IIELIX §. IG. . 91 



ohliqua, Iiinata, transversc oblongo-rotundala; peristomato recto, 

 acutissimo; niarijinc columeliari reQcxiuscuIo, ad inscrlioneni 

 dilatato ac perforationcm levilcr subobtegcntc. — Alt. y/^» 

 diam. 15 mill. » (B.) 



Helix Faidherbiana Boury. in Rev. ct Mag. Zool. 1868. p. 371. 

 t. 14. f. 1—3. 



llabitat propc Tcnez Algcriac (Letourneux). 



204. H. implicata (Nanina) G. Nevill. -{- 



«Testa //. semicerinae Mor. proxime aflinis scd oinnino lae- 

 vigata. Differt praeterca anfractibus magis rotundalis, con- 

 vexioribus, unde carina fere rudimentaria; apice oblusiorc; 

 fascia viridis epidermidis circa umbilicum latior et loco slriga- 

 rum fuscarum juxta suturam fasciac 2 virides, quarum supcrior 

 indistincta et interrupta, altera lata et perfecta. — Dimensiones 

 fere exacte //. semicerinae.y) (Nev. angl.) 



Nanina impUcata G. Nevill in Journ. As. Soc. Beng. XXXIX. 

 Pt. 2. 1870. p. 407. 



llabitat rara in monte Peter Botte insulae Mauritii. 



Obs. Colorafione simWis Naninae argenteae , a qua facilc dislinguilur 

 anfractibus magis deprossis ct concavis, ultimo vix subcarinalo. 



295. H. fragillima (Nanina) Mousson. -f 



«T. perforata, globoso-depressa, fragillima, diaphana, niti- 

 diuscula, pallide cornca. Spira conico-depressa; nucleolo mi- 

 nuto; sutura lineari, tenuiter adnata. Anfr. 4V2, modice accre- 

 scentes, convcxiusculi, obscurc striatuli; ultimus major, non 

 desccndens, supra planiusculus» obtuse scd distincte angulatus, 

 infra inflato-convexus. Apert. subverticalis (1.5*^ cum axi), trans- 

 verse lunato-elliptica. Perist. rectum, acutum, non labiatum; 

 marginibus remotis; dextro supra brevi, infra cum basali longe 

 arcuato; columellari brevissimo, ad pcrforationem punctiformem 

 vix reflexiusculo. — Alt. 8, diam. 1 3 mill. — Rat. aufr. 8 : 3. 

 — Rat. apert. 3:4.» (M.) 



Nanina fragillima (Xesta) Mouss. in Journ. Conch. XVIIL 1870. 

 p. 112. t. 7. f. 3. 

 Habitat Viti-Levu et Kantavu insularum Feejee (Graffe). 



296. H. pudibunda Cox. ^ 



«Testa pcrforata, depresso-turbinata , tenuis, transparens, 

 laevigala, sub lentc subtilissime curvato-hncata et vix conspi- 

 cue spiraliter striata, nitida , rubicunda vel carnca; spira late 

 conoidea, subacuta; anfr. 6, plano-convexi, ultimus anticc non 



