GASTROCOPTA, AFRICA. 121 



trocopts of this group. The columellar lamella is stout and 

 horizontal. 



G. mimula of Ceylon is related, but larger and less regu- 

 larly rib-striate. 



66&. G. klunzingeri senegalensis (v. Maltzan). 



Differs from the type of Abyssinia by having the whorls a 

 little more densely and more delicately costulate ; the parietal 

 fold less distinctly bifurcate, the first and third palatal plicse 

 either weaker or wanting. Length 21/4, diam. li/4 mm. (v. 

 Maltzan). 



Senegal: Nianing, in woods. 



Pupa (Leucochilus) klunzingeri Jick., var. senegalensis v. 

 MALTZAN, Nachrbl. Deutsch. Malak. Ges., xxii, 1890, p. 48. 



67. GASTROCOPTA HERMOSA (Jousseaume). PL 22, fig. 7. 



Shell perforate (perforation subpervious, rather deep, 

 punctiform in the center), very minute, oblong-elongate, sub- 

 diaphanous, fragile, polished, pale corneous. Spire rather 

 produced, tumid in the middle, obtuse at summit. Whorls 5 

 to 6, very ventricose (the upper and median as far as the 

 antepenult, tumid and very much rounded), rather rapidly 

 increasing, separated by a very deep suture. Last whorl 

 rotund, compressed towards the aperture, angular below 

 around the perforation, straight above at the insertion. Aper- 

 ture vertical, subquadrangular-ovate, a little straightened ex- 

 ternally, 3-toothed (one parietal tooth above, strong, very 

 prominent, lamelliform, prolonged to the insertion of the 

 outer lip ; another equally strong on the upper part of the 

 columella; finally a rather immersed denticle in the base 'of 

 the aperture). Peristome acute, patulous, a little thickened 

 within; columellar margin robust, thick and reflected; mar- 

 gins joined by a strong callous. Length 2, diam. 1 mm.; 

 aperture % mm. high and wide (Jouss.). 



Eritrea: Massaua (Jousseaume). 



Vertigo hermosa Jouss., Bull. Soc. Malac. France, vii, 1890. 

 p. 87, pi. 3, f. 14, 15. 



Dr. Jousseaume remarks that this very small shell, found 

 Tinder rubbish in a rock crevice, is very remarkable for the 



