MolluscaBase source details
Warren, G.K. (1875). Preliminary report of explorations in Nebraska and Dakota in the years 1855-’56-’57. Reprint. Government Printing Office, Washington. 1-125.
349530
Warren, G.K.
1875
Preliminary report of explorations in Nebraska and Dakota in the years 1855-’56-’57. Reprint. Government Printing Office, Washington.
1-125
Publication
Date
action
by
Pupa nebraskana W. G. Binney, 1875 accepted as Gastrocopta contracta (Say, 1822) (original description)