[ 70 ] 



Dr. Newcomb states that this species is not Californian or 

 Oregonian, but belongs to a more southern fauna, I have 

 specimens, however, referable to this species, received from 

 Dr. iS^ewcomb, from Bay of Monterey, Cal., as a variety of H. 

 areolata. It is more orbicular than that species, the columella 

 more distinctly tuberculate, and the surface more granulate. 

 The first figure is a copv of that given by Pfeiflfer, while the 

 last represents a fresh and larger specimen. 



7. Polymita varians, Menke. 



Plate H, figures 9-13. 



Globose-conic, solitl, smooth, shining, delicately striate; spire 

 elevated-conic; whorls 5|, convex, the last broadly rounded; 

 aperture small, two-thirds circular, \'\\) expanded a little, thick- 

 ened within, very nearly covering the umbilicus; base con- 

 vex. White, greenish, reddish or brown, sometimes with 

 black or white bands, one or more in number, disposed on 

 difierent portions of the surface, apex and columellar part of 

 the lip always rose-color. 



Diam. 17, height 15 mill. ^«1l rTY: (^,VYr, 



Florida. (From West Indies.) 



TACIIEA, Leach. 

 1. Tachea hortensis, Miiller. 



Plate 6, figures 14, 15. 



Subglobose, smooth; spire conoidal; whorls 5, the last ven- 

 tricose ; aperture rounded-lunar, lip dilated, thickened within; 

 base convex, imperforate. Yellowish, sometimes with one to 

 five revolving dark brown bands. ♦ 



Diam. 19, height 16 mill. "^^ •'^-"''-■' '' ^■'^--^-"^ 



New England States near the sea, and Islands on the coast. 

 (From Europe.) 



