20.500.12556/DiRROS-18949 Two new species of Elaphoidella (Copepoda, Harpacticoida) from subterranean waters in Northeast Thailand, with a record of a gynandromorphic specimen and an up-to-date key to Elaphoidella species from Southeast Asia Two new species of copepods of the genus Elaphoidella Chappuis, 1929 were discovered in a cave and a spring in northeastern Thailand. The first species, E. phuphamanensis sp. nov., belongs to species-group VII sensu Lang. It is most similar to E. turgisetosa Petkovski, 1980 in the armament of the male third exopod of the fourth swimming leg and the shape and armament of the fifth swimming leg in both sexes. However, it is easily distinguished from other congeners by the segmentation of the first swimming leg, the endopod of the fourth swimming leg, and the armature of the third exopod of swimming legs 2–4 in both sexes. The second species, E. propecabezasi sp. nov., is located in species-group I sensu Lang, where the male does not have a transformed seta on the third exopod of the fourth swimming leg and the female fifth swimming leg has four baseoendopodal robust setae, unequal in length. It is most similar to E. cabezasi Petkovski, 1982 and E. paraaffinis Watiroyram, Sanoamuang and Brancelj, 2017 in having the same armature formula as endopods 1–2 of female swimming legs 1–4. However, the ornamentation of the anal operculum, the shape of the caudal ramus, and the armature of the fifth swimming leg in both sexes distinguish them from each other. A rare gynandromorphic specimen of E. propecabezasi sp. nov. was recorded, and a revised key to Elaphoidella species in Southeast Asia is provided. cave-dwelling copepods endemic distribution groundwater habitats intersex morphology zoology Southeast Asia jamski ceponožci endemiti podzemni habitati dvospolniki morfologija zoologija Jugovzhodna Azija Canthocamptidae true false true Angleški jezik Latinski jezik Neznano 2024-05-17 13:33:19 2024-05-17 13:33:19 2024-05-23 11:39:39 0000-00-00 00:00:00 2024 0 0 Nasl. z nasl. zaslona; Opis vira z dne 21. 3. 2024; str. [1]-32 [art. no.] ǂ185 iss. 3 Mar. 2023 0000-00-00 Zaloznikova Objavljeno apc 0000-00-00 0000-00-00 2023-03-18 591 1424-2818 10.3390/d16030185 189852931 https://doi.org/10.3390/d16030185 1 445d8d67-1441-11ef-9c9e-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=25977 RAZ_Boonyanusith_Chaichat_2024.pdf RAZ_Boonyanusith_Chaichat_2024.pdf 1 0944D1BAF30BE8FCC9CB8D31FE36B545 f27d27700cd2db32d09028647c063c6a91e2f3218b2b8e792c0a1ecb0b791a2c 90d2f448-1441-11ef-9c9e-001a4af901a5 https://dirros.openscience.si/Dokument.php?lang=slv&id=25978 Nacionalni inštitut za biologijo 0 0 0