196 



REPORT — 1856. 



Fig. 



27 



30i 



254 



255 



21 



20 



31 



34 



251 



19 



19 



250 



249 



19 



19 



14 



12 



35 



253 



Name. 



Jay's 

 Cuv. 



Donax Californica {continued). 

 = I>. obesus, Gld., quasi nov. sp. 

 Non D. Californieus, Desh.in Mus. Cum. 



= D. Conradi, var. jun. 

 Mactra Californica, Conr. — Mus. Gould 



- planulata, Conr. (Appears to be lost.) 

 PetricolaCalifornica, Cowr. journ. Aug. 18 49 ; 



Desh. Cat. Ven. p. 208. no. 3. 

 Saxicava C, Conr. a prim. man. ; 



Cat. 460.— Mus. Gould, Cum. 

 = Petricola arcuata, Desh. Rev, 



Dec. 1839, p. 358. 

 — carditoides, Conr. Journ. Aug. 1849. 

 Saxicava c, Conr. apr. man. — Mus. Nutt., 



Gld. 

 Non Venerupis carditoides. Lam. An. s 



Vert. vol. vi. p. 164. no. 7 ; Desh. B.M 



Cat. Ven. p. 192. no. 7. 

 = P. Californica, var. teste Nutt. 

 Comp. Petricola cylindracea, Desh. Rev 



Cuv. 1839, p. '358 ; B.M. Cat. Ven. 



p. 208. no. 5. 

 Comp. Petricola gibha. Mid. Mai. Ross. 



p. 57. pi. 18. f. 5-7. 

 Venus lamellifera, Conr. [Rupellaria.] 

 = Venerupis Cordieri, var. /3, Desh. Cat. 



Ven. p. 191.no. 1. 

 = Petricola Cordieri, Desh. Rev. Cuv, 



1839, p. 358.— Mus. Cum., Nutt. 



Gld. 



Tapes tumida, Conr , 



Mysia tumida, Conr. teste Nutt. MS. — 



Mus. Nutt. 



Venus staminea, Conr 



Tapes straminea, Sovs^. Thes. Conch, p. 699, 



pi. 151. f. 151. 

 = Venus dispar, Gld. MS. — Mus. Brit., 



Nutt., Cum. 

 Saxidomus Nuttalli, Conr. [Genus de 



scribed.] Desh. Cat. Ven. p. 188. no. 4. 

 = Venerupis giganiea, Desh. Rev. Cuv. 



1839, p. 359, teste Jay. 

 = Pullastra gigantea, Catl. Conch. Nom. 



p. 41. 

 = Saxidomus giganteus, Desh. Cat. Ven. 



p. 187. no. 2. 

 Comp. Saxidomus Petiti, Desh. Cat. Ven 



p. 189. no. 7; Jay, 481.— Mus. Nutt., 



Cum. [The species described from the 



Californian Saxidomi are unsatisfac- 

 torily made out; depending on dif- 

 ferences in sculpture which appear 



variable.] 

 Trigonella crassatelloides, Conr 



Subgenus indicated : described Jouru. 



1849, p. 213. 

 Trigona crassatelloides, Desh. Cat. Ven 



p. 46. no. 1. 

 = Cutherea solidissima, Phil. Z. f. M. 185 1 



p. 74. no. 100. 

 Cytherea crassatelloides. Jay, 847. Mus 



Nutt., Gld., Brit., Cum. 



Locality. 



Sta. Barbara. 1 



Sta. Barbara. J 



Sta. Barbara & 



San Diego. 



Sta. Barbara. 



San Diego. 



Sta. Barbara. 



Sta. Barbara & 

 San Diego. 



' California and 

 San Diego." 



muddy marshes bare 

 at low water : rare 



one valve. 



one valve. 



one sp. 



San Diego and 

 Sta. Barbara. 



bull-owing into soft 

 clay stone." 



1 foot deep in the 

 sand, common. 



