500 IIKLIX. 



§• II- 



166. Nicobarica Chcmn. — Conch. Ind. t. S2. f. 1. 



167. scmirugata Bcck. — Conch. Ind. t. 59. f. 4. 



168. Tranqucbarica Fabr. — Concli. Ind. t. 59. f. 3. 



169. corneovircns Pfr. — Leptaxis Tappar.-Canefri Mcalac. viaggio 



Mag. p. 96. 

 171. Cochinchincnsis Pfr. — Journ. Conch. X. 1862. t. 10. f. 4 

 (non f. 3). 



173. H. Ammonia Valcncienncs. ° 



■''. T. sinistrorsa, angustissiine umbilicata, subglobosa, lenuis, 

 fragilis, pellucida, virenti-cornca, superne fortiler arcuato-plicata; 

 spira brevis, convexa, obtusa; sutura subprofunda; anfr. 4 con- 

 vexi, celeriter accrescentes, summi laevigali, ultimus inflatus. 

 peripheria subangulatus, antice vix descendens, subtus laevior, 

 circa umbilicum subcompressus; apertura diagonalis, magna, 

 lunato-rotundata , intus nilidissima; perist. rectum , obtusulum, 

 marginibus convergentibus, columeliari sursum sensim dilatato, 

 breviter reflexo. — Diam. maj. 18, min. ISV^, alt. 13 mill. 

 Helix Ammonia VaL, Pfr. Mon. VII. p. 76. 

 — — Pfr. in Chemn. ed. II. Nr. H I 7. t. 1 62. f. 24. 25. 



Habitat Bombay. (E collectione Liidersiana.) 



* 



179. Orcula Bcns. — Conch. Ind. t. 87. f, 1. 4. 

 182. Calpis Bens. — Conch. Ind. t. 16. f 8. 



§. 12. 

 186*'. H. Stuxbergi Westcrlund. f 



«Testa perforata vel anguslissime umbilicata, depresso- 

 globosa, rufo-brunnea, fuivescens, nitidula, tenuis, pellucescens, 

 dense transversc striata, utrinque densissime pilosa, pilis vel 

 setis in striis transversalibus positis, brevibus, sursum arcualo- 

 depressis; spira elata; anfr. 5 — SY^» sat forle accrescentes, 

 convexiusculi, sutura profundiuscula separati, ultimus obsolete 

 obtuse angulatus, medio fascia albida interduiu subolisoleta 

 cinctus ; apertura rotundato-lunata, peristomate simplici, vel 

 intus juxta marginem late et tenui margaritacea (non tamen 

 labiata), marginibus rectis, tantum columellari superne ad per- 

 forationem reflexiusculo. — Diam. maj. 9, min. Sy^, alt. 6; 

 apert. lat. 5, alt. 4 mill. » (W.) 



Ilelix sericea Schrenk 1867, non Drap. 

 — StuCchergi (Trichia) Agardh - Weslerl. in Nachrichlsbl. 

 nialak. Ges. VFII. 1876. p. 98. 



llabilat in Sibiria, frequens ad Jenissei, nec non ad An»ur. 



