HELIX &. 24. 195 
519. (365. rufa Less. (Coll. Nr. 205. Nanina rufa (Hemiplecta) A?. 
53. — Nova Hibernia. (I. 73.) 
520. (369. semifusca Desh. — Nanina semifusca (Xesta) A?. 514. — 
Ind. or. (IV. 62.) 
591. H, caesia Pfr. 
T. perforata, depressa, tenuis, pellucida, corneo - grisea, 
superne striatula, parum nitens, sub lente lineis spiralibus 
sculpta, subtus radiato-striata, nitidior; spira breviter conoidea, 
vertice subtili; sutura levis; anfr. 6 planiusculi, regulariter 
accrescentes, ultimus medio subcarinatus, basi convexiusculus ; 
apertura obliqua, late lunaris; perist. simplex, rectum, margini- 
bus remotis, columellari declivi, ad insertionem vix dilatato. 
— Diam. maj. 17, min. 15!, alt. 8 mill. (Mus. Cuming.) 
Helia caesia (Nanina) Pfr. in Proc. Zool. Soc. 18614. p. 20; 
Novit. conch. Fasc. XV. p. 168. Nr. 266. 
t. 45. f. 14—16. 
Habitat in insulis Admiralitatis. 
022. H. regulata Benson. T 
«T. vix perforata, depressa, tenui, oblique obsolete stria. 
tula, utroque spiraliter elegantissime acuducto-striata, fusco 
cornea, pellucida, politissima; spira depresso-conoidea, apice 
obtusiusculo, sutura impressa submarginata; anfract. 3!/, con- 
vexiusculis, celeriter accrescentibus, ultimo ad peripheriam 
subangulato, subtus convexiore, antice non descendente; aper- 
iura ampla, obliqua, rotundato-lunari, peristomate recto, acuto, 
margine columellari arcuatim descendente, superne supra per- 
forationem reflexiusculo, marginibus remotis subconniventibus, 
callo tenui junctis. — Diam. maj. 44, min. 9, axis 6 mill» (B.) 
Helix; regulata Bens. in Ann. and Mag. n. h. 3d. ser. V. (May 
1860.) p. 383. 
Habitat prope Matelle insulae Ceylon (F. Layard). 
* 
523. (370. honesta Gould. —  Nanina honesta (Orobia) A?. 58. — 
Birmania. (IV. 63.) 
524. H. Ramburiana Mabille et Le Moesle. T 
«Testa anguste umbilicata, depressa, supra convexa, infra 
planiuscula, tenuis, glaberrima, solidiuscula, subpellucida, su- 
perne nitidula, subtus nitidissima; costato-striata, striis supe- 
rioribus longitudinalibus, numerosis, flexuosis, lamellosis, in- 
ferioribus obsoletis, regulariter impressa; aníractibus 6 —7, 
convexiusculis, regulariter crescentibus; ultimo carinato; sutura 
