THE 
West American Scientist 
Volume XI. Number s. June, 1goo. Whole Number go. 
WEST AMERICAN MOLLUSCA, | 
OCINEBRA GRACII,LIMA. 
“Shell small, solid, fusiform, slender; spire subacute: 
whorls 6-7; body whorl about two-thirds the whole length. Up- 
per part of whorls subangulate, aperture about as long as the 
spire. Outer lip thickened internally; white, with 4 promiient 
denticles. Columeltlar lip excavated, callous, with a purplish stain 
showing through the enamel. Canal moderate, closed. Sur- 
face smooth, with numerous fine whitish revolving costae, Jutted 
with brown, the interspaces near the outer lip with brown 
linear markings. Upper whorls longitudinally nodosely ribbed. 
General color olivaceous, with patches of yellow. Lon. .5; Lat. 
.25in. MHabitat-—San Diego, California, 10 fms.: Hemphu!l.”-- 
Robert FE. C. Stearns, Conchological memoranda, No. 6 (May 
18, 1871); “.\m ] Conch 7 :— (1871) with f.” 
Under stones. San Diego.—Or U S$ Na mu pr 1885, 535. 
“A few at Point Fermin,” near San Pedro, California, 
fide Mrs. Williamson (U S Na mu pr 15: 215). 
PHOLAS PACIFICA. : 
“Shell, oblong, beaks two-fifths of length of shell from 
anterior end; anterior end of valves triangular, pointed; anterior 
dorsal edge of valves reflected and folded down on the umbos; 
lower anterior margin curved, forming a large elliptic-oval gape; 
posterior end of valves squarely rounded; shell dull chalky 
white, sculptured in concentric lines, which anteriorly are lami- 
