Cyrena compressa- Cytherea subarata
- Polymesoda acuta
- Polymesoda aequilatera
- Polymesoda anomala
- Polymesoda arctata
- Polymesoda caroliniana
- Polymesoda floridana
- Polymesoda fontainei
- Polymesoda fortis
- Polymesoda inflata
- Polymesoda mexicana
- Polymesoda notabilis
- Polymesoda obscura
- Polymesoda ordinaria
- Polymesoda placens
- Polymesoda radiata
- Polymesoda triangula