A new calocaridid shrimp of the genus Calaxiopsis Sakai & de Saint Laurent, 1989 (Crustacea, Decapoda, Thalassinidea) from deep waters off Taiwan

An undescribed species of the rare thalassinidean genus Calaxiopsis Sakai & de Saint Laurent, 1989 was found in samples obtained during a recent deep-sea survey off Taiwan. The new species, Calaxiopsis mclaughlinae n. sp., is unique within the genus in that the rostrum and telson each bear only one pair of spines, and in that the carapace bears a distinct median carina extending from the base of the rostrum to the cervical groove.