Catai^ogue: Ri;CE;NTr,Y Described Moli^usca 131 



Valvata lewIvSi Currier. 



Valvata striata Lewis, Pr. A. N. S. P., 1856, p. 260; non striata Philippi, 

 1836-1844; Binney, L. and F. W. Shells, Pt III, 1865, p. 13, fig. 18'. 

 Vahata lervisi Currier, Kent Sci. Inst. Misc. Pub., 1868, p. 9. 

 Type locality: Little Lakes, N. Y. 



Valvata lewist iielicoidea Dall. 



Valvata leivisi helicoidea Dall, Rep. Harriman Exp., XIII, 1905, p. 123, pi. 



II, figs. 1-2. 

 Type locality not specified. 



Range: "With the type form, to some extent everywhere, but especially 

 toward the Northwest". 



VaIvVATa mergella West. 



Valvata mergella Westerlund, Vega Exped. Vetens. lakt., IV, 1885, p. 209, 



pi. V, figs. 22 a-d. 

 Type locality : Port Clarence, near Bering Strait, Alaska. 



Vai^vata obtusa Drap. 



This European species has been listed from the mouth of the Genessee 

 River, N. Y., by Baker (3, p. 71). 



Vai,.vata pisginalis Muller. 



This European species has recently been found by Latchford (65, p. 10) 

 at Honisher Bay, Toronto, Ont. 



Valvata sincera daniElsi Walker. 



Valvata sincera danielsi Walker, Naut., XX, 1906, p. 28, pi. I, figs. lo-ii. 

 Type locality : Cannon Lake, Rice Co., Minn. 



Valvata sincera nylanderi Dall. 



Valvata {sincera var. ?) nylanderi Dall, Rep. Harriman Exp., XIII, 1905, p. 



122. 

 Type locality: Aroostook Co., Me. 



Valvata terr^-nov.^i Ferussac. 



Type locality: ? 



Specimens under this name are in the Museum of Paris according to 

 Binney (12, p. 430), but it does not appear to have ever been described. 



