8TREPTAXIS §. i. — PROSERPINA. 289 



Slreptaxis Perrotteti Petit, Pfr. Monogr. 1. p. 9. N. 19. 

 - — Chemn. ed. II. Helix t. 143. f. 29 — 31. 



Habilat in inonlibus Nilagiricis Indiae. 



* 



28. pyriformis Pfr. [Cliemn. ed. II. P. II. p. 24.). Mon. I. p. lo. 



29. abcrrata Soul. [Cliemn. 1. c. p. 24. — Voy. 



Bonite t. 28. f. 32—34.) - - - 10. 



30. Str. discus Pfr. 



T. late umbilicata, discoidea, subregularis, laevigata, al- 

 bido-hyalina; spira plana , vertice prominulo; anfr. 6y<j vix 

 convexiusculi, irregulariter varicosi, ultimus depressus, subtus 

 devians, pone aperturam rotundatus, dellexus; apertura sub 

 horizontalis, transverse sinuato-auriformis, plica obhqua parietali 

 et dentibus peristomatis coarctata; perist. candidum, reflexum, 

 margine supero impresso, obsolete dentato, dextio dente di- 

 stinctiore munito, basali intus transverse calloso. — Diam. maj. 

 14, min. 11, alt. iVa mill. (Mus. Cuming. ) 

 Streptaxis discus Pfr. in Proc. Zool. Soc 1851. 



— — Cliemn. ed. II. Helix t. 145. f. 15—17. 



Habitat . . .? 



31. Str. cryptodon Moricand. 



T. umbilicata, depressa , subregularis, solidula, varicosa, 

 sublaevigata , pellucida, virenti-hyalina ; spira parum elevata; 

 anfr. 5 vix convexiusculi, ultimus non descendens, basi plani- 

 usculus; umbilicus mediocris, cylindricus; apertura parum 

 obliqua, depresso-Iunaris, tridentata: dente 1 conico in pariete 

 aperturali, 2 obtusis in margine basali peristomalis recti, intus 

 subcallosi. — Diam. maj. 5^2, min. 5, alt. 3 mill. (Mus. Cuming. ) 

 Helicc (Streptaxis) cryptodon Moric. in Joum. Conch. 1851. 



4. p. 370. f. 10. f 2. 

 Habitat in Brasilia. 



Species nomine modo mihi cognita: 



Streplaxis prostrata Gould, Jay Catal. 1850. p. 117. N. 3247. 



VIIL Proserpina Gray. 



Conferantur, quae in Monogr. I. p. XVIII de genere Odon- 

 tostomate in universum scripsi. Monendum modo est, Clarum 



ni. 1 9 



