Flattop Crab

Petrolisthes Eriomerus

name: Flattop crab 

Descriptions: They have large pinchers. Blue thumb joints.

Carapace length up to 1.9 cm.Antenna flaggellum is greenish 

greenish green.

Skeleton: Exoskeleton. 

Bilateral symmetry 

Taxonomy

Kingdom: Animelia 

Phylum: Arthropoda

Subphylum: Eumala costraca 

Class: Malacostraca

Order: Decapoda

Family: Porcellaniae

Genus: Pertrolisthes 

Species: Pieronerus 

Ecology

Interesting features- crabs of this species sometimes live 

together in groups of males, females, and young. 

Dominant males doing most of the breading. females have 

little resistance to desiccation.