New records of the crangonid shrimp genus Metacrangon Zarenkov, 1965 (Decapoda: Caridea), from the south of Java, eastern Indian Ocean, with description of a new species Author Komai, Tomoyuki Author Chan, Tin-Yam text Raffles Bulletin of Zoology 2020 2020-04-30 68 326 333 journal article 10.26107/RBZ-2020-0026 2345-7600 4577277 8F396044-E58D-4582-9A50-262AE353B9FD Metacrangon punctata Komai, 2012 ( Fig. 4 C–E) Metacrangon punctata Komai, 2012: 17 , figs. 5–7, 43 ( type locality: Banda Sea , Indonesia , 1,058–1,084 m ). Material examined. SJADES, stn CP 13, S of Java , 06°00.52′S , 104°49.41′E to 06°00.83′S , 104°49.43′E , 1,259–1,268 m , 26 March 2018 , beam trawl, 1 ovigerous female (cl 12.9 mm ), ZRC 2019.1873 ; stn CP 18, S of Java , 06°10.76′S , 105°05.59′E to 16°11.59′S , 105°05.74′E , 1,060–1,073 m , 26 March 2018 , beam trawl, 1 male (cl 7.4 mm ), 1 ovigerous female (cl 12.5 mm ), ZRC 2019.1874 . Colouration in life. Body generally whitish; carapace with tinge of purplish brown anterodorsally; pleon mottled with purplish brown markings at least on pleomeres 3–5, pleomere 6 semitransparent; cornea brownish, reflective; antennular and antennal peduncles purplish brown; pereopod 1 whitish, semitransparent; pereopods 4 and 5, pleopods and uropods generally purplish brown ( Fig. 4 C–E). Distribution. Previously known from the Banda Sea ( Indonesia ), Papua New Guinea , Solomon Islands , and New Caledonia , at depths of 670–1,135 m . The present specimens came from the south of Java , Indonesia , at depths of 1,060 –1,268 m , extending the geographical range of the species to the eastern Indian Ocean. Remarks. As Komai (2012) argued, M. punctata can be assigned to the “ M. jacqueti ” species group, characterised by the greatly enlarged anterior middorsal spine on the carapace at least partially overhanging the rostrum, the possession of a ventral marginal tooth on each pleonal pleuron 1–3, and the marginally setose dactyli of the pereopods 4 and 5. The southern Java specimens agree well with the type material, particularly in the punctate branchial region of the carapace ( Fig. 4 C–E), one of the characteristics of M. punctata .