160 



eon present; each bounded by a marked ridge; outside of the 

 escutcheon a second radiating ridge extends from the beak to the 

 lower posterior margin of the valves but without producing a 

 notable angulation of the margin. Interior of valves dull white, 

 the muscular impressions and pallial line distinct. Length 2.5, 

 height 1.2, diam. 0. mm." — Dall, Nautilus 25:128. 



Type locality: — off San Diego harbor, Cal., in 16-20 fms. 

 Dredged by C. W. Gripp, in whose honor it is named. 



2250 Rochefortia grippi Dall. 



"Shell small, thin, equilateral, ovoid, with a dull brownish 

 periostracum, more or less incrusted with iron oxide, and sculp- 

 tured only by feeble incremental lines. Beaks inconspicuous, 

 hinge as in the genus, bearing 2 very small diverging cardinals 

 in one valve with a rather strong resilium between them which 

 seems to carry a small lithodesma; opposite valve edentulous; 

 pallial line entire; inner margins of the valves simple. Length 

 4.5, height 2.5, max. diam. 1.3 mm." — Dall, 1. c. 



Type locality and collector same as the last. 



2251 Henderson, Junius: 



Oreohelix colonies in Colorado. Nautilus 25:133 26:9-11. 



2252 Oreohelix hendersoni 



Pilsbry, Nautilus 26:29. Near Longmont, Colorado. 



2253 Sonorella argus 



"Shell small, depressed, flesh-colored, with a narrow brown 

 band encircling the whorls a little above the periphery. This 

 shell approaches very nearly S. Fisheri, Bartsch but differs in color, 

 size, and in having a wider umbilicus. Type measures: Maj. lat. 

 11.3, min. lat. 9.5, alt. 5.7, aperture: maj. lat. 6, alt. 5.3, umbili- 

 cus 2 mm. 2 — Edson, Nautilus 26:37. 



Type locality: — Iron cap copper mine, Argus range, Inyo Co., 

 Cal. (A. M. Strong). 



2254 Epiph. dupetithouarsi cuestana 



Edson, Nautilus 26:37. Cuesta pass, Santa Lucia Mts., Cal. 

 (Hannibal). 



2255 Edson, Henry M.: 



Notes on the validity of Helix (Epiphragmophora) oregonen- 

 sis Lea. Nautilus 26:49. 



Considers E: mormonum as synonymous. Type locality: — 

 Oregon. 



2256 Lymnsea auricularia L. 



Henderson, Nautilus 26:84, records this from Colorado 

 Springs, Colorado. Introduced. 



2257 Oreohelix carinifera 



Type locality: — Garrison, Montana. 



2258 Holospira mesolia 



Type locality: — Sanderson, Texas. 



The last 2 species are described in Nautilus 26:89, by Pilsbry. 



2259 Galba montanensis Baker, Nautilus 26:115. 

 Type locality: — near Ward, Montana. 



2260 Berry, S. Stillman: 



A list of mollusca from the Musselshell valley, Montana. Nau- 

 tilus 26:130. Mentions the following (Nos. 2261-2262). 



