064 



REPORT 1863. 



481. Ch-ysodomm dints, 'Rre. = inoistis, Gld. = Sitchensis, Midd. Dark liver, with 



spiral grooves. 



482. Chrysodomus rectirostris, n. a. Small, wMte, smooth, with straight canal. 



483. Fastis ambustus, GId. Otia. Close to clavata, Biocchi, from Mediterranean. 



Farallone Is. teste Dai-bishire ; 16 fin. c. Cp. 



484. Macron Kellettii, A. Ad. P. Z. S. 1853, p. 185. Lai-ge, with blunt keels. Dead, 



eOfm. Cat. Is. Cp. 



485. Macron lividus, A. Ad. Small, smooth. 



486. Anachis suhturrita, u. s. Aspect of small Missoina. 20 faint ribs : no spiral 



sculpture. 



487. ?Anachis penicillata, n. a. Small, with Metuloid sculpture. Beach-lOfin. Q). 



Class CEPHALOPODA. Family Argonautid<s. 



488. Argonauta Argo, Linn. auct. Like the Mediterranean form. Hundreds on Sta 



Cruz Is. Cp. 



Family Octopida. 



489. Octopus punctatus, Gabb, Proc. Cal. Ac. 1862, p. 170. S. Clemente Is. Cp. 



Family Loligidce. 



490. Ommastrephes giganteus, D'Orb. Peru. Common at S. Clemente Is. Cp. 



491. Ommastrephes AyresiijGsAihjVxoa.CA.A.c. Hundreds on S. Clemente Is. Cp. 



492. OnychoteutMs fusiformis, Gabb, Proc. Cal. Ac. 18G2, p. 171. " Cape Hora, 



Mus. Ac." S. Clemente Is. Cp. 



113. It remains to tabulate the shells which have been received from 

 special localities, south of the State of California, either by the writer or by 

 the Smithsonian Institution; -vide Br. Assoc. Eep., par. 77. 



The promontory of Lower California has been so little explored, that the 

 existence of a large inland fiord, in lat. 28°, was not known to the autho- 

 rities. It appears that the whales have long delighted in its quiet waters; 

 and those whalers who were in the secret carefully preserved the exclusive 

 knowledge of so profitable a hunting-ground. All that we know at present 

 of the moUuscs of that region is from collections made at Cerros Island, by 

 Dr. Ayres and Dr. Veitsoh. They are mostly shore shells, and are sadly 

 intermixed with an abundance of cowries, cones, strombs, and other clearly 

 Pacific species, which throw great doubt upon those which may be truly 

 from the coast. As it is manifestly a " hotbed of spurious species," nothing 

 can safely be built upon the data, which present a singular intermixture of 

 northern and southern forms. Excluding the Central Pacific importations, 

 the lists stand as follows, the temperate species being distinguished (as in the 

 first Keport) by a *, the tropical by a t : — 



150 



