WEST AMERICAN PYRAMIDELLTD MOLLI'SKS. 



The U. S. National Museum has the l'ollowiu"j material: 



207 



No. of 

 speci- 

 mens. 



Locality. 



Collector. 



Neah Bay, Washington 



do 



Little River, Mendocino County, California. 



Gualala, Mendocino County, California 



San Francisco Bay, California 



Monterey, California 



do 



Catalogue No. 



J. G. Swan 15520 U.S.N.M. 



.... do 46483U.S.N.M 



G. W. Harford 46486 U .S.N.M. 



Stearns collection 101945 U.S.N.M. 



Doctor Ilewston 74006 U.S.N.M. 



Stearns collection I 46482 LT. S.N.M. 



... .do 1 46485 U.S.N.M. 



....do .- ! 46493 U.S.N.M. 



. do I 46489 U.S.N.M. 



do 46491 U.S.N.M. 



P. P. Carpenter I 46476 U.S.N.M. 



W. H. Dall I 159475 U.S.N.M. 



do 159477 U.S.N.M. 



....do 159478 U.S.N.M. 



.do 159479 U.S.N.M. 



-do 



-do 



.do 



.do 



.do 



.do 



.do 



.do 



.do ' 159480 U.S. N.I 



ODOSTOMIA (EVALEA) ANGULARIS Dall and Bartsch. 



Plate 24, fig. G. • 



Odostomia (Evalea) angularis Dall and Bartsch, Proc. U. S. Nat. Mus., vol. 33, 

 1907, p. 523, pi. 47, fig. 2. 



Shell very regularly elongate-conic, subdiaphanous to milk-white. 

 Nuclear whorls small, deeply obliquely immersed in the first of the 

 succeeding turns, above which the tilted edge of the last turn only is 

 visible. Post-nuclear whorls slightly rounded, separated by con- 

 stricted sutures, marked by numerous slender, wav;^", subequal and 

 subequally closely spaced spiral striations, of which about 33 occur 

 upon the last turn between the summit and the periphery. Periphery 

 of the last whorl marked by a slender raised keel, decidedly angulated. 

 Base short, moderately rounded, narrowh^ attenuated anteriorly to 

 reenforce the columella, sculptured hke the posterior portion of the 

 whorls. Aperture o^^ate, very broad, slightly effuse anteriorly; pos- 

 terior angle acute; columella very slender, evenly curved, closely 

 appressed to the attenuated base, with a strong fold at its insertion, 

 which is barely visible when the aperture is viewed squareh'. 



The type has seven post-nuclear whorls and measures: Length 5.6 

 mm., diameter 2.8 mm. It and four additional specimens (Cat. no. 

 150565, U.S.N.M.) were collected by Rev. G. W. Taylor at Nanaimo, 

 British Columbia. 



Five other lots are in the collection of the U. S. National Museum; 

 Cat. no. 159474, one, collected by Doctor Dall at Sitka Harbor, Alaska; 

 Cat. no. 126664, three specimens collected by Dr. C. F. Newcombe at 

 Victoria, Vancouver Island, British Columbia; Cat. no. 43384, one 

 specimen from Puget Sound; Cat. no. 161624, four from Port Har- 

 ford, Cahfornia, collected by Mrs. Merrihew; Cat. no. 196300, one,, 

 dredged by the Bureau of Fisheries steamer Albatross at station 3194, 

 off the Cahfornia coast, in 92 fathoms, gray sand, bottom tempera- 



