Parathelphusa convexa

The yuyu^[3] (Parathelphusa convexa) is a species of gecarcinucid crab. It is native to Java,^[1] and lives on rice paddies and rivers. They are often preyed upon by storks, ducks, large fish, toads and asian water monitors.

Parathelphusa convexa
Conservation status
Data Deficient  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Malacostraca
Order:	Decapoda
Suborder:	Pleocyemata
Infraorder:	Brachyura
Family:	Gecarcinucidae
Genus:	Parathelphusa
Species:	P. convexa
Binomial name
Parathelphusa convexa (De Man, 1879)
Synonyms[2]
Cancer (Thelphusa) convexus Herklots, 1861 Paratelphusa convexa De Man, 1879 Parathelphusa dentipes Heller, 1862

Description

They have a dark brown trapezium-shaped carapace with three teeth and small eyes, with the third maxilliped closed shut.^[4]

Uses

The corpses of this crab is used as a pest control as its smell attracts Leptocorisa oratoria, which eats rice ears.^[5]