(Figure 3C)

1844. Palaemon malcolmsonii: H. Milne Edwards, In: Jacquemont Voyage, Inde, 4 (2): 8.

2015. Macrobrachium malcolmsonii: Dev Roy et al., In: Wetland Ecosystem Series, 18: 63-68.

Material examined: FBRC / ZSI /INV/1718, 3 ex., Godavari River, KTPS intake well, Burgampahad, Bhadradri Kothagudem dist.; FBRC / ZSI /INV/1719, 1 ex., Kinnersani confluence, Burgampahad, Bhadradri Kothagudem dist.; FBRC / ZSI /INV/1723, 1 ex., Godavari River, intake well ITC, Iravandi, Khammam dist.

Diagnosis: Rostral formula, more or less equal to antennal scale but longer than antenular peduncle; antennal spine and hepatic spine present; 1st cheliped very short, equal and slender; 2nd cheliped strong, equal and well developed, movable finger covers with dense velvety pubescence in adult, fingers are longer than half of the palm, palm not swollen; 3rd to 5th periopod in structure with simple dactylus; abdomen smooth; telson with 2 pairs of dorsal movable spines and 2 pairs of posterior spines with 12-14 plumose setae, posterior apex exceed the tips of longer posteriolateral spines; uropods exceeding tip of telson, mobile mesial spine of exopod is absent.

Distribution: India - Andhra Pradesh, Bihar, Gujarat, Madhya Pradesh, Maharashtra, Odisha, Punjab, Tamil Nadu, Tripura, Telangana. Elsewhere: Pakistan.