316 COCHLICOPA. 



Stimpson proposed to name the American lubrica as a separ- 

 ate species, neither giving any differences. Later, Morse at- 

 tempted to find differential characters ; 'but in large series the 

 supposed differences disappear. 



Two specimens of 8. lubrica are reported by Dr. Jousseaume 

 from Venezuela, collected by M. Simon, the well-known aran- 

 eologist. One, a young shell, from Caracas, the other, adult, 

 from Tovar. Dr. Jousseaume thinks that they may have been 

 imported on plants. 



la. C. LUBRICA MORSEANA (Doherty). PI. 49, fig. 42. 



"Shell cylindrical, slender, thin, transparent, highly pol- 

 ished, reddish-brown, with slight, irregular lines of growth; 

 whorls 5^2> flattened, the last nearly one-third the length; 

 suture little impressed; apex very obtuse; aperture oblong- 

 ovate, widest near base; peristome scarcely thickened; red- 

 dish ; umbilicus closed ; columella perpendicular, meeting base 

 of peristome at something less than a right angle. Foot white, 

 almost translucent; head grayish, with short tentacles. 

 Length 7 mm. sometimes more ; diam. 2 mm., aperture 2 mm. 

 long." (Doherty.) 



Ohio: Hamilton Co., Kentucky: Kenton Co., Tennessee: 

 Blount Co., N. C. 



Cionella (Zua) morseana DOHERTY, Quarterly Journal of 

 Conchology i, 1878, p. 342, pi. 4, f. 2.Cochlicopa lubrica 

 morseana Doh., PILSBRY, Nautilus xi, p. 127. 



This form resembles the var. columna Clessin of middle 

 Europe. It differs from C. lubrica chiefly by its narrower 

 shape, the whorls of the spire being longer, the last one 

 shorter; moreover, the callous rim of the outer lip is much 

 thinner and narrower in morseana. A specimen from Laurel 

 Creek Gap, Blount Co., Tenn., is figured, pi. 49, fig. 42. It 

 measures 7 x 2.2 mm., length of aperture 2.3 mm. ; whorls 

 5%. very rapidly increasing in width. The aperture is 

 quite oblique. 



The Cochlicopas of the higher ranges and peaks of the 

 southern Alleghanies, from Roan Mt. southward, are closely 

 related to morseana, yet may be separated as a mountain 

 race, as follows. 



