Zoological Society. 73 
culari ; peristomate simplice, marginibus convergentibus, columel- 
lari subrecedente, leviter arcuato. 
Diam. 24, altit. 12 mill. 
From Abyssinia; collected by Dr. Riippell. 
19. Virrina Ripreiiiana, Pfr. Vitr. testd subsemiglobosd, tenui, 
arcuato-striatd, pellucidd, pariim nitidd, fulvd; spird brevi, ob- 
tusiusculd ; suturd impressd ; anfractibus 3 convexiusculis, rapide 
accrescentibus, ultimo ventroso, basi latiusculo ; aperturd obliqud, 
lunato-rotundatd ; peristomate simplice, margine supero fer an- 
gulatim antrorsum dilatato, columellari substricté recedente, basi 
leviter arcuato ; margine interno anfractuum inconspicuo. 
Diam. 18, altit. 10 mill. 
From Abyssinia; found by Dr. Riippell. 
20. Virrtna Sowersyana, Pfr. Vitr. testd depressd, subauri- 
Sormi, arcuatim plicatuld, tenuissimd, nitidd, pellucida, brunneo- 
Sulvd ; spird vir emersd ; suturd profundé impressd ; anfractibus 
3, primis conveaiusculis, ultimo depresso, peripherid angulato, 
basi convexiore ; aperturd ampld, perobliqud, lunato-ovali, mar- 
ginibus conniventibus, supero vix dilatato, columellari perarcuato, 
angusteé membranaceo-marginato ; margine interno anfractuum 
inconspicuo. 
Diam. 22, altit. 11 mill. 
From West Africa. 
21. Virrina Granpis, Beck MSS. Vitr. testd depressd, tenui- 
usculd, radiatim subtiliter plicatuld, diaphand, non nitente, albido- 
stramined ; spird brevissimd, vix emersd, subpapillatd; suturd 
impressd ; anfractibus 35 rapide accrescentibus, subplanatis, ul- 
timo depresso, peripherid obsolete angulato, basi lato, striatulo, 
nitido ; aperturd pariim obliqud, latd, lunari; peristomate sim- 
plice, margine supero antrorsum subdilatato, columellari subver- 
ticaliter descendente, arcuatim in basalem abiente. 
Diam. 18, alt. 8 mill. 
From West Africa, Guinea. 
22. Virrina aByssinica, Riippell MSS. Vitr. testd depresso- 
ovatd, sublevigatd, diaphand, vix nitiduld, sordid? virenti-corned; 
spird brevi, conveviusculd ; suturd leviter impressd ; anfractibus 
25 convewiusculis, celeriter accrescentibus, ultimo peripherid ro- 
tundato, basi latiusculo ; aperturd obliqud, rotundato-lunari, trans- 
verse dilatatd ; peristomate simplice, margine supero subrepando, 
columellari recedente, arcuato. 
Diam. 10, altit. 55 mill. 
From Abyssinia; collected by Dr. Riippell. 
23. Virrina virENS, Pfr. Vitr. testd depressiusculd, subsemiovali, 
subtilissimé striatuld, nitiduld, corneo-virente ; spird planiusculd ; 
suturd vie impressd ; anfractibus 3 vix convexiusculis, rapide 
accrescentibus, ultimo subdepresso-rotundato, basi anguste mem- 
branaceo-marginato ; aperturd obliqud, lunato-subcirculari } peri- 
stomate tenui, subinflevo, undique regulariter arcuato. 
Diam. 16, altit. 8 mill. 
Locality unknown. 
