FAMILY ENDODONTID.-E 5 1 



replaces this species on Bering Island and in Kamchatka. But when 

 the animals are living P. ruderata shows through the translucent shell 

 deep red or red-brown radiating maculations, which are situated on 

 the mantle. After the shells have been dead some time this macula- 

 tion disappears. Now the living P. cronkhitci do not show any such 

 color-markings. The presence of the latter led Morelet to name an 

 immature ruderata^ Helix Jloccata. The shell figured by von Martens 

 in the Conchologische Mittheilungen under the name of Jloccata does 

 not agree with Morclet's original diagnosis, and was not found by me 

 during much energetic collecting at his locality, Petropavlovsk, Kam- 

 chatka, in 1865. If, as stated by von Martens, it really comes from 

 the original lot collected by Morelet it is evident that his diagnosis 

 (which calls for a shell with an angular periphery like young ruderata) 

 was founded on a mixture, of which young ruderata probably formed 

 a part. But I am inclined to believe that von Martens was misled in 

 regarding the shell he figured to be a native of Kamchatka. 



Pyratnidula pauper Gould was described from the same locality 

 as Morelet's Jloccata, and is undoubtedly the same as the shell I have 

 called ruderata, following Morelet, Middendorff and others. But the 

 P. crottkhitei from Unalaska and other places in Alaska which has 

 been called pauper by Dr. Cooper and others, is our American shell. 

 Mr. Binney thought it different from P. cronkhHei, but after much 

 study and consideration I cannot confirm this opinion. 



Subgenus Planogyra Morse. 

 *Pyramidula asteriscus Morse. 

 Helix asteriscus MORSK, Proc. Boston Soc. Nat. Hist., vi, p. 128, 1857 ; Am. 



Nat., I, p. 546, fig. 43, 1867. 

 Planogyra asteriscus Morse, Journ. Portland Soc. Nat. Hist., i, p. 24, figs. 



51, 52 ; pi. II, fig. 5 ; pi. VIII, fig. 53, 1864. 

 Patida asterisiits Bin.n'EY, Man. ,'\m. Landsh., p. 186, figs. 185, 186, 1885. 

 Pyramidula {Planogyra) asteriscus Pilshrv, Class. Cat. \m. Landsh., p. 33, 

 1S98. 

 Ratige. — Maine; Provinces of Qiiebec and Ontario, Canada; Van- 

 couver Island.^ Tacoma, Wash..' 



This species has been reported from British Columbia and Wash- 

 ington, but it seems the identification is somewhat doubtful, and the 

 shells were probably Punctufn clappi Pilsbry. 



Genus Oreohelix Pilsbry. 



Oreohelix strigosa Gould. 



Helix strigosa Gould, Proc. Boston Soc. Nat. Hist., 11, p. 166, 1846 : Moll. U. 



S. Expl. Exped., p. 36, fig. 41, 1S52. — Binney, L. and Fw. Sh. N. .\m., 



I, p. 72, 1869. 



