta, and Pilar Foronda. "Study of Zoonotic Pathogens in Alien Population of Veiled Chameleons (Chamaeleo calyptratus) in the Canary Islands (Spain)." Animals 13, no. 14 (2023): 2288. http://dx.doi.org/10.3390/ani13142288.

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Veiled chameleons (Chamaeleo calyptratus) are native to the Arabian Peninsula that have been introduced as pets in many regions around the world, such as the Canary Islands (Spain). In this work, the gastrointestinal content from veiled chameleons of Gran Canaria island (Canary Islands) has been analyzed to determine the presence of zoonotic bacteria. Forty animals were analyzed using different selective culture media and PCR. The most isolated bacteria were Yersinia enterocolitica (52.4%), followed by Salmonella spp. (40.0%), with positive isolates for Salmonella Tyhpi and Salmonella Typhimurium. Pseudomonas spp. was found in 32.5% of the chameleons. More than half were positive for Pseudomonas aeruginosa. Antibiotic-resistant Staphylococcus spp. was detected in six animals plus one isolate of non-resistant Staphylococcus hominis. Multiple mycobacteria species belonging to both tuberculous and non-tuberculous complexes were identified as well as Escherichia coli carrying the stx1 and eae virulence genes with 12.5% and 7.5% prevalence, respectively. Listeria monocytogenes, Campylobacter spp., and Vibrio spp. were found in lower proportion (<5%). The results obtained indicate that veiled chameleons in Gran Canaria could be playing a role in the maintenance and dissemination of the pathogens detected, harming public health and biodiversity.

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Mustafa, Seven, and Iliana Ruzhanova-Gospodinova. "HEMIPENECTOMY IN LEOPARD GECKOS, CHAMELEONS AND BEARDED DRAGONS." Tradition and Modernity in Veterinary Medicine 9, no. 1 (2024): 24–31. https://doi.org/10.5281/zenodo.12684427.

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The purpose of the present study aims to describe 16 clinical cases of pet lizards with hemipenile prolapse –11 leopard geckos (Eublepharis macularius), 3 chameleons (2 Chamaeleo calyptratus and 1 Furcifer parda-lis), and 2 bearded dragons (Pogona vitticeps). After an unsuccessful attempt of manual repositioning of the everted hemipenes, unilateral or bilateral surgical amputation was performed to avoid future complications. All patients were anesthetized with a combination of medetomidine hydrochloride and ketamine hydrochloride. In the bearded dragons, a local block with lidocaine hydrochloride was additionally used. The authors' clinical experience with this surgical procedure confirmed the view that the hemipenectomy is an appropriate attempt in hemipenile prolapse in pet lizards from the Eublepharidae, Chamaeleonidae, and Agamidae families.

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Hoby, S., M. Clauss, A. Aebischer, C. Wenker, N. Robert, and A. Liesegang. "Dry matter and calcium digestibility in captive veiled chameleons (Chamaeleo calyptratus)." Journal of Animal Physiology and Animal Nutrition 96, no. 5 (2011): 778–82. http://dx.doi.org/10.1111/j.1439-0396.2011.01170.x.

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