220 



A most remarkable and beautiful shell, belonging to the peculiar 

 group of Bulimi, with angulated apertures, found on the Amies, near 



Chimborazo. The basal angle stands off further from the axis in 

 this than in any other speeies yet Ggured. B. semiclausus is handed, 

 the basal augle rounded, the spire less acute. B. Knorri is more 

 elongated, and the basal angle nearly axial. B. murrinus and B. 

 fabref actus are also allied. 



Streptaxis prostrata. T. pupoidea, valde distorta, tenuis, 

 dilute cornea; anfr. 6, posticis lateraliter appositis, ad peripheriam 

 acute angulatis, antico subtus glabrato: apertura longior quam lata, 

 lamina palatali instructa ; peristomate reflexo ; umbilico crescentico, 

 satis magno. Long. | poll. ; lat. j poll. 



Found by Dr. G. A. Perkins, at Cape Palmas, and at Boekbookay, 

 twenty miles in the interior, under dead leaves. He says, " the ani- 

 mal is beautiful red, yellow, and orange." It is of the size of S. abcr- 

 rans, but is more eccentric and more compressed. 



Streptaxis elisa. T. modica, valde distorta et comp 

 supra tenuiter striata, infra glabrata et late perforata ; spira dis- 

 coidea ; anfr. 7 -f- juxta suturam profundam angulatis, ultimo 

 ahter valde protenso: apertura transversa, subquadrata, peritrcmate 

 everso, intus denticulis quatuor cruciatim dispositis armato, quinto 

 minimo interdum postice addito. Length, half an inch ; height, one 

 quarter inch. From an island in the Mergui Archipelago ; Rev. J. 

 Benjamin. 



In size and form most like S. Souleyetana, but is even larger and 

 more depressed ; aperture much as in S. pyriformis, but more elon- 

 gated, and the posterior denticle is very small and marginal ; the 

 shell is double iu size. 



Streptaxis exacutus. T. grandis, omnino dislocata, late um- 

 bilicata, pallide cornea, supra acute lirata, infra polita: spira discoidea 

 lateralis ; anfr. 6 -|- penultimo postice valde protruso, exacuto, api- 

 calibus convexiusculis, bene discretis : apertura subquadrata ; peris- 

 tomate albo, reflexo, postice angustato et sinuato ; palato lamina 

 itrali et altera inconspicua ad angulum munito. Length, h ; 

 breadth, ^- poll. Found by Rev. F. Mason, in Burmah. 



More solid and compressed than S. elisa, with no denticles on the 

 peritreme, anil with the edge of the penult whorl, forming the pos- 

 terior end of the shell, very sharp. 



Clausilia vespa. T. solida, sinistrorsa, vespseformis, deilecta, 

 laavis, intense rufa; anfr. (;, anteriori raptim attenuate, proximo 

 corpulento, apicalibus cito decrescentibus ; sutura impressa, vix mar- 

 ginata : apertura ovata ; columella biplicata; peritremate late reflexo, 

 rufo. Long L; /;, poD. Inhabits Tavoy. Rev. Francis Mason. 



