254 CALIFORNIA ACADEMY OF SCIENCES. 



Iii this supplement, Mr. Binney has adopted some of the 

 corrections that I suggested in a review of Vol. V, Terr. 

 Moll., published in Proc. Am. Phil. Soc, XVIII, 1879, but 

 ignores others altogether, possibly because they were not 

 confirmed by specimens at the date of his writing. 



As to distribution, there must be added to species of the 

 Sierra Nevada Macrocyclis sp. (fiportello ?), Mesodon (Colum- 

 bianus?), Arionta Traskii tar. (mentioned as Franhi on p. 

 158, a thin dwarfed form found in Mariposa County, at 

 5,000 to 6,000 feet altitude, and described in Amer. Jour. 

 Conch., V, 205), and Limn r campestris occidentalis. Mr. 

 Binney quotes "Zonites conspectus, Merced County, Cal.," 

 which makes it also a Sierra species (p. 142). 



"Macrocyelis Remphilli" p. 137. From the figure and 

 description this seems to approach the Alaska form which I 

 have mentioned as perhaps "Helix Belcheri,^ Pfeiff., and 

 which is quite as distinct as the several U. S. species. 



"Zonites indentahts," Tp. 139. Dall's species, Hyalina sub- 

 rupicola, would appear quite as well entitled to separation as 

 the above, or many others, and is at least an addition to the 

 West Slope fauna. 



"Z. chersinellus, Dall." This looks quite as much like 

 indentatus as the last, but requires further study. 



"Limaz Heiustoni," p. 146. From my own careful exam- 

 ination of localities north of San Francisco Bay, and south 

 of Santa Cruz down to San Diego, since I described this 

 species, I am satisfied that Hemphill's specimens were 

 chiefly L. campestris occidentalis, except perhaps at Los An- 

 geles, where it was probably introduced with plants. 



"Onchidella Garpenteri," p. 148. The figure of a dry spec- 

 imen cannot be distinguished from a dried Doris and a dis- 

 section is necessary in doubtful cases, such as absence of a 

 jaw indicates. 



