ON MOLLUSCA OF THE WEST COAST OF NORTH AMERICA. 



6^.1 



251. ].ei eta cfecoides 



•252. Gadinia (Rowellia) . . 



253. Fissurella volcano .... 



254. Gljphis aspera 



255. den^iclathrata . . 



250. Lucapiiia crenulata. . . . 



257. Puncturella cucuUata . . 



258. p-aleata 



259. Cooperi 



260. lialiotis Crachevodii . . 



261. splendens 



2i ;2. corrugata 



26.".. rufescens 



20 1. Kamtschatkana . , 



265, Phasianella compta .... 



260. Pomaulax imdosus . . . . 



267. Pachypoma gibberosum 



K utt.' .Tew. 1!. A. I Smiths. Ins. Ken. Lord.'Swan. 



M 



?B 

 D 



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BD 



C 



c 



oc 



c 



c 



p 



p 







c 

 c 

 c 

 c 

 c 

 c 



FDIL 

 DIL 

 D 

 D 

 FI 

 D 

 L 

 M 



P 



?V 

 V 



I 



DI 



D 

 M 



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MI 



MUI 



I 



M 



DI 



MDI 



DI 



MB 



251. Lepeta ccecoides, ?n. s. Like ceeca, but apex turned back. Farallone 1/-, 



teste R. D. Darbishire. 



Family GadiniadeB. 



252. RoivelUa, sp. Genus proposed by Cooper : tentacles flattened^ pectinated. Cat. 



Is. Cp. Far, Is. Row. 



Family Fissurellida. 



253. Fissurella voIcano,'R\Q. = ornata,'^\itt. A.^^voac\es Peruviana : hole variable. 



254. Glyphis aspera, }Lsc\i.= Lincolni, Gray =^cratitia, Gld. Large, coai-sely sculp- 



tured, with colour-rays. 



255. Glyphis densiclathrat'i, Rve. Smaller : with closer, finer sculpture. 

 250. Lucapina crenulata, Sby. Tank., Very large : internal. 



257. Puncturella cucidlata, Gld. E.E. Large, with strong, variable ribs, 15-40. 



Hole simple. 

 25^. Puncturella galeata, Gld. E.E. Scarcely differs from noacliina, but tripartite 



process more strongly marked. 

 259. Puncturella Cooperi, n. s. Outside like galeata, but witliout props to the 



lamina. 30-120 fin. not r. Cp. 



Family Haliottdee. 

 200. Haliotis Cracherodii, Leach, auct. The trade species, smooth, dark olive : holes 



5-9. Var. Californiensis, holes 9, 10, 11. 

 2(}l. Haliotis splendens, Rve. Flatter, grooved, lustrous. Holes 4-7. Below tide: 



on rocks, Qy. 



202. Haliotis corrugata. Gray. Large, arched, very rough. Holes 3-5. Below 



tide : on rocks, Cp. 



203. Hnliotis rufescens, Swain?. Large, flatter, waved, rich orange-red. Holes 



3-5. Below tide : on rocks, Cp. 



264. Haliotis Kamtschatkana, .lonas. Small, thin, arched, waved. Holes 4, &, 



Below tide : on rocks. Far. Is, Cp. 



Family Troehida, 



265. Fliasiaiiella compta, Gld. Otia. Maz. Cat. no. 284. Uike ptdlus, a littlo longer 



and flatter; but operc. bevelled and striated, ry&v. pullindr-:, exactly like 

 Ilerm shells : ? var. elatior, dwarfed, longer and flatter : var. punttuiaia, with 

 close rows of dots ; pillar chinked. 8-20 fm. Cp. 



266. Pomaulax undosus, Wood. Very large : operculum with 2 ridge.^. 



267. Pachgpoma gihherosum, Chem. ?^n<squalej Mart. Large, rough: operc. 



swollen, simple. (Dead.) 



137 



