On the Systematic Position of Galatheacaris abyssalis (Decapoda: Galatheacaridoidea)

The systematic status of Galatheacaris abyssalis is assessed on the basis of recently collected material. Mitochondrial DNA analysis reveals that the 16S rRNA sequence from one specimen is identical with that of Eugonatonotus chacei, while the COI sequences of the two taxa diverge only by 0.6% (3 bp...

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Bibliographic Details
Published in:Journal of crustacean biology 2010-08, Vol.30 (3), p.521-527
Main Authors: DeGrave, Sammy, Chu, Ka Hou, Chan, Tin-Yam Y
Format: Article
Language:English
Subjects:
Caridea
Crustaceans
Decapoda
DNA
DNA barcoding
Eugonatonotus
Eugonatonotus chacei
Galatheacarididae
Galatheacaris
Galatheacaris abyssalis
Holotypes
Larvae
Larval development
Marine
Polymerase chain reaction
Shrimp
Systematics, Biogeography and Phylogeny
Taxa
Young animals
Zoology
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Summary:The systematic status of Galatheacaris abyssalis is assessed on the basis of recently collected material. Mitochondrial DNA analysis reveals that the 16S rRNA sequence from one specimen is identical with that of Eugonatonotus chacei, while the COI sequences of the two taxa diverge only by 0.6% (3 bp), indicating that the two taxa are conspecific. Based on the morphological development of specimens attributed to G. abyssalis, we conclude that this taxon represents the megalopal stage of E. chacei. Therefore, the family Galatheacarididae and the superfamily Galatheacaridoidea should be abandoned.
ISSN:0278-0372
1937-240X
DOI:10.1651/10-3278.1