New Species of Land Snail from California. .317 



in his collection ; specimens are also contained in the typical 

 collection of my friends Binney and Bland, and in my own 

 museum. 



Most authors would regard the above as a distinct and well- 

 marked species ; I regard it (as well as H. Hillebrandi, of New- 

 comb) as a varietal form of Helix Mormonum, to which it is a 

 near neighbor, inhabiting the same region. 



Binney, in his last volume on The Terrestrial Air-breathing 

 Hollusks of the United States, &c, in referring to H. Mormonum 

 (on page 367), remarks : "The specimens lately received from 

 California * * * are singularly granulated on the first one 

 and a half apical whorls, and the epidermis of the next two or 

 three whorls is sparingly ornamented with small but very dis- 

 tinct raised lines or points, something like prostrate hairs, being 

 part of and same color as the epidermis." I have observed the 

 same, but the points are not always epidermidal, but sometimes 

 sculpture the shell as well, and the peculiarity Binney has de- 

 tected is one of the connecting links between the three ; as to 

 the other links, and the special and general relations of the spe^ 

 cies or varieties cited, to others of our California land-snails, I 

 propose to discuss the matter hereafter. 



