Genus:
Karstarma >
Family:
Sesarmidae >
Superfamily:
Grapsoidea >
SubsectionBotany:
Thoracotremata >
SectionBotany:
Eubrachyura >
Infraorder:
Brachyura >
Suborder:
Pleocyemata >
Order:
Decapoda >
Class:
Malacostraca >
Phylum:
Arthropoda >
Kingdom:
Animalia >
Unranked:
Biota >