A new species of<i>Bathynomus</i>Milne-Edwards, 1879 (Isopoda: Cirolanidae) from the southern Gulf of Mexico with a redescription of<i>Bathynomus jamesi</i>Kou, Chen and Li, 2017 from off Pratas Island, Taiwan

Booralana nickorum sp. nov. is described from the deep-water slope of the Exuma Sound, The Bahamas, from depths of 540 to 560 metres. It is the fourth species to be assigned to the genus and the second species described from the Western North Atlantic. The species can be distinguished from Booralana tricarinata Camp and Heard, 1988 and the other species by the sub-triangular pleotelson and the uropodal exopod of mature males being far longer than endopod, with both rami extending well beyond the posterior margin of the pleotelson. Additionally, pleopods 3 and 4 lack a prominent angle at midpoint of ramus.

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DNA barcoding of the supergiant isopods from Bathynomus kensleyi Lowry & Dempsey, 2006 (Cirolanidae) and a molecular biology comparison of B. jamesi Kou, Chen & Li, 2017

Huang,

Bruce

2024

BDJ

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DNA was extracted from tissue samples from specimens of newly-collected Bathynomus kensleyi from Queensland and subsequently the COI and 16S rRNA sequences were successfully cloned. The holotype of B. kensleyi was also sampled for COI only. Comparison of the sequences showed that, for the COI sequences, B. jamesi and B. kensleyi have more than 59 different DNA positions amongst 596 known reading sequences. The Kimura two parameter (K2P) distance analysis confirmed that B. jamesi and B. kensleyi are two species. Indian records of Bathynomus are reviewed and three of the four identified species from India are shown to be misidentifications. Bathynomus decemspinosus, B. doederlini and B. kensleyi are found to not occur in India and the only accepted record is that of Bathynomus keablei Lowry & Dempsey, 2006. We conclude that, based on molecular analysis and morphological comparisons, the correct species identity of Indian species other than Bathynomus keablei remains unknown.

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A new species ofBathynomusMilne-Edwards, 1879 (Isopoda: Cirolanidae) from the southern Gulf of Mexico with a redescription ofBathynomus jamesiKou, Chen and Li, 2017 from off Pratas Island, Taiwan

Cited by 3 publications

References 20 publications

Community composition and organic carbon flux in twilight zone communities of The Tongue of the Ocean and Exuma Sound, The Bahamas

Community composition and organic carbon flux in twilight zone communities of The Tongue of the Ocean and Exuma Sound, The Bahamas

A new species of deep-sea Booralana Bruce, 1986 (Crustacea: Isopoda: Cirolanidae) from The Bahamas, Western North Atlantic

DNA barcoding of the supergiant isopods from Bathynomus kensleyi Lowry & Dempsey, 2006 (Cirolanidae) and a molecular biology comparison of B. jamesi Kou, Chen & Li, 2017

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A new species ofBathynomusMilne-Edwards, 1879 (Isopoda: Cirolanidae) from the southern Gulf of Mexico with a redescription ofBathynomus jamesiKou, Chen and Li, 2017 from off Pratas Island, Taiwan

Cited by 3 publications

References 20 publications

Community composition and organic carbon flux in twilight zone communities of The Tongue of the Ocean and Exuma Sound, The Bahamas

Community composition and organic carbon flux in twilight zone communities of The Tongue of the Ocean and Exuma Sound, The Bahamas

A new species of deep-sea Booralana Bruce, 1986 (Crustacea: Isopoda: Cirolanidae) from The Bahamas, Western North Atlantic

DNA barcoding of the supergiant isopods from Bathynomus kensleyi Lowry &amp; Dempsey, 2006 (Cirolanidae) and a molecular biology comparison of B. jamesi Kou, Chen &amp; Li, 2017

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Product

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DNA barcoding of the supergiant isopods from Bathynomus kensleyi Lowry & Dempsey, 2006 (Cirolanidae) and a molecular biology comparison of B. jamesi Kou, Chen & Li, 2017