EF STE IES TOTTI TIN Th SEE ne area “ver en eE tee reyes rae =a 
46.0 PR 
21:0657 Diplodonta sericata Reeve. 
21:0658 Diplodonta orbella Gould. 312. 
21:0659 Divaricella eburnea Reeve. 3132. 
21:0660 Aligena cerittensis Arnold. 
21:0661 Dosinia ponderosa Gray. 137. 
21:0662 Macrocallista squalida Sby. 2145. 
21:0663 Macrocallista orcutti Dall, n. sp. 
21:0664 Chione succincta Val. 723. 
21:0665 Chione undatella Sby. 2322. 724. 
21:0666 Anomalocardia rugosa Sby. 
21:0667 Cyathodonta undulata Conr. 358. 
21:0668 Cryptomya californica Conrad. 102. 
21:0669 Schizothaerus nuttallii capax Gould. 
21:0670 Panope generosa taeniata Dall, n. var. 
21:0671 Cuspidaria (Tropidomya) nana Oldroyd. 
“Shell small and slender; subventricose, the surface sculp- 
ture with numerous fine concentric lines of growth; umbo an- 
terior to middle of shell; anterior portion obese, posterior slen- 
der, prolonged and slightly twisted, not gaping; with a sulcus 
reaching from umbones to rear of shell; hinge with no lateral 
teeth, a small anterior cardinal in right valve, ligament obsolete, 
internal resilium strong, set in a prominent, posteriorly inclined 
resilifer with a strong quadrate lithodesma immediately in front 
of it; pallial sinus short rounded, margins entire; length 25, 
height 13 mm.’’—Oldroyd, Nautilus 32:28 (Jl 1918). Ranges 
to Balenas bay, Cal. (Hemphill). 
Type locality:—Monterey, California. 
21:0672 Olivella biplicata angelena Oldroyd. 
“This var. differs from Sowerby’s type in being more deli- 
cate and slender, with callous not so heavy, spire more elevated, 
sloping more gradually from the middle of shell to apex. Sow- 
erby’s type came from Monterey and does not occur near San 
Pedro living, but is found fossil there in the Pliocene and lower 
Pleistocene. Var. angelena is found fossil in both the upper and 
lower beds of the Pleistocene. Length of type 27, width 13 mm. 
Type in Stanford Univ.’—T. S. Oldroyd, Nautilus 32:34. 
21:0673 Litorina rudis Don. 877. 
Columella rounded, surface marked with many more or less 
developed spiral ridges; colus usually yellowish brown, varying 
from white to black; outer lip sharp and thin; Alaska to Puget 
Sound; has also been called L. sitkana Phil. (878). 
21:0674 GenusLacuna Turton. 
Shell turbinated, thin; aperture semilunar; columella flat- 
tened, with an umbilical fissure. 
21:0675 Lacuna compacta Cpr., 1863. 
Shell compact; spire elevated, subacute; whorls 4, slightly 
convex; body whorl prominently angulated at base; suture im- 
pressed, distinct; aperture ovate; outer liv not effuse, thin; inner 
lip slightly effuse; chink very small, almost obsolete; surface 
faintly marked with very fine incremental lines; length 6 mm, 
diam. 4, aperture 3 by 2. Vancouver. In the Pleistocene from 
Santa Barbara to San Diego; treated as a ? var. of L. solidula 
by Carpenter, 
i 
