ON JfOLI.USCA OF THE WEST C^.iST OF NORTH AMERICA. 



G47 



177 b.Tornatma cerealis, G\d. Otia. Small, white, smooth: but probably = worn 

 young culcifella. 



178. Tornafina eximia, Baird, P. Z. S. 1863, p. 67. Size moderate : fold appressed : 



subrectangular. 



179. Tornatina carinata, Maz. Cat. no. 223. 



180. Cylichna ?crjlindracea, Linn. auct. Intermediate specimens, passing rctv) 

 ISOb.Ci/lichna var. attonsa, rounded off' at apex. 



181. CylicJma planata, n. s. Like mamillata, with ape.x flattened-offj and fold distinct. 



182. Cylichna inculta, Gld. Otia. 



1 S3. Volvula cylindrica, n. s. Like grain of rice, pointed at one end. 



Family Ajylysiadee. 



184. Keoplysia Califomica, Cp. Proc. Cal. Ac. 15 inches long. 



185. Navurchus inennis, Cp. Proc. Cal. Ac. Grasses, on shore, Cp. 



Family Fleurophyllidiadts. 



186. Pleurophyllidea Califomica, Cp. Proc. Cal. Ac. Sandy flats, Cp. 



Order Nudibranchiata. 

 187-198. All the new Nudibranchs are described in the Proc. Cal. Ac. Vide attio'if 

 p. 609. Vide also Gld.'s Otia, and Esch. Zool. Atlas. 



Subclass PULMONATA. 



For land and fi-eshwater species, both of Puluionates, Rostrifers, acd BivilTM, 

 vide postea, paragraphs 115-119. 



Family Attricididee. 

 199. Mi-lmnpus olivaceus, Cpr. Maz. Cat. no. 235. 

 20J. I'edipes liratus, Binn. Proc. Ac. N. S. Phil. 1861, p. 333. 



Family Siphonariadce. 



201. Siphonaria Ther sites ^ n. i. Like kitcialis: with strong- lung-rio and obsolete 

 scuiiUiu'e, 



133 



