†Hamulus howelli Richards 1947
Full reference: H. G. Richards. 1947. Invertebrate fossils from deep wells along the Atlantic Coastal Plain. Journal of Paleontology 21(1):23-37
Belongs to Hamulus according to H. G. Richards 1947
Sister taxa: Hamulus angulatus, Hamulus protoonyx
Type specimen: ANSP 16784, a shell
Ecology: stationary epifaunal suspension feeder
Average measurements (in mm): shell 7.00 x 2.00