HELIX g. 92. 117 
spira convexa; sutura rufulo-marginata; anfr. 6 convexiusculi, 
lente accrescentes, ultimus non descendens, subtus convexior; 
apertura obliqua, lunaris; perist. simplex, rectum, margine 
columellari leviter arcuato, ad perforationem apertam triangu- 
latim reflexo. — Diam. maj. 26, min. 23, alt. 44 mill. (Mus. 
Cuming.) 
8. Major; diam. maj. 35, min 31!/, alt. 17 mill. 
Helio Mouhoti Pfr. in Proc. Zool. Soc. 1860. p. 36. t. 50. 
E^5- (Malak" "BP "VIE^p- 2937 
Nanina Siamensis var. Mari. Ostas. Zool. IL. p. 71. 
Habitat Siam (Mouhot). 
* 
481. (345. vitellina Pfr. —  Nanina vitellina (Xesta) A?. 54. — 
Ariophanta vitellina Mürch in Journ. Conch. XIIL p. 379. — 
Mont. Nilgherries. (III. 72.) 
482. (34c.) ligulata F'ér. (Coll. Nr. 187.) Nanina ligulata (Xesta) A?. 
50. — Bengalia. (I. 74.) 
488. H. renitens Morelet. 4 
«T. subperforata, ^orbiculato - convexa, tenuis, fragilis, 
translucida, nitidissima, fulvida, tenere striata et sub lente 
exilissime spiraliter impressa; spira parum elevata, obtuse co- 
noidea; anfr. 5 parum convexi, sutura violaceo - marginata 
disereti; apertura obliqua, lunari-ovalis, intus margaritacea; 
peristoma simplex, rectum, tenue, margine columellari juxta 
perforationem strietissime reflexiusculo. — Diam. maj. 22, min. 
20, alt. 10'/, mill.» (M.) 
Helio renitens Mor. in Journ. Conch. IX. 1861. p. 45. 
Habitat in insula Mayotte Comorensium. 
484. H. Choinix Benson. | 
«H. testa. perforata, vix conoideo-depressa, tenui, oblique 
striatula, stris exilissimis spiralibus confertissime decussata, 
superne fusco-cornea, subtus pallidiore, translucente; spira 
subconoideo-planulata, apice vix elevato, obtuso, sutura leviter 
impressa, submarginata; anfractibus 6, vix convexiusculis, su- 
"perioribus arctius convolutis, ultimo majore, ad peripheriam 
superne subangulato-rotundato, subtus, convexiusculo; apertura 
obliqua, magna, late lunata; peristomate tenui, acuto, margine 
dextro superne arcuatim prominente, columellari prope umbi- 
lieum breviter dilatato. — Diam. maj. 17, min. 14'/5, axis 8 
mill; apert. 9!/; mill. lata, 8 longa.» (B.) 
Helioc Choinix Bens. in Ann. and Mag. n. h. 3d. ser. VII. (Febr. 
1861.) p. 83. 
Habitat in insulis Andamanicis. 
