Abstract
A new species of freshwater atyid shrimp, Caridina ngankeeae sp. nov., is described from Hong Kong, southern China. The dorsally armed rostrum, the large number of spiniform setae on the uropodal diaeresis, the relatively long stylocerite and the distally deeply excavated pereiopod 1 carpus indicate a close relationship with the C. serrata Stimpson, 1860 species group and allied species primarily distributed in southern China and northern to central Vietnam. The new species can be distinguished from congeners by characteristics of the rostrum, pereiopods, and male first and second pleopods.
Reference14 articles.
1. Cai, Y. & Ng, N.K. (1999) A revision of the Caridina serrata species group, with descriptions of five new species (Crustacea: Decapoda: Caridea: Atyidae). Journal of Natural History, 33 (11), 1603–1638. https://doi.org/10.1080/002229399299789
2. Chen, Q., Chen, W., Zheng, X. & Guo, Z. (2020) Two freshwater shrimp species of the genus Caridina (Decapoda, Caridea, Atyidae) from Dawanshan Island, Guangdong, China, with the description of a new species. ZooKeys, 923, 15–32. https://doi.org/10.3897/zookeys.923.48593
3. Chow, L.H., Ma, K.Y., Hui, J.H.L. & Chu, K.H. (2018) Isolation and characterization of polymorphic microsatellite loci for Caridina cantonensis and transferability across eight confamilial species (Atyidae, Decapoda). Zoological Studies, 57, e19. https://doi.org/10.6620/ZS.2018.57-19
4. Chow, L.H., Chan, J.C.F. & Tsang, L.M. (2022a) A synopsis of Macrobrachium Spence Bate, 1868 (Decapoda: Caridea: Palaemonidae) from Hong Kong, with description of a new species. Journal of Crustacean Biology, 42 (3), 1–25. https://doi.org/10.1093/jcbiol/ruac039
5. Chow, L.H., Tsang, L.M., Chu, K.H. & Ma, K.Y. (2022b) Genetic assessment of the rare freshwater shrimp Caridina logemanni endemic to Hong Kong and its hybridisation with a widespread congener. Marine and Freshwater Research, 73 (4), 491–502. https://doi.org/10.1071/MF21192