164 Descriptions of New Species and Varieties of Shells, 



with a broad dark brown stripe anteriorly; white on the lip, 

 with a tinge of rose red behind : finely striate near the end of 

 the last whorl. Inhabits Manchester. 



Var. BiciNCTA. Shell either short and robust, or of medium 

 size and form : pale yellow in the upper whorls and in the lip 

 and behind it; on the back of the last whorl pure white with 

 two brownish black stripes ; otherwise pearl white : with fine 

 striae on the last half of the last whorl. This shell appears 

 to be similar to Dr. PfeifFer's var. y. Inhabits Westmoreland. 



Var. coNciNNA. Shell small but robust : on the back of 

 the last whorl pure white, with a short black brown stripe ; 

 lip white ; otherwise pearl white, more or less tinged with pale 

 yellow, especially on the middle whorls : slightly striated on 

 the back of the last whorl. Inhabits "Whitney River estate in 

 the east part of Manchester. 



Var. siNUATA. Shell not robust and rather thin, with the 

 lip remarkably sinuate: of a dingy pearl white, with, on the 

 last whorl, a fine white line below the suture, and another on 

 the anterior keel ; lip pale red, with a tinge of brown behind : 

 with excessively fine striee on the back of the last whorl. 

 , Inhabits the east part of Portland. 



c. Light colored varieties, not fasciate, and not distinctly 

 striated above the middle whorls. Changes of color the same 

 as in the preceding group. 



Var. RUFiLABRis. Shell more or less robust, but rather 

 thin : pearl white, with a tinge of yellow ; lip vermilion, some- 

 times whitish on the inner side : finely striated on the back of 

 the last whorl. Inhabits Portland. 



Var. ciTRiNA. Shell more or less robust : sulphur yellow ; 

 sometimes pearl white when the lip is pure white ; with a 

 pure white, well defined, narrow stripe next below the suture ; 

 tinged with red at the end of the last whorl : with excessively 

 fine striae behind the lip only. Inhabits Manchester. 



Var. fusiformis, Ad. vide Proc. Bost. Soc. Nat Hist., Jan. 



