Vol. 57, 2018 (update: 2018.03.21; 04.10) Helice epicure, A New Species of Varunid Mud Crab (Brachyura, Decapoda, Grapsoidea) from the Ryukyus, JapanNgan Kee Ng1, Tohru Naruse2, and Hsi-Te Shih3,* doi:10.6620/ZS.2018.57-15
1Department
of Biological Sciences, National University of Singapore, 14, Science
Drive 4, Singapore 117543. E-mail: dbsngnk@nus.edu.sg (Received 9 February 2018; Accepted 11 March
2018; Communicated by Benny K.K. Chan) Ngan
Kee Ng, Tohru Naruse, and Hsi-Te Shih (2018) Helice epicure,
a new species of varunid crab, is described from the Ryukyu Islands,
Japan. The new species in the genus Helice De Haan, 1833 can be
distinguished from its congeners by morphological differences in the
chelae and suborbital crenulation. The morphological differences
between the new species and a sister clade (the H. latimera complex, including H. latimera Parisi, 1918, H. tientsinensis Rathbun, 1931 and
H. formosensis
Rathbun, 1931) are supported by mitochondrial cytochrome oxidase
subunit I (COI) divergences. However, the phylogenetic relationship
within the H. latimera complex
is unresolved for the time being. Key words: Helice epicure, H. formosensis, New species,
Varunid, Mitochondrial cytochrome oxidase subunit I. *Correspondence: Tel/Fax: 886-4-22856496. E-mail:
htshih@dragon.nchu.edu.tw |