ON MOLLUSCA OP THE WEST COAST OF NORTH AMEraCA. 5C3 



PI. Patella NuttaUiana. [Mus. C\\va..^=:A. pelta, typical. The figure looks more 



like pafinn.^ 

 I4O. Patella mnmillata, Nutt. [non Esch., is an elevated, stunted form of the black 

 ? var. of scabra, Nutt. The name being preoccupied, this distinct form may 

 stand as Uniatiihf]. 



64. Fissurella densidathrata [is distinct from O. aspera. Sta. Barbara, Jeivett']. 



67. Turbo marginatus [Rve., non] "Nutt." [is a Pacific species, quoted by Messrs. 

 Adams as the Colloma inarginata of Gray ; but that is a Grignon fossil, olim 

 Delphiunla (teste type in Brit. Mus.). The Nuttallian sliell, published in 

 Jay's Cat., was described by A. Ad. as Chlorosfoma fimebrale=- Chi. mastum, 

 auct. (non Jonas, the true T. mcestus being S. American, teste A. Ad. and 

 Mus. Cum.)]. 



39. Cypraa onyx [is tUe E. Indian, C. spadicea the similar S. Diegan species]. 



The following species, either quoted from the W. Coast, or known to in- 

 habit it, or connected with it by synonymy, have been observed in lleeve's 

 'Conch. Ic' since the date of the last Report. The number of the species also 

 refers to the figure. For the remarks encbsed in [ ] the writer of this lie- 

 port, here as elsewhere, is alone responsible. 



56. Fusus turbinelloides, Rve., Jan. 1848. PAfrica, Mus. Cum. \_ = Sqylionalia 

 pallida, Br. and Shy. : spines somewhat angular]. 



62. Fusus cancellatus, Lara. " Unalaska, Kamtschatka, Mus. Cum." [Doubtless 

 the origin of the prevalent localitv-error]. 



':(}. Fusus Nov<B- Holland ice, Rve., Jan.' 1848. N. Hoi., Metcalfe. [As Mr, Met- 

 calfe gave numerous West Coast shells to Brit. Mus. under locality "N.H.," 

 this shell also was probably from W. Mexico, = i^. Dupetithdaarsii, Kien.] 



91. Fusus Gunneri, hov. , (Tritonium), Ind. Snec. p. 12. Greenland. [=Tro- 

 pkon multicosfatus, Esch. The tig. sliould be 90, b ; f. 9\ = Pn)n^ns.'\ 



52. Cardium pseu^ofossile, Rve. " P.' Z. S. 1844." Hab. ?— [Not found in 

 P. Z. S.,= C. Califoniiefise, Desh., 1889, non C. Californianum, Conr., 

 1837. This is the Eastern form ; the C'£.^ifornian ?var.= C. blandHm,G\A..^ 



67. BHccinum 7nodtficattun, Rve., Dec. 1840. Hab. ? — [Agrees sufficiently well 

 with worn specimens from La Paz, Mus. &\m.t\\s>., = Siphonalia, closely 

 allied to ^rt//«V/fl.] 



62. Baccinnm dirum, Rve., Dec. 1846. Hnb.? — Mus. Cum. [Worn specimen 



of Chrysodomus Sifche7isis, Midd., 1849,= i^. incisus, Gld., May 1849.] 

 110. Buccinum corniyatum, Rve., Feb. 1847. Hab. ? — [" Ivuncnria,'" Cuming, 

 MS. " Pisania,''^ H. Adams. Vancouver, most abundant.] 

 2. Sanguinolaria oralis, Rve., March 1857. Cent. Am. ['r' = <S'. miniata, jun. 

 3. iS". if/Zmo/fZf's, A.Ad., is the same, adolescent; 5. S. purpurea, Desh., adult.] 

 4. Psammobia maxima, Desh., P. Z. S. 1854, p. 317. Panama. [Closely resem- 

 bling Ps. rubroradicda, Nutt. Puget Sound.] 



19. Jlyfilus palliopunctatus, Dkr. Cal. and Mazatlan. [No authority for Cal.] 



41. Mytilus bifurcntus, Com-., J.A.N. S. Phil. Hab. ? [Conr. assigns his Nuttallian 

 species to California ; but it is the common Sandw. Is. species, teste Pse. 

 The Californian shell, with the same sculpture, is a Septifvr, and is the 

 S. bifurc.atus of Mus. Cum.] 



44. Mytilus Sallei (Dreissina), Reel. Central America. [? On which slope.] 



52. Mytilus Cumingianus, Reel. Panama. \_Septifer.'] 



60. Mytilus glomeratus, Gld. Hab. ?—* [Gould's species is from California, but 

 the name is attached to a very different shell in Mus. Cum.] 



* Several species occur in the recent monographs ■without locality, which are well 

 known to mhabit the W. Coast. This is partly due to the writer not thinking it neces- 

 sary to refer to published books for information, and partly to the changes which have of 

 late years been made in the principal authority, viz. the Cuniingian collection. By the 

 redistribution of species into the modern genera, the student is greatly aided in his search 

 for special forms ; but, for the sake of uniformity, the autograph labels of collectors or 

 ilescribers of species are generally rejected, the names being either in tlie liandwrituig of 

 the clerk or from the printed index in the monograph, and representing only the judg- 

 ment of the latest worker, which may or may not be correct. Synonyms, whether real 



4 49 



