New record of Urocaridella antonbruunii (Bruce, 1967) from Southern India with taxonomic Keys of Urocaridella Borradaile, 1915 (Decapoda; Palaemonidae) Author Paramasivam, Purushothaman 0000-0001-6318-8598 ICAR-National Bureau of Fish Genetic Resources, Canal Ring Road, P. O. Dilkusha, Lucknow - 226 002, UP, India. PURUSHOTHAMAN PARAMASIVAM https: // orcid. org / 0000 - 0001 - 6318 - 8598 Author Madhavan, Manu 0000-0001-6318-8598 ICAR-National Bureau of Fish Genetic Resources, Canal Ring Road, P. O. Dilkusha, Lucknow - 226 002, UP, India. PURUSHOTHAMAN PARAMASIVAM https: // orcid. org / 0000 - 0001 - 6318 - 8598 & Kerala University of Fisheries and Ocean Studies, Kochi 682506, Kerala, India. Author Ajith Kumar, T. T. 0000-0001-6318-8598 ICAR-National Bureau of Fish Genetic Resources, Canal Ring Road, P. O. Dilkusha, Lucknow - 226 002, UP, India. PURUSHOTHAMAN PARAMASIVAM https: // orcid. org / 0000 - 0001 - 6318 - 8598 Author Lal, Kuldeep Ku- Mar 0000-0001-6318-8598 ICAR-National Bureau of Fish Genetic Resources, Canal Ring Road, P. O. Dilkusha, Lucknow - 226 002, UP, India. PURUSHOTHAMAN PARAMASIVAM https: // orcid. org / 0000 - 0001 - 6318 - 8598 text Zootaxa 2022 2022-05-20 5138 5 563 574 journal article 55452 10.11646/zootaxa.5138.5.4 79effe08-bb61-4212-8b48-089df14fcb44 1175-5326 6571907 37DDA024-1AE5-4974-983B-0FAC1BEAEFC7 Updated Keys to the members of Urocaridella Borradaile, 1915 1 Rostrum with more than 6 teeth dorsally; telson ending narrow triangular structure in posteriorly; mandible with well-developed two-segmented palp; first pereiopod with chela>2.0 times as long as carpus, fingers longer than the palm length; second pereiopod with the length of palm longer than carpus, fingers markedly longer than palm; propodus of third to fifth pereiopods less than four times as long as dactylus......................................................... U. urocaridella — Rostrum with less than or 6 teeth dorsally; telson ending simple triangular form without narrow structure in posteriorly; mandible without palp or a vestige of pale; first pereiopod with chela shorter than carpus, the length of fingers subequal or equal to palm length; second pereiopod with palm length not longer than carpus, the length of fingers less than or sub-equal to palm; propodus of third to fifth pereiopods more than four times of dactylus............................................ 2 2. Third abdominal somite produced posteriorly with a big triangular cap structure overhanging on 4 th abdominal somite; distal end of telson with two pairs of spines................................................................. U. liui — Third abdominal somite produced posteriorly with expanded or sub-rectangular dorsal margin, not overhanging posterior part of the somite; distal end of telson with three pairs of spines.................................................... 3 3. Branchiostegal spine removed from the margin by not more than the length of spine; fifth abdominal somite strongly acute posteroventrally; mandible with a vestige of pale; third to fifth pereiopods with propodus less than 3 ventral spines and one pair of distal spines.............................................................................. U. vestigialis — Branchiostegal spine removed from the margin by more than the length of spine; fifth abdominal somite rounded posterventrally; mandible without palp; third to fifth pereiopods with propodus greater than 3 ventral spines and one pair of distal spines.............................................................................................. 4 4. Third abdominal somite with hump posterior to mid-length and making pleon gibbous...................... U. degravei — Third abdominal somite with rounded ridge medially or with nearly expanded or sub-rectangular posterodorsally......... 5 5. Third abdominal somite nearly subrectangular dorsal profile in posteriorly and compressed laterally; dactylus of third to fifth pereiopods are biunguiculate................................................................ U. antonbruunii — Third abdominal somite with rounded ridge medially or with nearly expanded, not compressed laterally; dactylus of third to fifth pereiopods are not biunguiculate..................................................................... 6 6. Sixth abdominal somite greater than 2.0 times as long as the fifth somite; third to fifth pereiopods with propodus more than 7 ventral spines and propodus greater than 7 times as long as dactylus................................. U. arabianensis — Sixth abdominal somite less than 2.0 times as long as the fifth somite; third to fifth pereiopods with propodus lesser than 7 ventral spines and propodus lesser than 7 times as long as dactylus.............................................. 7 7. Third abdominal somite with prominent, rounded ridge medially, subrectangular in profile; carpus second pereiopod 1.5 times as long as palm.............................................................................. U. pulchella — Third abdominal somite more or less expanded and rounded posterodorsally; carpus of second pereiopod equal to palm length....................................................................................... U. cyrtorhyncha