ox MOI.LCSCA OF THE WE=!T COA«!T OF NOIITH AltF.RICA. 



657 



356. ? Amphithalamus lacunatus, n. s. Same nucleus ; base chinked, not keeled. 



(Adult not found.) 



Family TruncateUidee, 



357. Truncatella Californica, Pfr. Pneum. Viv. Suppl. vol. ii. p. 7. 



Family Jcffreysiadce. 



358. Jeffreysia Alderi, Opr. Maz. Oat. no. 420. 



359. Jeffreysia translucens, n. s. Possibly a Barleeia : pillar thickened, base rounded. 

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



angled, not keeled. 



Family Planaxidts. 



361. Diala marmorea, n. s. Solid, glossy, clouded with red : base faintly angled. 



362. Diala acuta, n. s. Base flattened, sharply angled ; turrited. Bch.-lO fm. Cp. 



363. St-gliferina turrita, n. s. Minute, slender, base rounded. 



Family Ouulidce. 



364. Hadius variabilis, C. B. Ad. Maz. Cat. no. 435. Probibly exotic. 



Family Cyprceid<x. 



365. Luponia spadicea, Q-ray. Like onyx, but light-coloured. 



366. Trivia Californica, Gray. Small : ribs sharp, distant. 



367. Trivia Solandri, Gray. Maz. Cat. no. 441. From Southern fauna. Sta. Barb. 



and St. Nich. Is. common, Cp. 



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



369. Erato columhella, M'ke.=leucophcea, Gld. Maz. Cat. p. 537. Perhaps a var. of 



Mauffercs, from the tropics. 20-40 fm. c. Cp. 



Suborder Toxipbea. Family Tdrebridee. 



370 3fyureUa simplex, n. s. Soulptm-e very faint and variable : shape of albocincta. 

 c. Cp. 



Family Pleurotomides. 

 871. Drillia inermis, Hds. Sulph. Early whirls close sculptured. Beach-16 fm. 



living. Cp. 

 &T2i. Drillia incisa, n. s. Like inermis : spiral sculpture grooved, not raised. 



373. Drillia mcesta, n. s. Like large luctuosa : middle whirls with long transverse 



ribs and posterior knobs ; adidt obsolete. 



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



throughout : no posterior knobs. 

 374 b. Drillia ?va,i: aurantia. Orange, with sutural riblet and faint spiral sculpture. 

 1863. 143 



