ON MOLLCSCA OP THE WEST COAST OP NORTH AMERICA. 



6r,7 



S56. 



358. 

 359. 

 80J. 



tTd. 

 30:J. 



? Amphithalamm lacutiatus, n. 8. Same nucleus; base chinked, not keeled. 

 (Adult not found.) 



Family TruncateUidce, 

 Tnmcatella Califomica, Pfr. Pneum. Viv. Suppl. vol. ii. p. 7. 



Family Jfffreysiada. 

 Jeffrci/^ia Alderi, Cpr. Maz. Cat. no. 420. 



Jeffrei/.fia transhictns, n. s. Possibly a Barleeia : pillar thickened, base rounded. 

 Cithna albida, n. s. Very close to C. tumetis, Maz. Cat. no. 421, but umbilicus 

 anjrled, not keeled. 



Family Planaxida. 

 Diala marmorea, n. s. Solid, glossv, clouded with red : hase faintly ano^led. 

 Dia'a acuta, n. s. Base flattened, sliarply auf^led : turrited. Bch.-lO fm. Cp, 

 Styliferina turrita, n. s. Minute, slender, base rounded. 



304. 



.^505. 

 ,'50' i. 

 307. 



308. 

 309. 



370. 



Probably exotic. 



Family OculidfP.. 

 Hadim variabilis, 0. B. Ad. Maz. Cat. no. 435. 



Family Cyprmdee. 

 Luponia spadicea. Gray. Like otiyx, but lifrht-coloured. 

 Trivia Califomica, Gray. Small : ribs .^haro, distant. 

 Ti ivia Soliindri, Gray. Maz. Cat. no. 441. From Southern fauna. Sta. Barb. 



and St. Nich. Is. common, Cp. 

 Erato vitellina, lids. Sulph. Large, wide-mouthed : paries callous. 

 Erato columbella, Mke.=/< !<cop^fpa, Gld. Maz. Cat. p. 537. Perhaps a var. of 



Mauyera, from the tropics. 20—40 fm. c. Cp. 



Suborder Toxifera. Family Terehridee. 



Myurella simplex, n. s. Sculpture verv faint and vaiiable : shape of albocincta, 

 c. Cp. 



Family Pleurotomid<e. 



371. Drillia inermis, Hds. Sulph. Early whirls close sculptiired. Beach-16 fm. 



living. Cp. 



372. Drillia inclm, n. s. Like inermis : spiral sculpture grooved, not raised. 



37^5. Drillia mcexta, n. s. Like large luctuoaa : middle whirls with long transverse 



ribs and posterior knobs ; adult obsolete. 

 374. Drillia torosa, n. s. Whirls rounder, olivaceous : with one row of strong bosses 



throughout : no posterior knobs. 

 374 6. Drillia ?var. aurantia. Orange, with sutural rlblet and faint spiral sculpture. 

 1803. 1^3 



