258 



LAND AND FRESH-WATER SHELLS OF N. 



[part L 



This is not the S. ovalis of Say. That shell having been found 

 identical with S. obliqua, Dr. Gould proposes retaining the name 

 ovalis for this species. 



Animal a little longer than the shell, whitish or 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 eye-peduncles through their length, and 

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

 eye-peduncles, which are rather short, thick at base, attenuated 

 towards the end, bulb distinct ; tentacles short, 

 small, and rather conical. Respiratory cleft 

 near the peristome of the shell, about midway 

 between its centre and its junction with the last 

 whirl. 



Jaw arcuate, ends blunt ; anterior surface 

 with strong vertical furrows, which modify the 

 concave margin. 



Lingual membrane with eighty rows of 

 (40 — 1 — 40) teeth ; teeth small in proportion 



Fig. 457. 



Jaw of Succi'ieci 

 ovalis. [Morse.] 



Fig. 458. 



'"'*'*^^^.^.. 



Lingual dentition of Succinea ovalis. [Morse.] 



to the plates on which they rest ; centrals with three small 

 denticles, laterals bidentate ; uncini serrated. 



Locality. 



Milwaukee, Wis. 

 liliiiois. 

 MiunnsoJa. 

 SinsjSint,'. N. Y. 

 Milwaukee. Wis. 

 Mohawk, N. Y. 



From whom received. 



I. A. Laphara. 



I. A. Lapliam. [land. 

 Rev. R. .T. W. Buck- 

 I. A. Lipliam. 

 Dr .T. Lpwis. 

 W. G. Binupy. 



Remarks. 



Cab. series. 



Succinea liigginsi. Bland. — Shell depressed-oval, thin, obliquely 

 striated, pe'lucid, somewhat shining, pale horn-colored ; spire short, 



