4. Macrobrachium lamarrei (H. Milne Edwards, 1837)

(Figure 3D)

1837. Palaemon lamarrei: H. Milne Edwards, Hist. Nat. Crustacea, 2: 397.

2013. Macrobrachium lamarrei: Valarmathi & Raghunathan, State Fauna Series, 21: 69.

Material examined: FBRC / ZSI /INV/1722, 6 ex., Godavari River, intake well ITC, Iravandi, Khammam dist. ; FBRC / ZSI /INV/1725, 14 ex., Godavari River, KTPS intake well, Burgampahad, Bhadradri Kothagudem dist .; FBRC / ZSI /INV/1726, 7 ex., Godavari River, Bathing ghat, Bhadrachalam, Bhadradri Kothagudem dist .; FBRC / ZSI / INV/1727, 4 ex., Kinnerasani confluence, Burgampahad, Bhadradri Kothagudem dist .

Diagnosis: Rostral formula; dorsally 1-2 sub distal teeth present with a distinct gap, rest are evenly placed, longer than both 3rd segment of peduncle and the antennal scale; antennal spine and hepatic spine present; 1st chelipeds slender, equal and extending the tip of the antennal scale by chela; 2nd chelipeds equal, slender, chela longer than half but shorter than 3/4th of carpus, palm longer than fingers and with equal thickness; 3rd to 5th periopods similar in structure with simple dactylus; abdomen smooth; endopod of the 2nd pleopod elongated with a pointed end, appendix masculine as long as endopod and 2.3 times longer than appendix interna; posterior margin of telson with ‘T’ shaped pointed median end, 1-2 pairs of setae; uropods exceeding tips of telson, mobile mesial spine of exopod is absent.

Distribution: India- Bihar, Karnataka, Maharashtra, Manipur, Odisha, Rajasthan, Tamil Nadu, West Bengal, Telangana.