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Relevant bibliographies by topics / Trachylinae

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Academic literature on the topic 'Trachylinae'

Author: Grafiati

Published: 4 June 2025

Last updated: 23 June 2025

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Journal articles on the topic "Trachylinae"

1

Collins, Allen G., Bastian Bentlage, Alberto Lindner, et al. "Phylogenetics of Trachylina (Cnidaria: Hydrozoa) with new insights on the evolution of some problematical taxa." Journal of the Marine Biological Association of the United Kingdom 88, no. 8 (2008): 1673–85. http://dx.doi.org/10.1017/s0025315408001732.

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Some of the most interesting and enigmatic cnidarians are classified within the hydrozoan subclass Trachylina. Despite being relatively depauperate in species richness, the clade contains four taxa typically accorded ordinal status: Actinulida, Limnomedusae, Narcomedusae and Trachymedusae. We bring molecular data (mitochondrial 16S and nuclear small and large subunit ribosomal genes) to bear on the question of phylogenetic relationships within Trachylina. Surprisingly, we find that a diminutive polyp form,Microhydrula limopsicola(classified within Limnomedusae) is actually a previously unknown life stage of a species of Stauromedusae. Our data confirm that the interstitial formHalammohydrasp. (Actinulida) is derived from holopelagic direct developing ancestors, likely within the trachymedusan family Rhopalonematidae. Trachymedusae is shown to be diphyletic, suggesting that the polyp stage has been lost independently at least two times within trachyline evolution. Narcomedusae is supported as a monophyletic group likely also arising from trachymedusan ancestors. Finally, some data, albeit limited, suggest that some trachyline species names refer to cryptic species that have yet to be sorted taxonomically.

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2

Toshino, Sho, Miyako Tanimoto, and Ryo Minemizu. "Olindias deigo sp. nov., a new species (Hydrozoa, Trachylinae, Limnomedusae) from the Ryukyu Archipelago, southern Japan." ZooKeys 900 (December 31, 2019): 1–21. http://dx.doi.org/10.3897/zookeys.900.38850.

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A new hydromedusa belonging to the order Limnomedusae is reported from the Ryukyu Archipelago, southern Japan. Olindias deigosp. nov. can be distinguished from other Olindiidae species by the number and color of tentacles. Mature medusae of O. deigosp. nov. were collected to observe the life history, including polyp (hydroid) and medusa formation. A comparative table of the primary diagnostic characters of the genus is provided.

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3

Toshino, Sho, Miyako Tanimoto, and Ryo Minemizu. "Olindias deigo sp. nov., a new species (Hydrozoa, Trachylinae, Limnomedusae) from the Ryukyu Archipelago, southern Japan." ZooKeys 900 (December 31, 2019): 1–21. https://doi.org/10.3897/zookeys.900.38850.

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A new hydromedusa belonging to the order Limnomedusae is reported from the Ryukyu Archipelago, southern Japan. Olindias deigosp. nov. can be distinguished from other Olindiidae species by the number and color of tentacles. Mature medusae of O. deigosp. nov. were collected to observe the life history, including polyp (hydroid) and medusa formation. A comparative table of the primary diagnostic characters of the genus is provided.

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4

Mills, C. E., G. O. Mackie, and C. L. Singla. "Giant nerve axons and escape swimming in Amphogona apicata with notes on other hydromedusae." Canadian Journal of Zoology 63, no. 9 (1985): 2221–24. http://dx.doi.org/10.1139/z85-328.

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The trachyline medusa Amphogona apicata (family Rhopalonematidae) possesses giant axons and other special features previously described in Aglantha digitale and shows similar escape-swimming and slow-swimming responses. A review of the literature and new observations on several species suggest that, with the possible exception of members of the Ptychogastriidae, these locomotory adaptations are peculiar to certain rhopalonematid hydromedusae.

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5

Осадченко, Б. В., та Ю. А. Краус. "TRACHYLINA: ГРУППА, ОСТАВШАЯСЯ ЗАГАДКОЙ ПОСЛЕ 150 ЛЕТ ИЗУЧЕНИЯ, "Онтогенез"". Онтогенез, № 3 (2018): 153–64. http://dx.doi.org/10.7868/s0475145018030023.

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6

Mackie, G. O., Claus Nielsen, and C. L. Singla. "The Tentacle Cilia ofAglantha digitale(Hydrozoa: Trachylina) and their Control." Acta Zoologica 70, no. 3 (1989): 133–41. http://dx.doi.org/10.1111/j.1463-6395.1989.tb01063.x.

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7

Osadchenko, B. V., and Yu A. Kraus. "Trachylina: The Group That Remains Enigmatic Despite 150 Years of Investigations." Russian Journal of Developmental Biology 49, no. 3 (2018): 134–45. http://dx.doi.org/10.1134/s1062360418030074.

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8

Larson, R. J., L. P. Madin, and G. R. Harbison. "In Situ Observations of Deepwater Medusae in the Genus Deepstaria, with a Description of D. Reticulum, Sp. Nov." Journal of the Marine Biological Association of the United Kingdom 68, no. 4 (1988): 689–99. http://dx.doi.org/10.1017/s0025315400028800.

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Medusae are common constituents of the meso-and bathypelagic fauna. Small, transparent trachyline hydromedusae are usually most abundant, but the larger (2–10 cm diameter) pigmented coronate scyphomedusae are often collected in trawl nets (Thurston, 1977; Roe, James & Thurston, 1984; Larson, 1986) or observed from submersibles (Mackie & Mills, 1983; Mackie, 1985; Larson, Madin & Harbison, unpublished observations). Larger (30–70 cm) deep-sea semaeostome scyphomedusae are only infrequently collected in nets (Harbison, Smith & Backus, 1973; Larson, 1986), and would appear to be the rarest forms. For example, Thurston (1977) collected over 16000 midwater medusae in trawls yet he did not report taking a single mesopelagic semaeostome. However, recent investigations using submersibles have shown that these medusae are much more common than net hauls alone would suggest (Smith, 1982).

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9

Singla, C. L., and G. O. Mackie. "Immunogold labelling of FMRFamide-like neuropeptide in neurons of Aglantha digitale (Hydromedusae: Trachylina)." Canadian Journal of Zoology 69, no. 3 (1991): 800–802. http://dx.doi.org/10.1139/z91-116.

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FMRFamide-like neuropeptides have been implicated in transmitter roles in cnidarians. This study was undertaken to determine the ultrastructural distribution of FMRFamide-like immunoreactive material in jellyfish neurons. Immunoreactivity was found to be restricted to large dense cored vesicles. These vesicles were only rarely found at synapses while the small clear vesicles that are found clustered at synapses were not immunoreactive. These results suggest that FMRFamide-like neuropeptides are not released at conventional synapses in cnidarians but at other, unknown sites, and that the synaptic vesicles observed contain a different, presumably fast neurotransmitter.

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10

Dorado, Edgar, and Cristina Cedeño. "Copepods, hydromedusae and siphonophores: Diversity and distribution in the Gerlache Strait, Antarctic Peninsula." Boletín de Investigaciones Marinas y Costeras 50, SuplEsp (2021): 169–86. http://dx.doi.org/10.25268/bimc.invemar.2021.50.suplesp.942.

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Project Biodiversity and oceanographic conditions of the strait of Gerlache “Biogerlache-Antarctica”, aims to carry out the characterization of the Antarctic fauna of the strait, generating new contributions to the biological inventories of Antarctica. Present work focuses on the biodiversity of the zooplanktonic community, specifically on copepods, hydromedusae and siphonophorae collected during the III Antarctic Expedition of Colombia “Admiral Padilla” (2016-2017). Sampling was carried out in seven oceanographic stations located along the Gerlache strait, with vertical trawls between the maximum depth of the station and the surface. 4100 organisms belonging to 38 species of the phylum Arthropoda (Orders Calanoid and Cyclopoid) and 10 species of the phylum Cnidaria (Subclasses Hydroidolina and Trachylina) were identified. Copepods families with the greatest richness of genera are Aetideidae and Metridinidae, with Metridia gerlachei, Chiridius polaris and Gaetanus tenuispinosus being frequent species in more than 50 % of the stations. Identified species are common to the Antarctic Peninsula (Bellingshausen Sea, Scotia Sea and the Weddell Sea), also the range of four copepods are extended for the epipelagic and mesopelagic waters of the Gerlache Strait. Other frequent species are the hydromedusae Arctapodema sp. and Solmundella bitentaculata and the siphonophores Dimophyes arctica and Diphyes antarctica, the latter being collected in both polygastric and eudoxic forms (the dominant form in all stations).

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Book chapters on the topic "Trachylinae"

1

Queiroz, Kevin de, Philip D. Cantino, and Jacques A. Gauthier. "Trachylina E. Haeckel 1879 as Trachylinae [C. W. Dunn and A. G. Collins], converted clade name." In Phylonyms. CRC Press, 2020. http://dx.doi.org/10.1201/9780429446276-126.

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