136 THE NAUTILUS. 



full results to The Nautilus. Locality of specimens and number 

 examined from each locality should be given, as well as the occur- 

 rence of specimens without the notch. Any other notable variation 

 might also be noticed; and negative results, so far as regards the 

 matter of the notch, will be useful. The entire results can then be 

 collated and published in The Nautilus. 



A CONTRIBUTION TO WEST COAST CONCHOLOGY .— Continued. 



BY HENRY HEMPHILL. 



As the original locality, " Santa Barbara," given for Helix kelletti , 

 Fbs., is undoubtedly a mistake, some writers on our land shells have 

 referred that shell to Santa Barbara island, which is equally as erro- 

 neous. Santa Barbara island is about one or one and one-half miles 

 long and perhaps one mile wide, and quite easy of exploration. On 

 my first visit to it, 25 years ago, I was left there alone for seven 

 days, while the vessel went to San Pedro to be cleaned and repaired. 

 During that time I explored every part of the island, collecting the 

 land shells, which was the especial object of my visit. Last August 

 I made another visit to that island for the same purpose, and gave 

 four days more to collecting the land shells, and during these eleven 

 days not a single specimen of Helix kelletti was found, and as dead 

 Helix tryonii may be picked up by the thousands, and as no shell of 

 that description was mentioned in Forbes' report of the " Herald and 

 Pandora " surveying expedition or voyage, during which time the 

 original kelletti was collected, we may reasonably suppose that the 

 vessels of that expedition did not even visit Santa Barbara island. 



It is quite interesting and instructive to note the various opinions 

 thai have been expressed from time to time by distinguished con- 

 chologists on this matter. In the Am. Jour, of Conch., vol. 4, pi. 4, 

 p. 214, 1868, Dr. J. G. Cooper writes: " Kellett's specimens were 

 probably from one of the small islands off the coast of the peninsula 

 (Lower Cab, H. H.), though credited to "Central America," and 

 were a dwarfed form, the species attaining its highest development 

 on Catalina island, within this state (Cat., H. H.), not Santa Bar- 

 bara island, as stated by Newcomb, where tryonii replaces it." 



"Prof. A. Wood found specimens on the summit of a mountain 

 tweHe miles east of San Diego, and at one or two thousand feet ele- 



