AMPULLARIA, 



Species 21. (Mus. Cuming.) 

 Ampullar! A livescens. Amp. testa globosd, suhvenlri- 

 cosd, spird irevi, anfractibus tumide decUvibus, deiude 

 convexis, Icevibus, nitentibiia ; umbilico profnndo, aub- 

 contracto ; aperturd pyriformi-ovatd ; Ikido-cinered, 

 juxta suluram fiilvescente, fasciis olivaceo-viridibus 

 cingulatd. 

 The livid Ampullaria. Shell globose, somewhat vcn- 

 tricose, spire short, whorls tumidly slanting round 

 the upper part, then convex, smooth, shining; umbi- 

 licus deep, rather contracted ; aperture pyriformly 

 ovate ; livid ash, fulvous next the suture, encircled 

 with narrow olive-greeu bands. 



Hah. ? 



A rather tumid species, with the whorls full and slant- 

 ing round the upper part, of a fulvous livid colour, en- 

 circled with narrow greenish bands. In substance rather 

 thin, with a smooth shining surface. 



Species 22. (Mus. Cuming.) 



Ampullaria Lattuei. ylmp. testa globosd, solidiusculd, 

 npird bn'viuscnld, mifractibics rotundatis, lavibus ; 

 umbilico profnndo, subcontracto ; sordidi fulvd, fas- 

 ciis pallids olivaceo-viridibus cingulatd; aperturd 

 ovaid, lubro subreflexo. 



Lattre's Ampullaria. Shell globose, rather solid, 

 spire rather short, whorls rounded, smooth ; umbi- 

 licus deep, rather contracted ; dull fulvous, encircled 

 with pale olive green bands ; aperture ovate, lip 

 slightly reflected. 



Hnb. Coban, Guatemala; Lattre. 



Of a less tumid form than the preceding species, and of 



thicker substnuce, not shining exteriorly. 



Species 23. (Mus. Cuming.) 



Ampullaria haustrum. Amp. testa compresse ovatd, 

 ventricosissimd, vie umbilicatd, spird parvd, subim- 

 mersd, aitfraciibus ad suturam impresse canaliculatis, 

 delude convexis ; sordide olivaced, striata ei malleatd, 

 fasciis angustis palUde virescentibus citigulafd ; aper- 

 • turd pyrifornii-oblongd, perampld ; fauce livido-pur- 

 pured. 



TuE scoop Ampullaria. Shell compressly ovate, very 

 vcntricose, scarcely umbilicated, spire small, rather 



immersed, whorls impressly channelled at the suture, 

 then convex ; dull olive, striated and malleated, en- 

 circled with narrow faint green bands ; aperture py- 

 riformly oblong, very large ; livid purple in the 

 interior. 

 Hah. River Maranon, Brazil. 



This fine species belongs to the same type as A. imii- 

 larnni, D'Oi'bigny, from La Plata. Its chief points of 

 difference consist in being less distinctly umbilicated, and 

 in having a much larger and more expanded aperture. 



Species 24. (Mus. Cuming.) 



Ampullaria melanocheila. Amp. testa globoso-tur- 

 binald, spird mediocri, anfractihts superne planatis, 

 deinde convexis ; umbilico amplo, profnndo ; aperturd 

 ovatd; olivaceo-virescente, fasciis angustis pallide ru- 

 fescente-fuscw cingulatd, labro nigro. 



The black-lipped Ampullaria. Shell globosely tur- 

 binated, spire middling, whorls flattened round the 

 upper part, then convex ; umbilicus large, deep ; 

 aperture ovate, olive-green, encircled with narrow 

 faint reddish-brown bands, lip black. 



Eab. ? 



A very characteristic species, rather deiiressly flattened 



next the suture, with the lip conspicuously black-stained 



within tiie aperture. 



Species 25. (Mus. Cuming.) 



Ampullaria Columbiensis. Amp.testd globom, tenui- 

 culd, vmtricosd, spird subplanulatd, anfractibus con- 

 vexis, Icevibus, nitentibus ; iimbilico parvo, contralto ; 

 aperturd ovatd, subampld ; fulvescente-cinered,fascii.i 

 pallide olivaceo-viridibus cingulatd. 



The Columbia Ampullaria. Shell globose, rather thin, 

 ventricose, spire rather flat, whorls convex, smooth, 

 shining ; umbilicus small, contracted ; aperture ovate, 

 rather large ; fulvous ash, encircled with faint olive- 

 green bands. 



Sowerby, MS. Mus. Cuming. 



Eab. Chiriqui, Veragua. 



Of light globose structure, with only a small umbilicus, 



fulvous in tone of colour, encircled with faint olive-greeu 



bands. 



August, 1856. 



