THE NAUTILUS. 



45 



Acteocina 



A. ciilcitella 

 GUI. 



A. cere alts 

 Gld. 



A. cximia Bd. 



A. inculta 

 Gld. 



A. infrequent 

 C. B. Ad. 



A. carinata 

 Cpr. 



A. planata 

 Cpr. 



A. smirna 

 Dall. 



Dall 1 

 Kodiak 



Gould : 



Santa 

 Island to Barbara 



Puget Sound (Col. Jewett) 



(A. cutcitella, Santa 

 Junior) Barbara 



(Col. Jewett) 



Kodiak . . . 



Island to 

 Puget Sound 



Monterey to San Diego 

 Gulf of Calif. 



SantaMonica, . . . 

 Cal. to 

 Panama 



San Diego to ... 

 Gulf of Calif. 



San Diego 



San Diego 



Living 



Vancouver to 

 San Diego 



San Diego 



Vancouver 

 Island 



San Diego 

 Monterey 



Panama 

 Mazatlan 



Mazatlau 

 San Diego 



San Diego to 

 San Salvador 



To this should be added Packard's Molluscaii Fauna from 

 San Francisco Bay (Univ. of Cal. Pub., Vol. 14, 1918, p. 345), 

 in which A. cerealis Gould is listed and the statement made 

 that this is the furthest north that this southern species has 

 been found. Also Zetek's late list of Panama Shells (La Re- 

 vista Nueva, Tomo V, p. 521) in which A. carinata Cpr. is 

 the only member of the genus given. 



Most if not all of the species given in this genus are found 

 living on the bottom, of shallow bays. It does not seem pos- 

 sible that the different species could have the extreme ranges 

 indicated by the different authors. In citing localities they 

 have quoted largely from other writers, and the correctness 



'List of West Coast Shells, Bull. U. S. Nat. Mus., No. 112, pp. 61-202. 

 a Otia conchologica, pp. 184-185. 



5 Catalogue of West North American Shell?, Bull. Cal. State Min. Bur. 

 * Paleontology of San Pedro, Memoirs Cal. Acad. of Sci., Vol. 3, p. 189. 

 5 Manual of Conchology, Vol. 15, p. 187. 



