An annotated checklist of the species of Lopogastrida and Mysida (Crustacea Peracarida) from Thailand and its adjacent waters Author Yolanda, Rofiza Author Ambarwati, Reni Author Rahayu, Dwi Anggorowati Author Budijastuti, Widowati Author Fitrihidajati, Herlina Author Kuntjoro, Sunu Author Rachmadiarti, Fida Author Purnomo, Tarzan text Zootaxa 2023 2023-02-20 5244 3 201 232 http://dx.doi.org/10.11646/zootaxa.5244.3.1 journal article 10.11646/zootaxa.5244.3.1 1175-5326 C0EA98E9-2DE2-4B56-B0EB-0E08308923F2 Anisomysis bifurcata W.M. Tattersall, 1912 Type locality. North of Chagos Islands ( W.M. Tattersall 1912 ) . Record from Thailand . South-eastern Andaman Sea, next to Phuket Island ( Fukuoka & Murano 2002 ). Habitat and depth. Marine, depth: 46 m ( Fukuoka & Murano 2002 ) . Distribution. This species is distributed from Chagos Islands and Farquhar Island, Indian Ocean (W.M. Tattersall 1912 ), Andaman Sea ( Fukuoka & Murano 2002 ), Ogasawara Islands, Ishigaki Island, Ryukyu Islands ( Japan ), Panay Island ( Philippines ), Christmas Island ( Western Australia ) (Fukuoka et al. 2002) to Australia ( Lowry & Stoddart 2003 ). Remarks. The species A . bifurcata is close to A. spinata , however, both of these species can be distinguished as follows: in A . bifurcata , (1) the rostrum is narrow; reaches 1/2 of first article of antennular peduncle; covers only broad narrow basal part of eye, (2) antennal scale 5 times as long as broad, (3) exopod of male fourth pleopod extends to proximal 2/5 of telson; first article 4.6 times as long as second; third article twice as long as second, (4) the uropodal endopod has a blunt process that is not articulated at base, and (5) lateral margin of telson armed with 5 spines; while in A . spinata , (1) the rostrum is broad; reaches distal 1/4 of first article of antennular peduncle; covers proximal 1/2 of eye, (2) antennal scale 6 times as long as broad, (3) exopod of male fourth pleopod extends to distal end of telson; first article 2.6 times as long as second; third article shorter than second, (4) the uropodal endopod has a pointed spine that is articulated at its base, and (5) the lateral margin of the telson is armed with 6 spines ( Fukuoka et al. 2002).