ox 5I0LLUSCA OF THE WEST COAST OF NORTH AMKRICA. 



CGi 



427. 

 428. 



429. 

 430. 



481. 

 432. 



433. 



434. 



435. 

 436. 



437. 



433. 



489. 



440. 



441. 

 412. 



443. 

 444. 



Trichotroins cancellata, Hds. Sulph. Sculpture strong, open. Ejjidermis bristly. 

 Trichotropis inermis, Hds. Sulph. Sculpture faint : not bristly. 



Family Velidinidce. 

 Velutina l<Bvigata, Linn. Fbs. & Haul. Exactly accords with Britisb speci- 

 mens. ? = Kamtschatkana, Desb. 

 Velutina prolongata, n. s. Spire very small. Labruni produced in front. 



Family Naticid<s. 

 Natica clausa, Brod. & Sby. Umbilicus closed. Operc. shelly. Circinnboreal. 

 Lunatia Lewisii, Gld. E. 'E.=^herculcea, Midd. Whirls flattened behind. Abiui- 



dant on beach, Cp» 

 Lmiatia pallida, ^v. & Shj. = caurina-\-solufa, Gld. Globular, compact, whitish. 



Boreal. 

 Neverita Recluziana, Petit, Eve. Large, solid, raised, with brown grooved 



liunp on pillar. Also Guaymas. 



Family Tritonidfe. 

 Priene Oregonensis, Eedf. Like canceUata, but coarser sculpture. 6fm. Lyall, 

 Ranella Californica, Hds. Sulph. Scarcely differs from tine specimens of It, 

 ventricosa, in Mus. Cimi. 



Family Fasciolaridce. 

 Mitra maura. Swains. Nutt. = orientalis. Gray = ' Chilensis, Gray,' Kien. Very 

 dark and plain. Peru. Sand between rocks, 1. w. Cum. Peru. 



Family MarginelUda. 

 Marginella Jeicettii, Cpr. P. Z. S. 1856, p. 207. Like the Mogador species, 



somewhat shorter and broader. 10-20 fm. Cp. - 

 Marginella subtrigona, n. s. Shape of Erato colwnhella. 

 Marginella reqidaris, n. s. Between Jeivettii and minor, C. B. Ad. Maz. Cat. 



no. 587. Beach-20 fm. Qj. 

 Volutella pyriformis, n. s. Genus of Swainson (not D'Orb.) = Closia, Gray, 



like V. margaritula, Maz. Cat. no. 589, but produced in front. 

 Voivarina varia, Sby. C. S. Lucas, W. Indies. 



Family Olividce. 

 Olivella biplicata, Sby. Taxik.= glandinaria, Nutt. Nut-shaped. 

 Olivella bcetica, n. s. Narrow, dull, thin : has been erroneously called atiazoraf 

 tergina, petiolita, and rujifasciata. 



147 



