Morphology of the first zoeal stage of three deep-water pandalid shrimps, Heterocarpus abulbus Yang, Chan & Chu, 2010, H. hayashii Crosnier, 1988 and H. sibogae De Man, 1917 (Crustacea: Decapoda: Caridea)

Abstract

The eggs of three deep-sea pandalid shrimps Heterocarpus abulbus, H. hayashii and H. sibogae are successfully hatched in the laboratory. The first zoeal stage of these shrimps are described, with those of H. abulbus and H. hayashii being reported for the first time. First zoeae of different Heterocarpus species can be distinguished by the spination at the anteroventral carapace, body size, rostral length and appendage setation.