Answer : 2. "क्रस्टेशियन"
Explanation :

Researchers from Berhampur University in Odisha discovered a new marine amphipod species, a shrimp-like crustacean, in Chilika Lagoon. Belonging to the genus Parahyla, which has 15 global species in marine and saltwater environments, this brown crustacean is about eight mm long with 13 pairs of legs. In particular, it distinguishes itself from the other 15 species by featuring a stronger strong seta on the propodus of the male gnathopod, the first pair of legs, which is used to capture and feed prey.