FAMILLE DES YITRINÆ 
Genre Nanina Gray. 
SECTIONS 
(1) Medyla Alb. 
Syn Vitrinella Gray. 
— Otesia H. et A. Ad. 
(3) Microcystis Bk. 
(2) Paryphanta Alb. 
(9) Euplecta Semp. 
(10) Thalassia Alb. 
(11) Sophina Bens. 
(12) Hemiplecta Alb. 
Syn. Hélicopsis Bk. 
(4) XestaAlb. 
(5) Bensonia Pfr. 
Syn. Rhysota Pfr. 
(13) Rhyssota Alb. 
(6) Macrochlamys Bens. 
(6 a ) Durgella Blfd. 
(7) Eurypus Semp. 
Syn. Tachychlamys Bens. 
— Orobia Alb. 
Syn. Rhyssota Pfr. 
(14) Pachystyla Môrch. 
(15) Oxytes Pfr. 
(16) Ariophanta Desm. 
(17) Thapsia Alb. 
(18) Orpiella Gray. 
(8) Rotularia Môrch. 
(4) Nanina citrina Linné. Les Philippines (Mousson). 
[Syn. Hélix citrina Lin.] 
(12) Nanina semirugata Beck. Pondichéry (Joba). 
[Syn. Hélix semirugata Bk. ] 
(12) Nanina Waandersiana Mousson. Java (Mousson). 
[Syn. Hélix waandersiana Mss. ] 
(12) Nanina Crossei Pfeiffer. Saigon (Vesco). 
[Syn. Hélix Crossei Pfr. ] 
(12) Nanina semigranosa Sowerby. Les Philippines (Joba). 
[Syn. Hélix semigranosa Sow. ] 
(12) Nanina bistrialis Beck. Pondichéry. 
[Syn. Hélix bistrialis Bk. ] 
(12) Nanina Humphreysiana Lea. Sumatra (Duché). 
(12) Nanina Weinkauffiana Grosse. Gochinchine (Lesourd). 
[Syn. Hélix weinkauffiana Crosse. ] 
(13) Nanina distincta Pfeiffer. Saigon (Vesco). 
[Syn. Hélix distincta Pfr.) 
(14) Nanina inver sicolor Férussac. Algérie (M me H ermite). 
[Syn. Hélix inversicolor Fér. 1 
