Anisomysis bifurcata W.M. Tattersall, 1912

Yolanda, Rofiza, Ambarwati, Reni, Rahayu, Dwi Anggorowati, Budijastuti, Widowati, Fitrihidajati, Herlina, Kuntjoro, Sunu, Rachmadiarti, Fida & Purnomo, Tarzan, 2023, An annotated checklist of the species of Lopogastrida and Mysida (Crustacea Peracarida) from Thailand and its adjacent waters, Zootaxa 5244 (3), pp. 201-232 : 212

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).