194 HELIX 8. 24. 
516. (367. Bombayana Grat. (Coll. Nr. 204.) H. Belangeri Reeve. — 
Nanina bombayana (Xesta) A?. 50. — Bombay. (III. 76.) 
51v. H. infausta W. Blanford. 4| 
«T. aperte perforata, convexo-depressa, pertenuis, fulvo- 
cornea, subtiliter oblique striata; spira convexa, apice distincto, 
sutura vix impressa. Anfr. 6, superne planiusculi, gradatim et 
regulariter accrescentes, ultimus non descendens, depressus, 
supra peripheriam obsolete subangulatus, subtus tumidus. Aper- 
tura obliqua, lunaris, latior quam alta; perist. tenue, margini- 
bus distantibus, callo pertenui junctis, columellari superne ver- 
ticali, breviter triangulatim reflexo. — Diam. maj. 23, min. 20, 
axis 12'/; mill.» (Bl. angl.) 
Nanina (Macrochlamys) infausia W. T. Blanf. Contrib. to Ind. 
Malac. VI. 1866. p. 6. 
Habitat « Annamullay hills» Indiae meridionalis (Beddomej. 
518. H. Bigoti Crosse. 4 
« T. vix perforata, depressa, tenuis, nitida, striis obsole- 
lissimis, subdistantibus longitudinaliter impressa, olivaceo-fulva; 
spira breviter conoidea; sutura submarginata; anfr. 5 vix con- 
vexiusculi, sensim accrescentes, ultimus non descendens, circa 
peripheriam obsoletissime depresso-carinatus, basi leviter con- 
vexus; apertura depressa, lata, oblongo-lunaris; perist. simplex, 
acutum, marginibus distantibus, subconvergentibus, columellari 
supra perforationem fere omnino tectam brevissime reflexo. — 
Diam. maj. 923, min. 49, alt. 11 mill.» (Cr.) 
Helic Bigoli Crosse in Journ. Conch. XV. 1867. p. 210. 
Habitat in insulae Mayotte regione interiore. 
Obs. «Differt ab H. troglodyte Mor., cui valde affinis, colore, numero 
anfractuum, striis longitudinalibus subdistantibus nec concentrice decus- 
satis, apice non subelevato, perforatione minore, apertura magis oblonga, 
peristomate minus recto, marginibus paulo magis convergentibus, carina 
anfractus ultimi mediana obsoletissima et vix conspicua. 
* 
mellari valde obliquo, flexuoso, ad insertionem breviter triangulatim 
reflexo. 
A. Major, depressa, isabellina. (iodophila Mouss. in coll. Diam. 30, 
min. 24!5, alt. 46; apert. long. 16!/, alt. 13!/; mill. 
B. Media, minus depressa, isabellina, peripheria albida; diam. maj. 
28, min. 24, alt. 416; apert. long. 45, alt. 13 mill. 
C. Opaca, minus nitida, ceterum praecedenti similis  ( Madurensis 
Mouss. in coll); diam. maj. 27, min. 21!5, alt. 13; apert. long. 44, alt. 
12 mill. 
D. Minor, valde depressa, laetius flavescens, peripheria candida: So- 
loensis Mouss. in coll.» (v. M.) 
