Munidopsis species (Crustacea: Decapoda: Munidopsidae) from carcass falls in Weijia Guyot, West Pacific, with recognition of a new species based on integrative taxonomy
|Author(s)||Dong Dong1, 2, Xu Peng3, 4, Li Xin-Zheng1, 2, 5, 6, Wang Chunsheng3, 4, 7|
|Affiliation(s)||1 : Chinese Acad Sci, Inst Oceanol, Dept Marine Organism Taxon & Phylogeny, Qingdao, Shandong, Peoples R China.
2 : Chinese Acad Sci, Ctr Ocean Megasci, Qingdao, Shandong, Peoples R China.
3 : Minist Nat Resources, Key Lab Marine Ecosyst & Biogeochem, State Ocean Adm, Hangzhou, Zhejiang, Peoples R China.
4 : Minist Nat Resources, Inst Oceanog 2, Hangzhou, Zhejiang, Peoples R China.
5 : Univ Chinese Acad Sci, Beijing, Peoples R China.
6 : Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Biol & Biotechnol, Qingdao, Shandong, Peoples R China.
7 : Shanghai Jiao Tong Univ, Sch Oceanog, Shanghai, Peoples R China.
|Source||Peerj (2167-8359) (Peerj Inc), 2019-11 , Vol. 7 , P. e8089 (20p.)|
|Keyword(s)||Munidopsis, Carcass fall, Weijia Guyot, New species, Molecular phylogeny|
Several squat lobster specimens of the genus Munidopsis were collected from an artificially placed carcass fall (cow bones) on Weijia Guyot in the western Pacific Ocean. Based on morphological comparisons and molecular analysis, three specimens were confirmed as juveniles of M. albatrossae Pequegnat & Pequegnat, 1973, which represents the first record of this species in the western Pacific. The other specimens collected are newly described as Munidopsis spinifrons sp. nov., which is distinguished from the closely related species in having a spinose rostrum and basal lateral eyespine on the eyestalk. The M. albatrossae from Weijia Guyot exhibited very low genetic distances when compared with a conspecific sample from Monterey Bay, USA, and the closely related species M. aries (A. Milne Edwards, 1880) from the northeastern Atlantic. A phylogenetic tree based on the mtCOI gene shows M. spinifrons sp. nov. as sister to M. vrijenhoeki Jones & Macpherson, 2007 and M. nitida (A. Milne Edwards, 1880), although M. vrijenhoeki presents a complex relationship with other species in the clade. The systematic status of the new species and the closely related species are discussed.