158 HELIX §. 43. 



847 H. Troilus Gould. 



T. umbilicala, depresso-turbiuata, solida, confertim riigu- 

 loso-striuta, carinata, castaneo-fulva vel flavescens, castaneo- 

 bifasciata, nitida; spira conoidea , apice obtusiusculo pallida; 

 sutura impressa, marginala; anfr. 5% convexi, sensim accre- 

 scentes, ultimus non descendens, basi convexiusculus, lineis 

 spiralibus sub lente notatus; umbilicus mediocris, conicus, Y^ 

 diamelri superans; apertura obliqua, rotundato-limaris, intus 

 niargaritacea; perist. rectum, marginibus subconniventibus, 

 supero antrorsum arcuato, basali subincrassato, infi'a carinam 

 repando. — Diam. maj. 18, min. I0V2, alt, 9 mill. (Mus. Cuming.) 

 Helix Troilus (Caracolla) Gould in Proc. Bost. Soc. 1846. p. 



176. et Exped. Shells p. 23. Ed. 

 1851. p. 58. f. 55. 



— — Pfr. Moiiogr. I. p. 123. N. 318 a. 



— — Chemn. ed. II. Helix N. 750. l. 109. f. 25. 26. 

 Habitat in insulis Samoa. 



84S. Helix curvilabrum Adams et Reeve. 



T. umbilicata, turbinata, solida, striata , castanea, carinata, 

 supra carinam luleo-unifasciata; s[)ira convexo-conoidea, apice 

 obtusiuscula; anfr. 5 planiusculi, ullimus non descendens, basi 

 acute carinatus, subtus vix convexior; umbilicus infundibuli- 

 formis, Yg diametri subaequans; apertura perobliqua, subtri- 

 angularis, intus livida; perist. subcallosum, maiginibus remo- 

 lis, supero antrorsum dilatato , incurvato, basali arcuato, in- 

 crassato. — Diam. maj. ISVa, min. 12, alt. 7 mill. (Mus. 

 Cuming. ) 



Helix curvilabrum A. Adams et Heeve Voy. Samarang. IMoll. p. 



59. t. 14. f. 9. 



— — Chemti. ed. II. Helix N. 970. t. 147. f. 18. 19. 

 Habitat in insulis Philippinis. 



849. H. Merziana Pfr. 



T. umbilicata, conoidea, tenuiuscula, superne subtiliter 

 ruguloso-striata, fusca, strigis et maculis lutescentibus mar- 

 morata; spira convexo-conoidea, obtusula; sutura impressa, 

 marginata; anfr. 57^ convexiusculi, ultimus acute carinatus, 

 antice non descendens, basi subplanus, minute radialo-striatus, 

 flavidus, juxta carinain compressam castaneo-unifasciatus; um- 

 bilicus latiusculus, extus subinfundibuliformis; apertura per- 

 obliqua, securiformis, intus iridescens; perist. subconnivens, 

 margine dextro tenui, antrorsum curvato, subdepresso, colu- 

 mellari et basali perarcuatis, subincrassaiis. — Diam. maj, 23, 

 min. 20, alt. 97^ mill. (Mus. Cuming.) 



