IIELIX §.16. 77 



vexiusculi, ultimus acute carinalus, basi gibbus; apertura rotun- 

 dato-lunaris; perist. simplex, margine columellari non reflexo. — 

 Diam. maj. 44, min. 35, alt. 20 mill. (Coll. Nr. 10'2.) 



Helix (Caracolla) retrorsa Gould iu Bost.journ. IV. 4. p. 455. t. 24. f. 4. 



— refrorsa Chemn. ed. II. Ilelix N. 686. t. 1 1 0. f. 4 — 6. 

 liabitat in imperio birmano Indiae orientalis, prope Tavoy (Gould), 

 prope Mergui (Th. Philippi). 



Obs. Difforl ab H. Rumphii spira elala, scuiplura ctc. 



- 01'i\ ■■■■ 



177. H. Janus Chemnitz. 



T. perforata, sinistrorsa, orbicularis, tenuis, diapliana, oblique 

 reeulariter et confertim costulato-striata, superne fusca, basi con- 

 vexa rufo-castanea , nitidiuscula ; spira late conoideo-depressa ; 

 anfr. 7 planulati, ultimus carinatus; apertura lunaris; perist. tenue, 

 acutuni, margine columellari reflexiusculo, — R. a. = 4 : 5. — 

 Diam. maj. 36, min. 31 , alt. 17 mill. (Coll. Nr. 103.) 



Helix Janus bifrons Chemn. XI. p. 307. t. 2 13. f. 3016. 17. 



— — — (Hellcella) Fer. pr. 233. 



— — Pfr. in Proc. Zool. Soc. 1842. p. 87. 



— — (Nanina?) P[r. Symb. II. p. 19. 



— — Chemn. ed. II. Helix N. 59. t. 1 1 . f. 4 — 6. 



— Mackensiana Soul. in Revue zool. 1841. p. 347. 



— Balesteriaiia Lea in Transaci. Am. phil. Soc. VII. p. 460. 



t. 12. f. 10. 

 Arioj)hanta Janus Beck ind. p. 5. 

 Habitat in monte Ophir peninsulae Malaccanae (Cuming). 



178. H. bataviana v. d. Busch. 



T. perforata, depresso-globosa , tenuis, obtuse carinata, sii-' 

 perne cinnamomea, oblique confertim costulata, subtus castanea, 

 striata, versus umbilicum pallida, area umbilicali castanea; anfr. 

 Oy^ vix convexiusculi; apertura angulato-lunaris; perist. subsim- 

 plex, ad perforationem arcuatim reflexum. — 11. a. = 2 : 3. — 

 Diam. maj. 33%, min. 29, alt. 17'/. mill. (Coll. Nr. 104.) 

 Heli^ bataimna v. d. Busch in Phll. Icon. I. 1. p. 9. t. 1. f. 3. 



— — (Nanina?) P//-. Symb. II. p. 17. 



— — Che7nn. ed. II. Helix N. 58. t. M. f. 1 —3. 

 Ilabilat in insula Java (Winter). 



179. H. Cuvieriana Lea. 



.T. aperte perforata, orbiculata, tenuis, pellucida, oblique 

 striata, carinata, olivaceo-lutescens, infra carinam foscia lata rufa, 

 deorsum diluta, ornala; spira vix elata; anfr. 5 planulati, ultimus 

 basi convexus; apertura lala, lunaris; perist. simplex, acutum. 



