Key to species of the genus Heteronida

1. Body densely granulated, with numerous large granules ......................................... H. ceres sp. nov.

– Body not densely granulated, with minute or small granules ........................................................... 2

2. Rostrum without ridge in midline .................................. H. barunae Baba & de Saint Laurent, 1996

– Rostrum with longitudinal ridge in midline ...................................................................................... 3

3. Branchial region of carapace with distinct elevation. Gastric process prominently high and anteriorly produced ...................................................................................... H. aspinirostris (Khodkina, 1981)

– Branchial region of carapace without elevation. Gastric process low and rounded ........................... .............................................................................................. H. clivicola Macpherson & Baba, 2006