122 — 



Testarum novarum i:)rœsertim eurojpœarum diagnoses, 



AUCTORE J. MaBILLE, 



Hélix Arceuthophila , J. Mabille, m sched. 1880. — 

 Testa augustissime umbilicata, siibgioboso-conoidea, 

 subsolida, sat fragili, arcuatim costulato-lamellosa, cre- 

 tacea ac maciilis corneis ornata, quandoque in ultimo 

 anfractu obscure zonulata; — anfr. 5-6, regulariter ac 

 rapide crescentibus, convexo rotundatis, sutura impressa 

 separatis; ultimo majore, non descendente stricte rotun- 

 dato, subtus paululum inflato ad aperturam non dilatato. 

 Apertura parum obliqua, parva, lunato-rotundata, peris- 

 tomate recto, acuto, intus non incrassato nec labiato; 

 marginibus approximatis externo arcuato, columellari in 

 laminam brevem umbilicum non tegentem dilatato. 

 Diam. maj. 6-7""'; min. 5"""l/2-6; ait. 4-4'""4/2. Habitat 

 in sylvam Fontainebleau, dictam. 



Hélix Ycaunica, J. Mabille, in sched. 1880. — Testa au- 

 guste umbilicata, subgioboso-conica, solida, subopaca, 

 nitente, supra purpurascente, subtus sordide albescente 

 ac striis iamellosis albis eleganter ornata, spira conoidali, 

 parum prominente, apice minutissimo, sublsevigato, ni- 

 tido ; — anfr. 4 1/2, parum convexis regulariter crescen- 

 tibus, sutura impressa separatis ; ultimo majore, non 

 descendente, subtus subcomplanato, apertura obliqua, 

 lunato rotundata; peristomate recto, acuto, intus paulu- 

 lum incrassato ; margine externo basalique arcuatis, co- 

 lumellari patulo. Diam. maj. 7'""'; min. 6""" ; ait. k"^"^. 

 Habitat in c'ollibus siccis prope Mailly-Château (Yonne). 



Hélix Prinohila, J. Mabille, in sched. 1879. — Testa au- 

 guste umbilicata, subgioboso-depressa, sordide grisea 

 vel albescente, ssepius cretacea, sat solida, opaca, dense 

 costulato-striata; — spira subconoidea mamillata, parum 

 prominente. apice minute, corneo, Isevigato, nitido; — 

 anfr. 4 1/2-5 paululum convexis, sat regulariter crescen- 



