196 



REPORT — 1856. 



No. 



Fig. 



27 



30£ 



254 



240 

 240 

 256 



255 



21 



251 



10 



19 



250 



249 



19 



19 



14 



12 



35 



253 



19 



17 



Name. 



Donax Californica {continued). 



= D. obesus, Gld., quasi nov. sp. 



Non D. Calif ornicus, Desh. in Mus. Cum. 

 = D. Conradi, var. jun. 

 Mactra Californica, Conr. — Mus. Gould ... 



planulata, Conr. (Appears to be lost.) 



Petricola Californica, Conr. Journ. Aug. 18 49 ; 

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



Saxicava C, Conr. a prim. man. ; Jay's 

 Cat. 460.— Mus. Gould, Cum. 



= Petricola arcuata, Desh. Rev. Cuv. 

 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 gibba, 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, Sow. 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 gigantea, 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 appeal 

 variable.] 

 Trigonella crassatelloides, Conr 



Subgenus indicated: described Journ. 

 1849, p. 213. 



Trigona crassatelloides, Desh. Cat. Ven. 

 p. 46. no. 1. 



= Cutherea solidissima, Phil. Z. f. M. 1851 , 

 p. 74. no. 100. 



Ci/therea crassatelloides, Jay, 847. Mus. 

 Nutt., Gld., Brit., Cum. 



Locality. 



Sta. Barbara. 

 Sta. Barbara 

 Sta. Barbara & 

 San Diego 



:} 



Sta. Barbara. 



San Diego. 



Sta. Barbara. 



Sta. Barbara & 

 San Diego. 



California and 

 San Diego." 



San Diego and 

 Sta. Barbara. 



Station. 



muddy marshes bare 

 at low water : rare 



one valve. 



one valve. 



one sp. 



buwowing into soft 

 claystone." 



1 foot deep in the 

 sand, common. 



