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- Title
Paratrypaea Komai & Tachikawa, 2008 (Decapoda: Axiidea: Callianassidae): more than two or three species.
- Authors
Poore, Gary C B; Kou, Qi
- Abstract
Paratrypaea Komai & Tachikawa, 2008 has for more than a decade been thought to contain only two species, both widespread throughout the Indo-West Pacific, or briefly three species. Molecular studies using mitochondrial 16S rRNA and 12S rRNA plus nuclear H3 and 18S rRNA genes, repeated here with samples from more individuals, have shown well separated clades within the genus. Morphological examination has found differences, especially in the form of the adult male cheliped, between the clades leading to the conclusion that Paratrypaea comprises at least eight species of which four are new and described herein. Not all closely related clades could be morphologically distinguished. Some species are narrowly and others widely distributed. The species are : P. baliensis sp. nov. from Indonesia; P. bouvieri (Nobili, 1904) from the Red Sea and Indian Ocean ; P. chichijimaensis (Sakai, 2015) comb. nov. from Japan; P. dworschaki sp. nov. from the Hawaiian Islands; P. maldivensis (Borradaile, 1904) from the eastern Indian Ocean, Papua New Guinea, and possibly western Pacific; P. niuginiensis sp. nov. from Papua New Guinea; P. rectangularis (Ngoc-Ho, 1991) from French Polynesia to the Red Sea; and P. rempiensis sp. nov. from Papua New Guinea. A published partial 16S sequence from Japan has provided evidence of one more species than those proposed here. Paratrypaea cristata (Borradaile, 1910) comb. nov. remains a species inquirenda.
- Subjects
PAPUA New Guinea; SPECIES; BIOLOGICAL classification; RIBOSOMAL RNA
- Publication
Journal of Crustacean Biology, 2024, Vol 44, Issue 2, p1
- ISSN
0278-0372
- Publication type
Article
- DOI
10.1093/jcbiol/ruae015