573 REPORT— 1863. 



Ccntr. Am. [The Pacific shells should rank with species 22, if sup- 

 posed distinct. The Hg. is 24, not 23.] 



24. JDione exspiuata, Rve. Ceutr. Am. Distinct, if the others are ; like semilu- 



nif'llosH, without spines. [Appears to be C. rosea, jun. The tig. is 23, 

 not 24.] 



25. I Diotie circinata, Bom. Mazatlan, Mus. Cum. [without authority.] = V. 



28, a, b. I rubra, Gniel.,+ V. Guineensis, Gmel.,+ C. alternata, Brod. [f. 28 repre 

 sents alternata; the other figrures appear to be from West Indian spe- 

 cimen.", thoujrh that ancient locality is not mentioned. Several of the 

 reputed West Coast shells are, however, of the typical form and colour.] 

 33. Dione univolor, Sby., = Chione badiu, Gray, = Cyth. lii/iila, Anton. ^V. Columbia. 

 38. Dione prora, Conr. "Cape St. Lucas, Xautus, California; Carpenter.' 

 [A ^ery distinct form among: the thin inflated species ; only yet found at 

 the Sandwich Is., v. no. 45.] 



45. "(Mus. Smithsonian Institute of N. America.) This shell, from Cape St. 



Lucas, Xantus, California, proves to be the Dione prora (Ci/therea prora, 

 Conr.) of our preceding: plate." [Mr. Sowerby's ligure well represents 

 the unique specimen from Cape St. Lucas, which was taken alive by Mr, 

 Xantus. The quotations in Conch. Ic. would lead to the inference that 

 " Xantus " wius regarded as that part of " California " in which Cape St. 

 Lucas is situated. Both the external and internal character require 

 that a separate name be given to the shell, which stands as Callista pol- 

 licaris, Annals Xat. Hist. vol. xiii. p. 312.] 



46. Cytherea consaiu/iiinea, C. B. Ad. Mus. Cum. Apparently a small spe- 



cimen of a variety of C. Iceta. [Panama. Diffei-s from C. Iceta in inter- 

 nal chiiracters.J 



62. Dione pannosa, iihy.,= Cytherea Mea, 'Koch,+ Callista pucHa, Cpr. Chili, 

 Peru, Mazatlan. [No authoiityfor Mazatlan. The name puvHa girt a 

 to the Cape St. Luca.s specimens was intended as varietal ; although 

 Mr. Cuming regards tlu? Peruvian and Peninsular forms as dstinct. It 

 is not known along the Central American coast.] 



25. Circe nummiilina. Lam. " Central America." [Probably not from the 

 American seas. Admiral Sir E. Belcher is, however, conlident tliat he 

 dredged many well-known E. Indian forms in deep water, oil' San Bia-^.] 



27. Cytherea. In this genus are grouped the Triyonee ; besides the typical species, 

 = Meretr{x, (iray. 

 3. Cytherea crassatvVoides, Conr. " Bay of California." [Not known geogra- 

 phically. The shell is not found in the Gulf, bein^ a most characteristic 

 Californian species. San Francisco, S. Diego, i.*cc.] 



27. Cytherea radiata, Sby., + C. yrnrilior, Sby.,= V. Salanyensis, D'Orb. = T. By- 

 ronensis, (iray. Salango and Xipixapi, 9 fms. sandy mud, Cinniny. 



45. Cytherea nitidula, Lam. Mediterranean. [The figures and descriptions of 

 Sby. and IJve. well represent specimens from Cape St. Lucas, Xatdm. 

 Perhaps not identical with Lam.'s species.] 

 9. Tapes ynitu, Desh. I'hilippines. [May stand as T. Deshayesii, if it be con- 

 ceded that Say's F. yrata ranks best with Ta}yes.'\ 



7. Solarium yraindatum, Lam. Mexico. 



8. ISotarium rerrueosum.VhW. W. Indies. ?z=S. gramdattnn,\RT. 



13. Solarium pforenfida, [live. z= phwentaleAHds. Bay Magdalena, 7 this., Belrhrr. 



19. Solarium qundrir(ps,lli:*. Panama. Young state of same type an sp. 7 and 8, 

 " from same locality (Pan., Mex., W. I.)," but grows much larger. [Tlie 

 Texan shells in Mus. Smiths, are as large as those from Cape St. Lucas : 

 the variations on each coaat are coordinate.] 



63. Klener.- — Tlie following species may be added to the list quoted from 

 « Coquilles Vivuntes," in Hep. pp. 293, 294:— 



Pige. PI. FiR. 



13 2 1 

 15. <-V /> Con»M re<7J»M, Chem.,=sC pnWqM, Ln., W. Mexico. 



100 1 1* I ^"""' Laryilliertiy Kien. Mexico. [Coast not stated.] 



58 



