Agnesia de Koninck, 1883

Australian Carboniferous species. Agnesia reticulata n.sp., from Swains Gully.

Remarks. This is the first record of Agnesia in Australia. Agnesiaresembles Hesperiella in having a sinistrally coiled shell, with an inturned protoconch, and moderately wide umbilicus, but differs in having a reticulate ornamentation and the narrow, deep peculiar selenizone. The protoconch of Agnesia has not yet been observed, but because of the inward coiling, as seen in HesperieUa, it is assumed that Agnesia has a hyperstrophically coiled dextral shell.