1879.] *OD [Cooper. 



A link connecting fidelis with morrnonum found at the Dalles, Or., seems 

 to me, however, most properly referred to the former. The most northern 

 locality for morrnonum now known is at Shasta, C&l., lat. 41° (nearly), alt. 

 1160 feet, where in the volcanic region Dr. Yates found a very few stunted 

 specimens with hut five and a half whorls and the hristle-granulations of 

 the young very strongly developed. 



H. dupetithouarsi Desh. The figure copied hy Binnej r from Deshayes, if 

 accurately drawn, is larger than any Monterey specimen I have seen, although 

 Deshayes gives that as the locality. It also has two black hands alternating 

 with three light ones, thus appearing more like the variety of fidelis with 

 a light upper surface, while the -character "lighter ahove," also suits that 

 rather than the Monterey shell. As Dupetithouar's expedition visited 

 Uregon, I suspect that Deshayes really figured a fidelis as a hetter example 

 of the species, not having seen Gray's nor Lea's then recent descriptions, 

 just as he overlooked Conrad's of marine species collected by Nuttall in 

 California. 



Still as he gives only Monterey as the locality, the name had better re- 

 main with that species which the description suits (with the exceptions 

 here noted in color and size). 



This confusion may account in some degree for authors confounding 

 with this species others from distant points, and thus giving it an enormous 

 instead of very limited range. Some late authors have also obtained it at 

 second hand from amateur collectors on this coast, who, although getting 

 it directly or indirectly from Monterey, thought it only a finer variety of 

 the banded snails of their own vicinities, and thus gave it as a generally 

 diffused species. 



H. fidelis var. infumuta. Mr. Binney does not refer to the evidences 

 given by me for making this a variety, nor to its ranging 36 miles south of 

 San Pablo Bay. 



H. sequoicola Cp. This local race has characters connecting fidelis, mor- 

 rnonum and dupetithouarsi in about the degrees by which it is distant from 

 their ranges. Mr. Binney's description, from a somewhat faded specimen, 

 differs some from that of the types. Only the young shell is bristly up to 

 five whorls, thus longer than in traskii and morrnonum. His figure of 

 traskii is from a small, probably stunted variety, as it grows a third 

 larger. That of diabloensis is also from an immature specimen, if not a 

 typical ramentosa. The colors of the animal of morrnonum are described 

 by him as different from that seen by me, but as the shells differ much in 

 color, the animals may also in various localities of its long range. (See 

 Proc. Cal. Acad. Sciences, VI, 1876, 18.) 



H. rufocincta Newc. I spent several weeks on Santa Barbara Island, 

 and examined it carefully for helices, finding thousands of some species, but 

 none of this, so that I think the large race mentioned by Binney must have 

 been fromCatalina Island, where alone I found it, varying much in size. I 

 was wrong also in referring the San Diego shell to this, as it has since been 

 generally considered carpenteri. I have before stated the close resem- 

 pkoc. amek. rniLOS. soc. xviii. 104. 2k. printed sept. 18, 1879. 



