Biffarius is a genus of ghost shrimp in the family Callianassidae, containing species formerly included in the genus Callianassa.

Its members are small and generally live in the intertidal zone.

[1] In April 2020, a new species was described from the northeastern Brazilian coast.

[2] Biffarius was named in honour of Thomas A. Biffar,[3] and includes the following species:[4] This Axiidea article is a stub.

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