A new species of Periclimenaeus (Crustacea: Decapoda: Palaemonidae) from Bohol (Philippines)

A new species of sponge-dwelling palaemonid shrimp of the genus Periclimenaeus is described from Tambolian Reef, Bohol, in the Philippines. The new species belongs to the group wherein the dactylus of the third pereiopod has a distal accessory tooth and the corpus has ventral denticles, but the unguis is non-dentate. Amongst this group, the new species is closest to P. apomonosi, P. bidentatus, P. leptodactylus, and P. tuamotae. It can be separated from these species by the combination of the following characters: well-developed dorsal rostral teeth; presence of a supraorbital tooth; presence of a pointed process on the inferior orbital margin; presence of the dorsal anteromedian lobe on the first tergite; presence of a minute acute median process on the distal margin of the telson; and presence of tubercles along the ventral border of the merus and ischium of the second pereiopods. This is the seventh species of Periclimenaeus reported from the Philippines.