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Journal articles on the topic 'Rhigonematidae'

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Published: 3 June 2025

Last updated: 31 July 2025

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1

García-Rodríguez, Nayla, and Jans Morffe-Rodríguez. "Redescripción de Rhigonema cubanum (Barus, 1969) (Rhigonematida: Rhigonematidae) y descripción de su espermiogénesis." Novitates Caribaea, no. 4 (October 1, 2011): 1–9. http://dx.doi.org/10.33800/nc.v0i4.144.

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Rhigonema cubanum (Barus, 1969) (Nematoda: Rhigonematidae) es redescrita sobre la base de nuevo material procedente de un espirobólido (Diplopoda: Spirobolida) no identificado. Esta especie se caracteriza por presentar un sistema reproductor femenino de Tipo 1, cutícula cervical provista de microtricos visibles hasta el fin del cuerpo esofágico, machos con espículas isomórficas, isométricas, cortas y sigmoidales y ocho pares de papilas: cuatro precloacales y cuatro postcloacales. Se describe la espermiogénesis y se ofrece una tabla comparativa con las medidas de los ejemplares de la localidad

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2

Hunt, David. "The African Rhigonematoidea (Nematoda: Rhigonematida). 2. Six new species of Rhigonema Cobb, 1898 (Rhigonematidae)." Nematology 4, no. 7 (2002): 803–27. http://dx.doi.org/10.1163/156854102760402595.

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AbstractSix new species of Rhigonema are described from the gut of various African diplopods. Rhigonema fecundum sp. n., from South Africa, is characterised by medium to fairly long body length, finely pilose anterior region, posterior margin of cephalic collar smoothly fused to body contour, Type 2 genital tract with a long ovejector, presence of a long, closely adpressed, vulval flap, tail shape in both sexes, broad spicules of medium length and complement of 23 copulatory papillae of which three pairs are subdorsal or sublateral in position. Rhigonema oxydesmi sp. n., from Oxydesmus platyce

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3

Adamson, Martin L. "Rhigonematid (Rhigonematida; Nematoda) parasites of Scaphiostreptus seychellarum (Spirostreptida; Diplopoda) in the Seychelles with comments on ovejector structure in Rhigonema Cobb, 1898." Canadian Journal of Zoology 65, no. 8 (1987): 1889–97. http://dx.doi.org/10.1139/z87-289.

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Two new species of Rhigonematida are described from the posterior intestine of Scaphiostreptus seychellarum from the Seychelles. Brumptaemilius seychellarum n.sp. (Ransomnematoidea; Carnoyidae) resembles B. gabonensis, B. venardi, B. oschei, and B. monsarratae in that the caudal end of the male is not abruptly truncate and supports an appendage longer than but not twice as long as the gubernaculum. The new species differs from the first two species in that it bears two longitudinal sub-ventral preanal rows of cuticular bosses. It is distinguished from B. oschei on the basis of details in the s

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4

Morffe, Jans, and Koichi Hasegawa. "Rhigonema naylae n. sp. (Rhigonematomorpha: Rhigonematidae) a new parasitic nematode from a Japanese polydesmid millipede (Polydesmida: Xystodesmidae)." Zootaxa 4269, no. 2 (2017): 277–86. https://doi.org/10.11646/zootaxa.4269.2.6.

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Morffe, Jans, Hasegawa, Koichi (2017): Rhigonema naylae n. sp. (Rhigonematomorpha: Rhigonematidae) a new parasitic nematode from a Japanese polydesmid millipede (Polydesmida: Xystodesmidae). Zootaxa 4269 (2): 277-286, DOI: 10.11646/zootaxa.4269.2.6

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Hunt, David, and Dave Moore. "Rhigonematida from New Britain diplopods. 2. The genera Rhigonema Cobb, 1898 and Zalophora Hunt, 1994 (Rhigonematoidea: Rhigonematidae) with descriptions of three new species." Nematology 1, no. 3 (1999): 225–42. http://dx.doi.org/10.1163/156854199508162.

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AbstractThree new species from the genera Rhigonema and Zalophora are described and illustrated from two unidentified species of spirobolid diplopod from New Britain. The species proposed are Rhigonema licinacanthum sp. n., Zalophora deinostoma sp. n. and Z. nemophila sp. n. A second population of R. tribonophorum Hunt, 1995 is described and the original description supplemented, caudal rugosities being recorded in the male for the first time in the genus. SEM micrographs supplement the descriptions. The bionomics of Zalophora are discussed and evidence presented to show that, unlike the other

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6

Hunt, D. J., and S. Spiridonov. "Rhigonema euprepeia n. sp. (Nematoda: Rhigonematida: Rhigonematidae), a parasite from a glomerid millipede (Diplopoda: Oniscomorpha) from Vietnam." Systematic Parasitology 32, no. 3 (1995): 233–37. http://dx.doi.org/10.1007/bf00008832.

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7

García, Nayla, and Jans Morffe. "A new species of Rhigonema Cobb, 1898 (Nematoda: Rhigonematidae) from a Cuban spirobolid millipede (Diplopoda: Spirobolida)." Papéis Avulsos de Zoologia 54, no. 1 (2014): 1–8. https://doi.org/10.1590/0031-1049.2014.54.01.

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García, Nayla, Morffe, Jans (2014): A new species of Rhigonema Cobb, 1898 (Nematoda: Rhigonematidae) from a Cuban spirobolid millipede (Diplopoda: Spirobolida). Papéis Avulsos de Zoologia (São Paulo) 54 (1): 1-8, DOI: 10.1590/0031-1049.2014.54.01, URL: http://dx.doi.org/10.1590/0031-1049.2014.54.01

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8

Waerebeke, Daniel Van. "Obainia adamsoni n. sp. (Rhigonematidae, Nematoda), parasite de Iule (Diplopoda) à Madagascar." Bulletin du Muséum national d'histoire naturelle 8, no. 1 (1986): 117–22. http://dx.doi.org/10.5962/p.287622.

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9

Adamson, Martin L., and D. Van Waerebeke. "Carnoya kermarreci n.sp. (Rhigonematidae: Nematoda) from Anadenobolus politus (Porat) (Rhinocricidae: Diplopoda) from Guadeloupe." Systematic Parasitology 7, no. 1 (1985): 27–32. http://dx.doi.org/10.1007/bf00010158.

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10

Hunt, David. "Five new species of Rhigonema Cobb, 1898 (Rhigonematida: Rhigonematidae) from the Philippines and Vietnam with observations on the morphology of the Indo-Malayan forms and nematophagy by R. voratum sp. n." Nematology 1, no. 4 (1999): 337–61. http://dx.doi.org/10.1163/156854199508306.

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AbstractFive new species of Rhigonema are described and illustrated from the gut of diplopods collected from the Philippines and Vietnam. R. flabellifer sp. n., R. golovatchi sp. n., R. rigonanae sp. n., R. spiridonovi sp. n. and R. voratum sp. n. are differentiated from one another and the remaining species in the genus by a combination of characters including form of the cephalic extremity, development and extent of the pilose region, female genital tract type, male and female tail shape, spicule form and number and disposition of the copulatory papillae. Two species, both from polydesmid di

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11

García, Nayla, and Jans Morffe. "A new species of Rhigonema Cobb, 1898 (Nematoda: Rhigonematidae) from a Cuban spirobolid millipede (Diplopoda: Spirobolida)." Papéis Avulsos de Zoologia (São Paulo) 54, no. 1 (2014): 1–8. http://dx.doi.org/10.1590/0031-1049.2014.54.01.

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12

Van waerebeke, D. "Glomerinema ratsimamangin. gen., n. sp. (Nematoda, Rhigonematidae) parasite de Gloméris (Diplopode) à Madagascar : description et spermiogenèse." Annales de Parasitologie Humaine et Comparée 60, no. 1 (1985): 23–32. http://dx.doi.org/10.1051/parasite/198560123.

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13

Mejia-Madrid, Hugo H. "A molecular phylogeny of the Rhigonematomorpha De Ley & Blaxter, 2002 as inferred from SSU and LSU rDNA sequences." Nematology 20, no. 6 (2018): 547–65. http://dx.doi.org/10.1163/15685411-00003161.

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Summary A molecular hypothesis of the Infraorder Rhigonematomorpha is presented. The phylogeny recovered using combined SSU and LSU markers suggests that the Rhigonematomorpha is nested within a larger clade that includes Ascaridomorpha, Spiruromorpha and Oxyuridomorpha and is strongly supported by maximum likelihood (ML) bootstrap support values (BS) and Bayesian posterior probabilities (BPP). SSU and LSU ML and Bayesian analyses recovered Rhigonematomorpha as a paraphyletic clade. In the ML and Bayesian analyses of a combined matrix of complete to partial sequences of SSU and LSU, respective

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14

MORFFE, JANS, and KOICHI HASEGAWA. "Rhigonema naylae n. sp. (Rhigonematomorpha: Rhigonematidae) a new parasitic nematode from a Japanese polydesmid millipede (Polydesmida: Xystodesmidae)." Zootaxa 4269, no. 2 (2017): 277. http://dx.doi.org/10.11646/zootaxa.4269.2.6.

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Rhigonema naylae n. sp. (Rhigonematomorpha: Rhigonematidae) is described from the hindgut of the polydesmid millipede Parafontaria laminata (Attems, 1909) (Polydesmida: Xystodesmidae), from Aichi prefecture, Japan. The new species is characterized by having a medium sized body in both sexes, the cephalic collar partially fused to the body cuticle, but not overhanging the body contour; cervical region densely covered in short, fine microtrichs that extend from the posterior margin of the cephalic collar to ca. 1.5 oesophagus lengths posterior to the basal bulb; tail short and conoid, subulate i

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15

Hunt, David J. "Remarks on the type species of Rhigonema Cobb, 1898 (Rhigonematoidea: Rhigonematidae) and Heth Cobb, 1898 (Ransomnematoidea: Hethidae)." Nematology 17, no. 3 (2015): 363–75. http://dx.doi.org/10.1163/15685411-00002873.

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Additional information onRhigonema brevicollum, the type of the genusRhigonema, and onHethjuli, the type of the genusHeth, is presented based on original, hitherto unpublished, descriptions held in the Cobb Archive at the USDA, Beltsville, MD, USA. Both species were originally published as small annotated illustrations in a general work, although the promised full descriptions were never published by Cobb. The genusRhigonemais shown to be based on a species lacking a vaginal diverticulum in the female genital system, but having a long, Type 2, ovejector. The genusDudekemia, originally differen

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Kitagami, Y., N. Kanzaki, and Y. Matsuda. "First report of segmented filamentous bacteria associated with Rhigonema sp. (Nematoda: Rhigonematidae) dwelling in hindgut of Riukiaria sp. (Diplopoda: Xystodesmidae)." Helminthologia 56, no. 3 (2019): 219–28. http://dx.doi.org/10.2478/helm-2019-0018.

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SummaryWe morphologically and molecularly characterized segmented filamentous bacteria (SFB) associated with Rhigonema sp. nematodes in millipede hindguts. Seventy-three Riukiaria sp. millipedes were collected from a broad-leaf forest in Japan, and nematodes were excised from the millipede’s hindguts. The occurrence rate of SFB associated with nematodes was 24 % (10/41) for males, 47 % (14/30) for females, and 100 % (2/2) for juveniles. Genomic DNA was extracted from four SFB-rich nematode heads, and we obtained 40 bacterial clones via analysis of nearly full-length 16S rDNA gene sequences. At

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17

Spiridonov, Sergei, and Vladimir Yushin. "Ultrastructure of the stoma in Heth mauriesi Adamson, 1982 (Rhigonematida: Hethidae)." Nematology 2, no. 4 (2000): 417–24. http://dx.doi.org/10.1163/156854100509277.

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AbstractThe structure of the highly modified cephalic end of females of Heth mauriesi (Rhigonematida, Hethidae) was studied under transmission and scanning electron microscopy. The specific muscle cells and cuticular differentiations responsible for regular movements of the Heth female cephalic end are described. An identification of separate regions of Heth mauriesi stoma with cheilostom, gymnostom and stegostom is proposed. Ultrastructure du stoma d 'Heth mauriesi Adamson, 1982 (Rhigonematida: Hethidae) - La structure de l'extrémité céphalique fortement modifiée des femelles de Heth mauriesi

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18

Carreno, Ramon A., David Ordosch, Josephine K. Koltek, Danielle R. Hamill, and Laura Tuhela. "First United States Records of the Rhigonematid GeneraHethandRuizia(Nematoda: Rhigonematida) from the Introduced Millipede,Anadenobolus monilicornis(Diplopoda: Rhinocricidae) in Key Largo, Florida, U.S.A." Comparative Parasitology 80, no. 2 (2013): 225–32. http://dx.doi.org/10.1654/4614.1.

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Hunt, David. "The African Rhigonematoidea (Nematoda: Rhigonematida). 1. Trachyglossus quintus gen. n., sp. n. (Xustrostomatidae fam. n.) with redescription of Rhigonema multipapillatum (Skrjabin, 1916) and designation of a neotype." Nematology 4, no. 6 (2002): 671–86. http://dx.doi.org/10.1163/156854102760396520.

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AbstractTrachyglossus quintus gen. n., sp. n. is described from Charactopygus frequens from Zaire. The new genus is characterised by having a dorsoventrally elongate oral aperture with the dorsal jawplate developed into a tongue-like rasp extending over halfway down the corpus lumen; a hypertrophied corpus and isthmus; well developed, lobate caudal alae in the male; hypertrophied, lobiform, vulval flap and by the form of the spicules and disposition of the copulatory papillae. It is closest to Xustrostoma, a genus with which it shares the development of a tongue-like rasp, but differs principa

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Rodríguez, Nayla García, and Jans Morffe Rodríguez. "A new species of Carnoya Gilson, 1898 (Rhigonematida: Carnoyidae) parasite of a spirobolid (Diplopoda: Spirobolida) from Cuba." Zootaxa 3795, no. 5 (2014): 549–56. https://doi.org/10.11646/zootaxa.3795.5.3.

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Rodríguez, Nayla García, Rodríguez, Jans Morffe (2014): A new species of Carnoya Gilson, 1898 (Rhigonematida: Carnoyidae) parasite of a spirobolid (Diplopoda: Spirobolida) from Cuba. Zootaxa 3795 (5): 549-556, DOI: 10.11646/zootaxa.3795.5.3

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NADLER, S. A., R. A. CARRENO, H. MEJÍA-MADRID, et al. "Molecular phylogeny of clade III nematodes reveals multiple origins of tissue parasitism." Parasitology 134, no. 10 (2007): 1421–42. http://dx.doi.org/10.1017/s0031182007002880.

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SUMMARYMolecular phylogenetic analyses of 113 taxa representing Ascaridida, Rhigonematida, Spirurida and Oxyurida were used to infer a more comprehensive phylogenetic hypothesis for representatives of ‘clade III’. The posterior probability of multiple alignment sites was used to exclude or weight characters, yielding datasets that were analysed using maximum parsimony, likelihood, and Bayesian inference methods. Phylogenetic results were robust to differences among inference methods for most high-level taxonomic groups, but some clades were sensitive to treatments of characters reflecting diff

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Adamson, M. L., and D. Van Waerebeke. "The Rhigonematida (Nematoda) of Diplopods : reclassification and its cladistic representation." Annales de Parasitologie Humaine et Comparée 60, no. 6 (1985): 685–702. http://dx.doi.org/10.1051/parasite/1985606685.

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Malysheva, Svetlana V., and Sergei E. Spiridonov. "Four new species of Heth Cobb, 1898 (Rhigonematida: Hethidae) from Vietnamese diplopods." Nematology 12, no. 4 (2010): 567–85. http://dx.doi.org/10.1163/138855409x126018972397911.

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Abstract Four new species of Heth are described from diplopods collected in different parts of Viet Nam: Heth vietnamensis sp. n. and H. tonkinensis sp. n. in Ba Vi National Park, Ha Tay Province; H. taybaci sp. n. in Lai Chau Province and H. taynguyeni sp. n. in Chu Yang Sin National Park, Dak Lak Province. The new species are morphologically related to those described from Papua New Guinea, but are differentiated by the form of the female cuticular armature. Heth vietnamensis sp. n. is characterised by the posterior end of the lappets overhanging the anterior pair of the lateral spines, the

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Adamson, Martin L., and Nancy H. B. Anderson. "Rhigonematid (Nematoda) parasites of Archispirostreptus tumuliporus (Spirostreptida; Diplopoda) in Malawi." Canadian Journal of Zoology 63, no. 4 (1985): 916–23. http://dx.doi.org/10.1139/z85-136.

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Two new species, including a new genus of rhigonematid nematode, are described from Archispirostreptus tumuliporus (Spirostreptida; Diplopoda) from Malawi. Brumptaemilius justini n.sp. resembles Brumptaemilius sclerophorus, the type species, and Brumptaemilius oschei in the form of the area rugosa in the male. It differs from male B. sclerophorus in having a caudal appendage which is longer and supports the last pair of caudal papillae; this pair is anterior to the caudal appendage in B. sclerophorus. Male B. justini differ from those of B. oschei in having a shorter caudal appendage, distinct

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Hunt, David. "The African Carnoyidae (Nematoda: Rhigonematida). 3. Four new species of Brumptaemilius Dollfus, 1952." Nematology 3, no. 7 (2001): 627–51. http://dx.doi.org/10.1163/156854101753536019.

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Malysheva, SV, and TH Cribb. "A new species ofHethCobb, 1898 (Nematoda: Rhigonematida: Hethidae) from an Australian millipede (Myriapoda: Diplopoda: Spirostreptida)." New Zealand Journal of Zoology 39, no. 4 (2012): 301–9. http://dx.doi.org/10.1080/03014223.2012.672435.

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Bowie, Jeanette Y. "New species of rhigonematid and thelastomatid nematodes from indigenous New Zealand millipedes." New Zealand Journal of Zoology 12, no. 4 (1985): 485–503. http://dx.doi.org/10.1080/03014223.1985.10428300.

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Malysheva, Svetlana V., and Pham Van Luc. "Cattiena fansipanis n. sp. (Nematoda: Rhigonematida: Carnoyidae) from a millipede (Myriapoda: Diplopoda: Spirobolida) in North Vietnam." Systematic Parasitology 81, no. 2 (2011): 135–46. http://dx.doi.org/10.1007/s11230-011-9333-8.

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van Waerebeke, Daniel, Nezha Noury-Sraïri, and Jean-Lou Justine. "Spermatozoa of rhigonematid nematodes: Morphology of 25 species and ultrastructure of Rhigonema madecassum." International Journal for Parasitology 20, no. 6 (1990): 779–84. http://dx.doi.org/10.1016/0020-7519(90)90011-b.

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Adamson, Martin L. "Nematode parasites of Orthoporus americanus (Diplopoda; Spirobolida) from Paraguay." Canadian Journal of Zoology 65, no. 12 (1987): 3011–19. http://dx.doi.org/10.1139/z87-456.

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Three new species of the Rhigonematida (Nematoda) are described from the posterior intestine of Orthoporus americanus from Paraguay. Heth orthopori n.sp. resembles Heth hamatus Bowie, 1985 from Eumastigonus kaorinus from New Zealand in that striae posterior to the cervical collar of the females bear rows of tiny spines; it differs from this species in that all spines in the cervical collar are of approximately the same size. Rondonema nelsonae n.sp. is most similar to the type species Rondonema rondoni Artigas, 1926 from an unidentified Brazilian diplopod in that lateral spines in the cervical

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Adamson, M. "Rhigonematida (Nematoda) of Rhinocricus bernardinensis (Rhinocricidae; Spirobolida; Diplopoda) with comments on r- and K-selection in nematode parasites of diplopods." Revue suisse de zoologie. 92 (1985): 871–96. http://dx.doi.org/10.5962/bhl.part.81920.

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Hunt, David. "The African Carnoyidae (Nematoda: Rhigonematida). 1. Brumptaemilius brevispiculus sp. n. from Ghana with observations on copulatory plugs and spermatophore development." Nematology 3, no. 4 (2001): 313–23. http://dx.doi.org/10.1163/156854101317020231.

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AbstractBrumptaemilius brevispiculus sp. n. from the gut of a spirostreptid diplopod from Ghana is described and illustrated with the aid of SEM. The species is characterised by the structure of the male area rugosa, particularly the ventral extension of the rugosities on to the tail spike and the transverse rows of imbricate spines in the postcloacal region, the tail spike ca 1-1.5 gubernaculum length long, the very short spicules bearing relatively few transverse striae, the form and disposition of the copulatory papillae and the presence of an external, pedunculate spermatophore. It is dist

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Hunt, David. "The African Carnoyidae (Nematoda: Rhigonematida). 5. Three new species of Brumptaemilius Dollfus, 1952 and remarks on B. seychellarum Adamson, 1987." Nematology 4, no. 6 (2002): 687–708. http://dx.doi.org/10.1163/156854102760396539.

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AbstractThree new species of the genus Brumptaemilius Dollfus, 1952 are described from the intestine of diplopods from Ghana and Ivory Coast. Brumptaemilius ultimus sp. n., from Ghana and Ivory Coast, is characterised by the huge spicules (731-894 μm long); numerous (105-136) transverse striae on the spicule shafts; the verrucose appearance of the tuberculate papillae; the blunt, peg-like spines on the posterior cloacal lip; the disposition and form of the rugosities; the very short male tail spike (0.3-0.5 times as long as the gubernaculum); lateral alae absent in both sexes and the exception

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Adamson, Martin L. "Rhigonematida (Nematoda) of Rhinocricus bernardinensis (Rhinocricidae; Spirobolida; Diplopoda) with comments on r- and K-selection in nematode parasites of diplopods." Revue suisse de zoologie 92 (June 6, 1985): 871–96. https://doi.org/10.5281/zenodo.13657135.

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Hunt, David. "The African Carnoyidae (Nematoda: Rhigonematida). 4. Abirovulva insolita gen. n., sp. n., parasite of Coromus thomsoni (Polydesmida: Oxydesmidae) from Ivory Coast." Nematology 4, no. 3 (2002): 429–39. http://dx.doi.org/10.1163/156854102760199268.

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AbstractAbirovulva gen. n. is proposed for nematode denizens of the gut of various African polydesmid diplopods (Coromus thomsoni , Oxydesmus mimodesmus parabellus , O. sicarius , O. platycercus concolor , Plagiodesmus brunneus , P. variabilis and Prepodesmus ornatus). The new genus is usually accompanied by species of Afrocarnoya (also apparently restricted to polydesmid diplopods) and Rhigonema and is likely to be distributed throughout the Central to West African region. Abirovulva gen. n. is unique amongst African Carnoyidae because of a combination of characters, including the very poster

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RODRÍGUEZ, NAYLA GARCÍA, and JANS MORFFE RODRÍGUEZ. "A new species of Carnoya Gilson, 1898 (Rhigonematida: Carnoyidae) parasite of a spirobolid (Diplopoda: Spirobolida) from Cuba." Zootaxa 3795, no. 5 (2014): 549. http://dx.doi.org/10.11646/zootaxa.3795.5.3.

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Hunt, D. J. "Tutunema tutu n. g., n. sp., a primitive member of the Hethidae (Nematoda: Rhigonematida: Ransomnematoidea) parasitic in a Papua New Guinea diplopod." Systematic Parasitology 39, no. 1 (1998): 71–80. http://dx.doi.org/10.1023/a:1005918210996.

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Hunt, David. "The African Carnoyidae (Nematoda: Rhigonematida). 2. Martadamsonius aculeatus sp. n. and Waerebekeia debbiae sp. n., with additional data on Gilsonema venardi (Van Waerebeke, 1984)." Nematology 3, no. 5 (2001): 383–402. http://dx.doi.org/10.1163/156854101753250719.

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AbstractMartadamsonius aculeatus sp. n. is described from the gut of Spirostreptus timotheus from Zaire. It differs from M.duponti Van Waerebeke, 1987 in having virtually straight spicules as opposed to distinctly arcuate, eight vs four rows of cervical spines in the female; lateral alae extending to the tail region in the female (terminating prior to the vulva in M. duponti) and the development of a predominantly smooth, cuticular field located laterally on the male tail. From M. moramangiensis Van Waerebeke, 1987, it differs in lacking a small ventral notch on the straight edge of the gubern

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Spiridonov, Sergei, Pham Van Luc, and David Hunt. "Bizarre Ichthyocephalidae (Nematoda: Rhigonematida) from Vietnam with description of Ichthyocephaloides comatu sp. n., Xystrognathus priscus gen. n., sp. n. and X. phrissus gen. n., sp. n." Nematology 4, no. 7 (2002): 829–43. http://dx.doi.org/10.1163/156854102760402603.

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AbstractA bizarre new genus and three new species of parasitic Ichthyocephalidae are described and illustrated from the gut of Vietnamese diplopods. Ichthyocephaloides comatus sp. n., an atypical member of a predominantly Australasian genus, is characterised by the very posterior vulva (V = 92), single genital tract lacking a vaginal diverticulum, dorsal microtrichs long and curled but ventral microtrichs short and bristle-like, basal bulb barely wider than isthmus, short, conoid tail in both sexes, complement of 20 copulatory papillae, five pairs being precloacal and five pairs postcloacal, a

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García Rodríguez, Nayla, and Jans Morffe Rodríguez. "Estado taxonómico de Ichthyocephalus anafe García et Coy, 1996 e I. Guaniguanico García et Coy, 1999 (Rhigonematida: Ichthyocephalidae) y nuevos registros de I. cubensis Spiridonov, 1989 para Cuba." Novitates Caribaea, no. 7 (October 1, 2014): 51–60. http://dx.doi.org/10.33800/nc.v0i7.65.

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Se discute el estado taxonómico de Ichthyocephalus anafe García et Coy, 1996 e I. guaniguanico Coy et García, 1999 (Nematoda: Ichthyocephalidae). La revisión de material tipo de I. anafe, así como de nuevos ejemplares provenientes de la localidad y hospedero tipos de I. guaniguanico demostró que ambas especies presentan similitudes morfométricas y morfológicas con I. cubensis Spiridonov, 1989. De esta forma, I. anafe e I. guaniguanico se consideran sinónimos de I. cubensis. Se registra la especie para dos nuevas localidades de Cuba: Tres Ceibas de Clavellinas, provincia de Matanzas y Jobo Rosa

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Spiridonov, Sergei, and David Hunt. "A new genus of Carnoyidae (Nematoda: Rhigonematida) with descriptions of Cattiena trachelomegali gen. n., sp. n. and C. trigoniuli gen. n., sp. n., parasites of Spirobolida (Diplopoda) from Vietnam." Nematology 3, no. 6 (2001): 559–71. http://dx.doi.org/10.1163/156854101753389176.

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AbstractCattiena gen. n., a new genus from the Carnoyidae, is described from the posterior gut of two genera of spirobolid diplopods from Vietnam. The new genus is characterised by: presence of eight somatic spine rows in the cervical region of both male and female, the four sublateral spine rows being better developed; presence of six cuticularised plates around the female oral opening; extremely posterior vulva; two anteriorly directed ovaries; isomorphic and isometric spicules; boat-shaped gubernaculum of similar form to the spicules; gubernaculum with a dorsal hole; well developed, smooth

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Zhang, Yu, Lian-Di Wang, Koichi Hasegawa, et al. "Molecular identification of a new species of Rhigonema (Nematoda: Rhigonematidae) and phylogenetic relationships within the infraorder Rhigonematomorpha." Parasites & Vectors 15, no. 1 (2022). http://dx.doi.org/10.1186/s13071-022-05544-9.

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Abstract Background The infraorder Rhigonematomorpha comprises a group of obligate parasitic nematodes of millipedes (Arthropoda: Diplopoda). The current species identification of Rhigonematomorpha nematodes remains mainly based on morphological features, with molecular-based identification still in its infancy. Also, current knowledge of the phylogeny of Rhigonematomorpha is far from comprehensive. Methods The morphology of Rhigonematomorpha nematodes belonging to the genus Rhigonema, collected from the millipede Spirobolus bungii Brandt (Diplopoda: Spirobolida) in China, was studied in detai

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Fabiyi, O. A., T. T. Bello, G. Liébanas, et al. "Anatomical and molecular characterization of some rhigonematid parasites of millipedes in Nigeria, with new insights into their phylogeny." Journal of Helminthology 97 (2023). http://dx.doi.org/10.1017/s0022149x23000275.

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Abstract Parasitic nematodes of millipedes from Nigeria are molecularly characterized for the first time. During nematode surveys on live giant African millipedes from several localities in Nigeria, 4 species of rhigonematids were identified by application of integrative taxonomical approaches (morpho-anatomy and molecular markers), including Brumptaemilius sp., Gilsonema gabonensis, Obainia pachnephorus, and Rhigonema disparovis. The results of morphometric and molecular analyses of D2-D3 28S, ITS, partial 18S rRNA, and cytochrome oxidase c subunit 1 (COI) gene sequences further characterized

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Yousaf, Muhammad Amjad, Yi-Nuo Sun, Hui-Xia Chen, Asmat Ullah Khan, and Liang Li. "Morphology, complete mitochondrial genome and molecular phylogeny of Heterakis pucrasia sp. n. (Nematoda: Ascaridida) from the koklass pheasant Pucrasia macrolopha (Lesson) (Galliformes: Phasianidae) in Pakistan." Frontiers in Veterinary Science 12 (March 3, 2025). https://doi.org/10.3389/fvets.2025.1519092.

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Species of Heterakis (Ascaridida: Heterakoidea) are commonest nematode parasites occurring in the alimentary canal of wild and domestic birds, which are of major socio-economic importance, due to some Heterakis species causing Heterakidosis in wild birds and poultry. In the present study, a new species of Heterakis, H. pucrasia sp. n., was described using integrated methods based on specimens collected from the koklass pheasant Pucrasia macrolopha (Lesson) (Galliformes: Phasianidae) in Pakistan. The complete mitochondrial genome of H. pucrasia sp. n. was sequenced and annotated for the first t

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