Kingdom: Animalia

Phylum: Arthropoda

    Subphylum: Crustacea

Class: Malacostraca

• traditional crustacean head

• 8 thoracic segments, 6 abdominal segments with biramous appendages

• gills on thoracic appendages

Order: Decapoda

• abdominal brooders

• compound eyes on stalks

• carapace fused with thorax

    Infraorder: Thalassinidea 

• thorax compressed laterally

• flattened abdomen, with tail fan

Family: Callianassidae

Genus: Neotrypaea

Species: californiensis