Exploring the diversity of the deep-sea shrimp in the ‘Glyphocrangon spinicauda A. Milne-Edwards, 1881’ species group (Decapoda, Crustacea, Glyphocrangonidae) off Taiwan and Dongsha

Examination of the material collected by Taiwan deep-sea cruises reveals the presence of five species of the deep-sea shrimp genus Glyphocrangon A. Milne-Edwards, 1881, representing new records for Taiwan and Dongsha (Pratas Island; under jurisdiction of Taiwan). These species are Glyphocrangon alba...

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Bibliographic Details
Published in:Journal of the Marine Biological Association of the United Kingdom 2023-09, Vol.103, Article e72
Main Authors: Chang, Su-Ching, Chen, Chien-Lin, Chen, Jing-Yi, Komai, Tomoyuki
Format: Article
Language:English
Subjects:
Aquatic crustaceans
Biogeography
Colour
Computed tomography
Cruises
Crustaceans
Deep sea
Deep sea environments
Deep water
Diagnostic systems
Females
Glyphocrangon
Glyphocrangon spinicauda
Habitus
Illustrations
Jurisdiction
Males
Marine crustaceans
Morphology
New records
Ornamentation
Seabirds
Shrimps
Species
Synonymy
Tomography
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Summary:Examination of the material collected by Taiwan deep-sea cruises reveals the presence of five species of the deep-sea shrimp genus Glyphocrangon A. Milne-Edwards, 1881, representing new records for Taiwan and Dongsha (Pratas Island; under jurisdiction of Taiwan). These species are Glyphocrangon albatrossae, G. caecescens, G. indonesiensis, G. major and G. proxima, all of which belong to the informal Glyphocrangon spinicauda species group. These findings bring the total number of species in the G. spinicauda species group reported in the waters around Taiwan and Dongsha to 11. The complex ornamentation of the body surface of each species is shown using micro-computed tomography. Diagnosis and illustrations showing diagnostic characters and living colouration are provided for most, if not all, of these species. Glyphocrangon grandis is placed under the synonymy of G. major based on morphology, because it was found that diagnostic characters proposed to distinguish these two taxa are variable within the current series of specimens. The biogeographical distributions of these species are presented, and a key is provided to help identify the 11 known species in this region.
ISSN:0025-3154
1469-7769
DOI:10.1017/S0025315423000620