TRUNCATELLINA OF ABYSSINIA. 87 



"The palatal fold is less deeply placed in the mouth and 

 weaker in P. strobeli. 



"In the width of the perforation P. claustralis agrees with 

 P. lardea better than strobeli, but in claustralis the coluinel- 

 lar and palatal folds are deeper in the niouth, especially the 

 latter. 



"P. salonensis [salurensis] Reinh. is at once separable by 

 its finer longitudinal striation" (Jickeli). 



19. TRUNCATELLINA SCHILLERI (Jickeli). PI. 9, figs. 14 to 18. 



The minute shell is narrowly perforate, cylindric, a little 

 contracted towards the base, brown, with an oily luster, orna- 

 mented with moderately strong, close, oblique longitudinal 

 ribs. The 6 convex whorls increase regularly and are parted 

 by a rather deep suture ; last whorl is somewhat compressed 

 towards the base and rises a little in front. The aperture is 

 hardly oblique, ovate, a little impressed on the right side, 

 and three-folded : on the parietal wall, deep within, a denticle 

 stands which is continued inward as a rather low fold. The 

 slightly curved columella has a tubercular tooth, visible only 

 by turning the shell; likewise the palatal tooth is only seen 

 by turning the aperture. The peristome is white, thickened 

 and slightly reflected, the terminations converging. 



Length 1%, diam. 1, alt. apert. %, width y 2 mm. (Jickeli). 



Abyssinia: Eujelal, Habab Mts., 7995 ft. (Jickeli). 



Pupa schilleri JICKELI, Nova Acta, vol. 37, 1875, p. 125, pi. 

 5, f. 15. 



"P. schilleri differs from the preceding species by the more 

 contracted base, narrower umbilicus, closer and finer longi- 

 tudinal ribbing, a weaker and more deeply placed parietal 

 lamella ; also the columellar fold stands deeper, and the pala- 

 tal fold, which is visible in P. lardea in a direct front view, 

 can only be seen in P. schilleri in a strongly oblique view in 

 the mouth. 



"It agrees with P. strobeli in the umbilicus and longitu- 

 dinal striation more than with the preceding species, but 

 differs by the positions of columellar and palatal teeth. 



"From P. salonensis [salurensis] Reinh. it differs by the 

 stronger ribbing" (Jickeli). 



