232 IIELIX §. 50. 



fulvesccns, fasciis castaneis {)luriuiis ornata; spira brevis, conica, 

 apice acuta; anfr. 5 planiusculi, ultimus acute carinalus, basi vix 

 convexus, antice parum deflexus, a latere subcompressus; aper- 

 tura rhombea; perist. violaceum, margine supero expanso, superne 

 impresso, columeHari stricto, dilatato, plano, appresso. — Diam. 

 maj. 28, min. 23, alt. 15 mill. (Goll. Saul. et Metcalfe.) 



Helix rhombostoma Pfr. in Proc. Zool. Soc. 1845. p. 72. 

 Habilat ? 



G14. H. lonchostoma (Carocolla) Menhe. 



T. imperforata, orbiculato-conica, acute carinata; sutura 

 linearis; anfr. 6 plani , ad carinam scrobiculato-crenati, u/timus 

 nigricanti-lrifasciatus, basi convexiusculus, antice subito deflexus; 

 apertura oblique lanceolata; perist. siraplex, acutum, margine 

 supero subexpanso, basali breviter reflexo. — Diam. maj. 22. 

 min. 18, alt. 15 miU. (Coll. Nr. 358.) 



Carocolla lonchostoma Mke syn. p. 76. ed. 2. p. \il. 



Ilelix lofichostoma Voiyt in Guv. Thierr. III. p. 71. 



— — Chemn. ed. II. Ilelix N. 66. t. 13. f. 5. 6. 



Habitat in Brasilia. 



Obs. DifTeit a sequenle foima depressa , carinae sculplura et anfractu 

 ullimo deflexo. — Umbilicus juniorum in adultis iamina tenui omnino clausus est. 



615. H. bifasciata (Trochus) Burrow. 



T. imperforata, acute conica, trochiformis , tenuis, diaphana, 

 albida vel rosea , unicolor vel nigricanti-rufo varie cingulata ; anfr. 

 7 plani, ultimus acute cainnatus, supra carinam convexiusculus, 

 antice non descendens, basi vix convexus; apertura perobliqua, 

 triangularis; perist. simplex, album vel roseum, margine supero 

 cxpanso, basali reflexo. — Diam. maj. 20, min. 17, alt. 17 inill. 

 (Coll. Nr. 359.) 



Trochus bifasciatus Burr. elem. t. 27. f. 2. 



Helix bifasciala (Helicigona) Fer. pr. 143. 



— — Chemn. ed. II. Helix N. 65. t. 1 3. f. 1.2. 



— pyramidella Wagn. in Spix p. 22. 



— — Lam. ed. Dh. 223. p. 13 4. 



— Bosciana (Hehcigona) Fer. pr. 144. Ilisl. t. 6i. i". 1. 



— — Lam. ed. Dh. 187. p. 118. 



— Blanchetiana Moric. Mem. Gcn. VI. p. 2. i. I. f. 3. VII. p. 4 1 8. 

 CarocoUu bifusciata Gray in Ann. ofPhil. New ser. IX. p. 412. 

 Helicina pyramidella Spix test. bras. t. 16. f. 1. 2. 

 Gcotrochus pyramidella Bcck ind p. 47. 



llabitat in Rrasilia, Bahia. 



