16/01/2024
A while since we've posted a "Crustaceans in the News" story - so glad to find this absolutely stunning new species of freshwater crab from Kalimantan (Borneo), Indonesia has just been described - 𝐿𝑒𝑝𝑖𝑑𝑜𝑡ℎ𝑒𝑙𝑝ℎ𝑢𝑠𝑎 𝑚𝑒𝑛𝑛𝑒𝑟𝑖. With a unique tri-coloured carapace, setting it apart from the other 𝐿𝑒𝑝𝑖𝑑𝑜𝑡ℎ𝑒𝑙𝑝ℎ𝑢𝑠𝑎 𝑠𝑝𝑝. Previously imported into the hobby as 𝐿𝑒𝑝𝑖𝑑𝑜𝑡ℎ𝑒𝑙𝑝ℎ𝑢𝑠𝑎 𝑠𝑝. "Blue Borneo" or "Tricolour".
Paywall - https://mapress.com/zt/article/view/zootaxa.5397.2.3
𝗥𝗲𝘀𝗲𝗮𝗿𝗰𝗵 𝗧𝗶𝘁𝗹𝗲
𝐿𝑒𝑝𝑖𝑑𝑜𝑡ℎ𝑒𝑙𝑝ℎ𝑢𝑠𝑎 𝑚𝑒𝑛𝑛𝑒𝑟𝑖 n. sp. (Crustacea: Brachyura: Gecarcinucidae), first record of the genus from Kalimantan, Indonesia
𝗖𝗶𝘁𝗮𝘁𝗶𝗼𝗻
Ng, P. K. L., & Wowor, D. (2024). 𝐿𝑒𝑝𝑖𝑑𝑜𝑡ℎ𝑒𝑙𝑝ℎ𝑢𝑠𝑎 𝑚𝑒𝑛𝑛𝑒𝑟𝑖 n. sp. (Crustacea: Brachyura: Gecarcinucidae), first record of the genus from Kalimantan, Indonesia. Zootaxa, 5397(2), 218–224. https://doi.org/10.11646/zootaxa.5397.2.3
𝗔𝗯𝘀𝘁𝗿𝗮𝗰𝘁
The gecarcinucid freshwater crab genus, 𝐿𝑒𝑝𝑖𝑑𝑜𝑡ℎ𝑒𝑙𝑝ℎ𝑢𝑠𝑎 Colosi, 1920, is known only from Sarawak in northern Borneo, with six recognised species i.e. 𝐿𝑒𝑝𝑖𝑑𝑜𝑡ℎ𝑒𝑙𝑝ℎ𝑢𝑠𝑎 𝑐𝑜𝑔𝑛𝑒𝑡𝑡𝑖𝑖 (Nobili, 1903); 𝐿. 𝑓𝑙𝑎𝑣𝑜𝑐ℎ𝑒𝑙𝑎 Grinang & Ng, 2015; 𝐿. 𝑙𝑖𝑚𝑎𝑢 Grinang & Ng, 2015; 𝐿. 𝑙𝑜𝑖 Grinang & Ng, 2015; 𝐿. 𝑝𝑎𝑑𝑎𝑤𝑎𝑛 Grinang & Ng, 2015; and L. sangon Grinang & Ng, 2015.
The genus is now reported from Indonesian Borneo for the first time, from specimens recently collected from Gunung Kelam in Sintang Regency, Kalimantan Barat Province. 𝐿𝑒𝑝𝑖𝑑𝑜𝑡ℎ𝑒𝑙𝑝ℎ𝑢𝑠𝑎 𝑚𝑒𝑛𝑛𝑒𝑟𝑖 n. sp. has a very distinctive tri-coloured pattern in life, unique among congeners. It can also easily be separated from congeners by carapace, epistome, male pleonal and male first gonopod characters.
𝗣𝗵𝗼𝘁𝗼 𝗖𝗿𝗲𝗱𝗶𝘁
𝐿𝑒𝑝𝑖𝑑𝑜𝑡ℎ𝑒𝑙𝑝ℎ𝑢𝑠𝑎 𝑚𝑒𝑛𝑛𝑒𝑟𝑖 n. sp., colour in life. A–D, holotype male (12.7 × 11.5 mm) (MZB Cru 5713); E, male (12.2 × 11.3 mm) (ZRC 2023.0039); F, female (11.8 × 10.5 mm) (ZRC 2023.0039); G, male (10.5 × 9.8 mm) (ZRC 2023.0039); H, male (8.5 × 8.0 mm (ZRC 2023.0039). A, B, E–H, overall dorsal view; C, subfrontal view; D, frontal view. A–D, Kalimantan Barat, Indonesia [photographs by J. Menner]; E–H, ostensibly Kalimantan Barat, from aquarium trade [photograhs by P.Y.C. Ng].
Copyright © 2024 the Author(s). Published in Zootaxa journal.
