Patterned Anthurid

Mesanthura astelia

Systematics: Isopoda Family Anthuridae

Distinguishing Characters:
The narrow cylindrical body, up to 20 mm long, comprises a small head, seven similar thoracic segments and a short abdomen ending in a cup-like tail fan. The perforated black spots on the back are characteristic of this species.

Habitat and Distribution:
The patterened anthurid moves cryptically through algae and sponges just subtidally. This species occurs in southeastern states.

General Biology:
This isopod is an active predator that uses its hook-like hands to grasp its prey and its biting mouthparts to make a meal of it. Males have longer antennae and larger eyes than juveniles or females and can swim in search of mates. The Anthuridae and similar families are common and diverse on sandy and muddy sediments and can build tubes.