1894. PROCEEDINGS OF THE NATIONAL MUSEUM. . 165 



California" (Nos. 50945, 50946, U. S. ¥. M.). Some individuals are much 

 more globose than others; the juniors of the latter form suggest 

 '■'■pilula;''^ but this last is probably distiuct. To the slenderer form of 

 svjfiatus Dr. Cooper has given the varietal name of insularis, resting on 

 on examples collected by Mr. W. E. Bryant on Espiritu Santo Island. 

 Belding collected the same at La Paz, and a large series from various 

 localities show a regular graduation from one extreme to the other as 

 in many other species of Bulimnlnti. 



BULIMULITS (DRYM^US) ZIEGLERI, Pfeiffer. 



Three examples, hving. Altata ( No. 57227, U. S. N". M.). 



The above bears a very close relationship to B. serperastriis Say, and 

 may prove to be a local variety of that species. The specimens were 

 carried to San Francisco in a cargo of dyewood; their actual habitat 

 is no doubt some distance back from the shore, as Altata is simply a 

 landing and loading place for vessels in the Gulf trade. Mr. Lloyd^of 

 the biological division of the U. S. Agricultural Department, collected 

 three examples of serperasfrus (No. 123595, U. S. N. M.) at Hidalgo, 

 Mexico, m 1889. 



BlILIMULUS (DRVM.EUS) CALIFORNICHS, Reev.-. 



= liulimiis Ctdifoniiciis. Rkkvk, Icon. \(). o7S, ] ><c. 1848. — Pfkh'fkh, Mon. Hel. 

 Viv., Ill, 422. 



One example (No. 50955, IT. S. N.M.). 



This species credited to (Jalifornia by Reeve has always, so far as 

 habitat is considered, been regarded with doubt by west-coast collec- 

 tors and authors, for two reasons; first, the occurrence of any forin of 

 the group resembling Keeve's figure and compatible with his descrip- 

 tion has never been verified either from California proper or the pen 

 insula of Lower California; second, the California of the older authors 

 seems to have been a sort of geographical waste-basket, more conveni- 

 ent than authentic in matters pertaining to distribution. 



That excellent conchologist. Dr. Gould, regarded the above species 

 as identical with Say's B. serperastrls;* it may prove to be the same. 

 Mr. W. G. Binney dissents from ]>r. Gould. Having had occasion to 

 examine and determine several unlabeled specimens from the Gulf 

 region (Stearns collection) I detected a single example of CaUfornicus. 

 The specimen exhibits less color marking than is shown in Reeve's 

 figure, but otherwise agrees satisfactorily. On the testimony of this 

 solitary example, I am of the same opinion as Mr. Binney. 



Snperfainily DITREIVI^^^r.^. 



Family Onchidiid^. 

 ONCHIDELLA BINNEYI, Stearns. 

 Proc. U. S. Nat. Museum, Vol. xvi, 189.3, pp. 342, 343. 



Several examples (No. 58824, U. S. N. M.). San Francisquita Bay, 

 Los Animas Bay, and Angeles Bay, in the Gulf of California. 



Biuuey Teir. Moll. U. S. Vol. in, p. 275. 



