88 LAND AND FRESH-WATER SHELLS OF X. A. [PART IL 



termination of the outer lip, peristome adherent, somewhat arched, acute, 

 with a reddish callus within. Height 7;, breadth 4 : aperture 5 ' long. 



To the young of this species, or a variety, I refer a shell ot which three 

 specimens were sent to me from the Stuttgard Museum, as Pli. hetero- 

 stropha. The shell is almost transparent, rather less ventricose, very 

 shining, but corresponds witli the above description in the form of the 

 mouth, the axis, the reddish callus within the lip, and the curved reticu- 

 lations. Height 5.}, breadth 3 ". (Fig. 5 is six times the natural size.) 



Ilab. North America. (^Kiister.) 



F/njaa injlata, Lea, whose description is given below, appears 

 to me a synonym of Ph. Jieterostropha. Fig. 152 is drawn from 

 liis type. 



Physa inflata, Lea. — Shell inflated, dark, somewhat pellucid ; spire some- 

 what elevated, acutely conical ; whirls five ; outer lip margined and in- 

 flated ; aperture wide. 

 Fig. 152. Hub. Virginia, between the Salt Sulphur anfl the Sweet 



Springs : Ph. Kicklin. My cabinet, and cabinet of Mr. Nick- 

 lin. Diam. .48, length .65 of an inch. 



Two specimens were taken by Mr. Nicklin in a small stream 

 which crosses the road in a gap in the main chain of the Alle- 

 ghany Mountain between the Salt Sulphur and the Sweet 

 Springs in Virginia. The gap is nearly level for several miles, 

 and some of the streams run to the west and some to the east. 

 This species seems to me to differ from any with which I am acquainted. 

 It is perhaps most nearly allied to P. heterustropha (Say), but has a shorter 

 aperture and is more inflated. {Lea.) 



Dr. Gould tells me that a specimen of Ph. heterostropha in 

 the Garden of Plants is labelled Fh. arctistropha, Jan. Yilla 

 (Disp. p. 32) quotes Ph. cubensis, Pfr., as a synonym of Fh. 



heteroi^tropha. ^ 



