SUCCINEA. 79 



amber-colored, and translucent, with minute black dots, 

 scattered and in clusters of dots upon the surface, most 

 frequent upon the head and upper part of neck. Foot 

 free from dots. A black line running from the ocular 

 points of the tentacles through their length, and along 

 the sides of the neck to the shell, marking the sheath of 

 the tentacles. Upper tentacles rather short, thick at 

 base, attenuated towards the end, bulb distinct; lower 

 tentacles short, small, and rather conical. Respiratory 

 cleft near the lip of the shell, about midway between its 

 centre and its junction with the last whorl. 



Shell. Ovate, somewhat conic, very thin, pellucid, 

 watery horn color, sometimes tinted roseate ; periostraca 

 shining, very minutely striate ; whorls three, the last 

 compressed and elongate when viewed above ; spire 

 short but acute ; suture impressed ; aperture produced 

 by a deep truncation of the shell, elongated, more than 

 three-fourths the length of the shell, patulous, expanding 

 anteriorly, exhibiting the interior of the volutions. When 

 viewed on the side of the aperture, the conical shape of 

 the shell appears, the broadest part of the cone is below 

 the centre of the aperture, and it tapers gradually to 

 the apex. 



Extreme length about half an inch. 



Geographical Distribution. It is diffused abund- 

 antly through the northern and north-eastern States. 



Remarks. This is not Succinea ovalis, Say. It 



