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Version 45.01 went live on 7th July, 2019.

Bittiolum alternatum

(Say, T., 1822) Shell size 3 - 10 mm Gulf of St Lawrence, Canada - N Carolina, USA
Taxonomic Information
open bookPage/Plate
J. Acad. Nat. Sci. PhiladelphiaVol. 2/2, p 243-244
Audubon - Field Guide to North American ShellsPl. 227; 440
Acad. Nat. Sci. Phil.
Diastoma virginica Henderson, J.B. & P. Bartsch, 1914 : NE USA
Proc. U.S. Nat. Mus.Vol. 127/3, p 411-421; Pl. 14/3
cameraImage Acknowledgments
1 Smithsonian National Museum of Natural History