ic» 
59 TERIOR ees 
21:0807 Bittium esuriens Cpr. (427), 2624. 
‘Like a starved B. filosum, very narrow, the adult scarcely 
seulptured. ‘Santa Barbara, ‘Cal. (Yates); ‘‘‘All along the Coast.’ 
—(Keep). by some considered a-var. of filosum; Bartsch ‘treats 
& 
as distinct. 
21:0808 Boreotrophon Fischer. Subgenus of ‘Trophon. 
. 21:0809 Buecinum corrugatum Rve. Is Amphissa c. 
21:0810 Buccinum fossatum Gld. Is Nassa f. 
21:0811 Bulla adamsi Menke. Is B. punctulata. 
21:0812 Bulla cerealis Gld. Ts Acteocina c. 
21:0813 Bulla :(Akera) eulcitella Gid. Is Acteocina c. 
21:0814 Bulla punctata A. Ad. Is B. punctulata, 
21:0815 Bulla punctulata A. Ad. 
Shell 32 mm -long, 28 high, aperture 32; subglobose, thin; 
spire 0; broadly ovate in front, narrowed posteriorly; -outer lip 
thin, simple, gradually rounded near umbilicus; inner lip and 
columella incrusted; umbilical pit at posterior end, deep, effuse. 
San Pedro, Cal., to Panama. This genus is now Bullus.or Bullaria? 
21:0816 Bulla quoyi ‘Gray. ' 
Shell 8 mm ‘long, 5 high, aperture 8; elliptical, ovate in 
front, somewhat narrowed behind; outer lip thin, angulated at 
posterior end; umbilicus at posterior end deep, not very .effuse; 
columella incrustation covering anterior umbilical region. Santa 
Barbara, Cal., to Baja Cal. 
21:0817 Bulla virescens Sby. Is Haminea v. 
21:0818 Genus Cadulus Phil. 
Shell short, more or less inflated in middle; apical orifice 
entire, circular, with annular suboblique internal plica remote 
from apex. 
21:0819 Cadulus fusiformis Phil. Is C. nitentior Cpr. 
21:0820 Caduhis nitentior Cpr. 
Shell 10 mm long, 1.2 max. diam.; dingy white or lustrous, 
tapering, faleate,' tubular, thin; surface sculptured by numerous 
incremental lines, and sometimes by slight constructions; apert- 
ure circular. San Pedro and San Diego, Cal. (Pleistocene). 
Dredged in numbers from San Diego bay at the foot of Broadway. 
21:0821 Genus Caecum Fleming. 
Young shell spiral in one plane, afterwards an arcuated 
_ tube, truncated posteriorly by loss of spiral ‘portion, and closed 
thereby a convex plug. 
21:0822 Caecum californicum Dall. 211. (C. eooperi Cpr.) 
Length 3 mm, diam. 0.9; plug bent toward convex side; 
aperture circular, slightly contracted; surface with 30-40 prom- 
inent, narrow rounded rings; color dark brown. Santa Barbara 
Island to San Diego, Cal. San Quintin bay, Baja Cal .(Pleis- 
tocene). 
21:0823 Caecum cooperi Cpr. (non Smith). Is C. californicum. 
