Original Designation of Struthiolaria (Callusaria) by Finlay, 1926, p. 391:
- "For the Struthiolaria callosa Marwick group I now provide the new subgenus Callusaria; it is probably not so distinct as the vermis line is from Struthiolaria s.str., but the four species included by Marwick form a rather compact assemblage, for which a group name is desirable."
Type species: Callusaria callosa (Marwick, 1924)
Callusaria species are
- Beu & Raine 2009. Revised descriptions of New Zealand Cenozoic Mollusca from Beu and Maxwell (1990). GNS Science miscellaneous series no. 27, Fulltext
- Finlay 1926, A further commentary on New Zealand molluscan systematics. Transactions of the New Zealand Institute 5 7: 320-485, Fulltext.
- Marwick, 1924