First Record of the Thalassinidean Genus Callianopsis De Saint Laurent, 1973 (Decapoda, Ctenochelidae) in the West Pacific, With the Description of a New Species from Taiwan.

Callianopsis anovalis sp. nov. is described from a specimen collected by a deep-sea commercial trawler off northeastern Taiwan at around 300 m deep. The new species is unique in the genus by lacking a dorsal oval on the carapace. The genus Callianopsis De Saint Laurent, 1973 is recorded hereby for the first time in the western Pacific. [ABSTRACT FROM AUTHOR]