314 HELIX §.59. 



crem obturante. — Diam. maj. 61, min. 30, alt. 30 mill. (Coll. 

 Nr. 502.) 



Helix Bainbridgei Pfr. in Proc. Zool. Soc. 1845. p. 44. 



— — Chemn. ed. II. Helix N. 368. t. 63. f. 5. 6. 



— Lamarckii var. unident. Fer. hist. t. 58. f. 1. 2. 

 Habitat in Demerara (Bainbridge). 



Obs. Variat umbilico semiaperto. (Mus. Cuming.) 



819. H. peracutissima Adams. -f* 



T. magna, imperforata, lenticalaris , subtenuis, fusca, exile 

 sagrinata; anfr. 5, inferi supra concavi, ultitnus meclio in anguluin 

 acutissimum, lamelliformem expansus, subfus convexus; apertura 

 perdepressa , infra H. sinuatae Mtill. similiter 4-dentata; labrum 

 medio acute angulatum. — Div. 140°. Alt. 0.6, lat. max. 1,6, lat. 

 min. 1,43 poU. (Ad.) 



Helix peracutissima Adams in Bost. Proc. 1845. p. i 5. 

 Habitat in insula Jamaica. 



mi. H. Martiniana Pfr. 



T. obtecte perforata , discoidea , acute carinata, solida, slriata 

 et minutissime granulata, olivaceo-fusca ; spira depressa; anfr. 5 

 planulati, ultimus nou descendens, basi inflatus, antice profunde 

 scrobiculatus ; apertura depressa, late angulato - lunaris ,' intus 

 lactea; perist. album, incrassatum, marginibus callo tenui junctis, 

 supero expanso, basali reflexo, dentibus 2 conjunctis, columellari 

 dilatato, dentibus 2 inaequalibus ai^mato. — Diam. maj. 34, min. 

 30, alt. 14 mifl. (Mus. Cuming.) 



Helix Martiniana Pfr. in Proc. Zool. Soc. 1845. p. 44. 

 Habitat in insula Jamaica (Attanasio). 



Obs. An forte eadem ac praecedens? — Variat lesla subperforata. — 

 Conf. H. Schroeteriana (Nr. 1045). 



821. H. Okeniana Pfr. 



T, obtecte perforata, orbicularis, utrinque convexiuscuiia, 

 bbtuse carinata, undique regulariter granulala,' superne fusca, 

 basi pallida; anfr. 5/2 rotundato-planati, ultimus antice deflexus, 

 basi profunde bisci^obiculatus ; apei^tui^a subhorizontalis , elliptica, 

 coarctata; perist. carneo-fuscum , incrassatum, marginibus calio 

 junctis, supero expanso, basali reflexo, tridentato: dentibus aequi- 

 distantibus, 2 minoribus prope columellam, tertio majore superne 

 sulcato. — Diam. maj. 37, min. 30, alt. 17 miU. (Mus. Cuming.) 



Helix Okeniana Pfr. in Proc. Zool. Soc. 184S. p. 63. 

 Habitat in insula Jamaica: Savannah la Mar (Attanasio). 



