266 FERUSSACIA, SECTION PEGEA. 



60. F. BOURLIERI ('Ancey' Westerlund). 



Shell slender, fusiform, fulvous-corneous, very glossy; whorls 

 6, slightly convex, the first three very slowly increasing, pen- 

 ultimate more than twice the height of the antepenultimate, 

 about a third shorter than the last whorl. Suture margined, 

 strongly ascending towards the aperture. Aperture narrow, 

 4 mm. long, produced upward in a very long and very acute 

 angle. Parietal wall slightly convex, obliquely straightened, 

 subsinuous at the straight, vertical columella. Length 7 to 

 7.5, diam. 2.33 mm. (West.) 



Algeria: 35 kilometers east from Boghari. 



Cionella (Ferussacia) bourlieri Ancey in sc. , WESTERLUND, Ver- 

 handl. k.-k. Zool.-Bot. Ges. Wien, xlii, p. 43, 1893. 



" Related to C. debilis Mor." 



Group of F. scaptobia. 



Shell egg-shaped. F. belloiri Letourneux, F. numidica and 

 F. atlasica Bgt., are undescribed Algerian species, mentioned 

 by Bourguignat in his Prodrome de la Malacologie de la Tunisie, 

 p. 117. 



61. F. COSSONI Letourneux et Bourguignat. 



Shell ovoid-oblong, comparatively swollen, very glossy, sub- 

 pellucid, corneous, polished; spire obese, at the summit regu- 

 larly acuminate, yet with a slightly obtuse apex. Whorls 7, a 

 little convex, regularly and slowly increasing to the fifth, then 

 more rapidly increasing, separated by a linear suture, whitish at 

 the last whorl. Last whorl large, half the total length, mod- 

 erately convex. Aperture vertical, irregularly oblong, with a 

 minute parietal lamella within. Columella short, arcuate, sub- 

 truncate below, and in oblique view, showing a very deep-seated 

 tooth above. Peristome unexpanded, whitish, a little thick- 

 ened, the outer margin a little arcuate; margins joined by a 

 thick callus. Length 13, diam. 5, aperture 6.5 mm. (Bgt.). 



Tunis: Djebel Resas and Porto Farina; a var. minor at Djebel 

 Zaghouan. 



F. cossoni L. & B., Prodr. Malac. Tunisie, p. 126. 



