134 Helix asjjersa in California. 



mens of it "from Bay of Monterey, Cal., as a variety of //. 

 are.olata,''' which latter he refers* to "Oregon, California." 

 This was nndonbtedly a lapsus calami, on the part of the Doctor. 

 The geography is slightly obscure, and neither of the stations 

 are correct; also //. intercisa, W. G. B., an insular species 

 found on the islands off the coast of the southern portion of 

 California proper, is credited by him to "Oregon," in pursu- 

 ance of Binney's error, which the latter author has indicated in 

 his recent volume, f 



Mr. Hemphill wrote to me (in July, 1879) just after his re- 

 turn from the region, "I have Helix intercisa, Binn., and its 

 vars., also small dark and light vars. of H. Kellettii from San 

 Clemente Island." Catalina Island is apparently the metropolis 

 of the latter form. 



San Miguel, Santa Kosa, Santa Cruz and Anacapa, are islands 

 in what is called the Santa Barbara Channel ; while Santa 

 Barbara, Santa Catalina, San Nicolas and San Clemente, are 

 further south ; of these, Santa Rosa, Santa Cruz, and Santa 

 Catalina, are the principal or lai'gest, while San Miguel, San 

 Nicolas, and San Clemente, are farthest from the main land. 



As regards H. Kellettii, Kellett and Wood may have found it 

 on Santa Barbara Island, or on some of the islands in the Santa 

 Barbara Channel, and marked the box "Sta Barbara," without 

 intending to mean the place or town of that name on the main 

 land ; but as Kellettii has not been reported by later and more 

 accurate collectors from Santa Barbara Island, it is far more 

 likely that a variety of Tryoni is really the shell referred to as 

 '' aspersa.^' 



As to H. aspersa, it would be quite absurd even to imply that 

 so excellent a naturalist as Mr. Forbes was not intimately ac- 

 quainted with every aspect and variety of a form so abundant 

 as this, both in England and on the Continent. 



As before stated, its occurrence as above has never been veri- 

 fied; and though a species of cosmopolitan plasticity, in its ready 

 adaptation to new regions, there was no commercial intercourse 



* Am. Jour. Conch., Vol. 11, p. 319. 

 t Vol. V, p. 361. 



