CaTaI^OGUE RKCENTI^Y Dl-SCRIBED MOLIvUSCA 117 



Family ANCYUD.F:. 



For a revision of the patelliform genera of this family, see Walker, 

 Ts^o. 160. 



vSuhfamily LANCING Hannibal, 1914. 

 Genus LANX Clessin, ic 



Lanx altus (Tryon). 



Ancylus altus Tryon, Am. J. of Con., I, 1865, p. 230, pi. 22, fig. 15. 

 Type locality : Klamath River, Cal. 



Is probably only a var. of nczvhcrryi according to Pilsbry (95. p. 65). 



Lanx crassus (Haldeman). 



Ancylus crassus Haldeman, Alon., 1844, p. 14, pi. i, fig. 8. 



Lanx kootaniensis (Baird). 



Ancylus kootanicnsis Baird, Pr. Zool. Soc, Lond., 1863, p. 69; W. G. Bin- 

 ney, L. and F. W. Shells, U, 1865, p. 144, fig. 242; Tryon, Mon., 

 1870, p. 227, pi. II, figs. 11-12. 



Ancylus (La-vapex) kootanicnsis Dall, Alaska, XHL 1905, p. no, fig. 82. 

 Is doubtfully referred to L. crassus Hald. as a variety by Cooper (25, 

 p. 100). 



Lanx NEwnKRRVi (Lea). 



Ancylus nczvhcrryi Lea, Jour. A. N. S. P., VI, 1866, p. 185, pi. 24, fig. 116; 

 Obs., XI, 1866, p. 141, pi. 24, fig. 116. 



Lanx nuttallii (Haldeman). 



Vellcttia nuttallii Haldeman, Mon., 1841, pt. 3, p. 3 of cover. 

 Acroloxns nuttallii Binney, L. and F. W. Shells, II, 1865, p. 147. 



Lanx pateeloidks (Lea). 



Ancylus patclloidcs Lea, Jour. A. N. S. P., VI, 1866, p. 185, pi. 24, fig. 117; 

 O'bs., XI, 1866, p, 141, pi. 24, fig. 117. 



Is not a marine species as stated by Tryon (132, p. 230). See Pilsbry 

 (93, p. 60). 



Includes altus Try. and suhrotundus Try. and doubtfully ncivherryi Lea 

 as varieties according to Cooper (25, p. 100). 



