- river prawn - large Australian prawn
--1 is a kind of prawn, shrimp
--1 is a part of long-clawed prawn, river prawn, Palaemon australis- long-clawed prawn, river prawn, Palaemon australis - large (a foot or more) edible freshwater prawn common in Australian rivers
--2 is a kind of prawn
--2 is a member of Palaemon, genus Palaemon
--2 has parts: river prawn - long-clawed prawn, river prawn, Palaemon australis - large (a foot or more) edible freshwater prawn common in Australian rivers