d'Orbigny, 1836
The shell is greatly reduced and located on top of the visceral mass. In contrast with Carinaria, the cutis is much thinner and the tail lacks a dorsal crest.
Cardiapoda placenta, He 10a , female, right side; He 10b , Cardiapoda placenta, female, left side.
Cardiapoda richardi, He 10c , female, left side.