AMPULLARIA, 



Plate XXVII. 



Species 126. (Mus. Hanley.) 



Ampvllaria Planoebula. Amp. testa dkcoided, am- 

 pliter nmbilicafd, spird Ireoi, sicbimmersd, mifractibus 

 aitffustis, couvexk, lavibus, ad mturam depressis ; lu- 

 tescente-albd, fasciis lineisque castaneis cingulatd ; 

 aperturd lunato-circulari, labro wnplici. 



The little Planorbis Ampdllaeia. Shell discoid, 

 largely umbilicated, spire sliort, subimmersed, whorls 

 narrow, couvex, smooth, depressed at the suture; 

 yellowish-white, encircled with chestnut bands and 

 lines ; aperture lunar-circular, lip simple. 



Philippi, Kuster, Conch. Cab. Jmp. p. 26. pi. 7. f. 3. 



//„/,, . ? 



A small species, distinguished from all others of the 

 sjenus by its discoid Fto/iorbii-Uke growth. 



Species 127. (Fig. a, b, Mus. Cuming.) 

 Ampullabia decussata. Amp. testa mbglobosd, arujuste 

 profundi umbiUcatd, spird obtiisd, erosd, anfracUbus 

 angustis, converis, striis tenue decussatis, ad suturam 

 late planatis ; livido-oastaned, lineis fulvescentibus 

 cingulatd, ad svlttram. fulvescente ; aperturd ovatd, 

 parviusculd, labro simpliei. 

 The decussated Ampullaria. Shell subglobose, nar- 

 rowly deeply umbilicated, spire obtuse, eroded, whorls 

 narrow, convex, finely decussated with striae, broadly 

 flattened at the suture ; livid-chestnut, encircled with 

 fulvous lines, fulvous at the suture ; aperture ovate, 

 rather small, lip simple. 

 MoRiCAND, Mem. Soc. Phys. de Geneve, vol. vii. p. 41-5. 



pi. 2. f. 26, 27. 

 riab. Brazil. 



A rather narrowly convoluted shell, decussated through- 

 out with fine stria', especially characterized by a broad 

 flattened development of the whorls next the suture. 



Species 12S. (]\Ius. Hanley.) 

 Ampullaria Swainsoni. Amp. testa oblongo-ova Id, an- 

 gusti profundi uMbilkatd, spird mibexsertd, anfracti- 

 bus convexis, undique minute pnncfulatis ; lutescente- 

 olivaced, fasciis numerosis angustis viridibns cingulatd; 

 aperturd jn/riformi-ovatd, labro efuso,fauce albicante. 

 Swainson's Ampullaria. Shell oblong-ovate, narrowly 

 deeply umbilicated, spire rather exserted, whorls con- 

 vex, minutely punctured throughout ; yellowish-olive, 

 encircled with numerous narrow green bands ; aper- 

 ture pyrifornily ovate, lip effused, interior whitish. 



Ampullaria fasciata, Swainson, Zool. lllus. Second Series, 



vol. ii. pi. 61.. 



Ampullaria Swainsoni, Philippi. 



Hab. ? 



Distinguished from its congeners by its bold oblong- 

 ovate form of convolution and continuous encircling of 

 narrow bands. 



Species 129. (Fig. a, b, Mus. Hanley.) 



AMPULi,ARi.i balanoidea. Amp. tesid ovatd, solidd, ob- 

 tecte umbilicatd, spird subexsertd, oblttsd, atifractibus 

 rotundatis, subangustis, tetiuissime granoso-striatis, ad 

 suturam plano-declivibus ; nigricante-castaned ; aper- 

 turd parviusculd, ovatd, labro effusd, columelld calloso- 

 reflexo, aurantio tinctd. 



The acorn-like Ampullaria. Shell ovate, solid, with 

 a covered umbilicus, spire rather exserted, obtuse, 

 whorls rounded, rather narrow, very finely granosely 

 striated, flatly slanting at the suture ; blackish-chest- 

 nut ; aperture rather small, ovate, lip effused, colu- 

 mella callously reflected, orange-tinted. i t-J '' ' 



Gould, MS., Mus. Hanley. r- ■>'' 'it"-^-^' 



Hab. Liberia, West Africa. 



Very closely allied to A. Plata which follows, but of 



a more obliquely effused form, with a more exserted spire. 



Species 130. (Mus. Cuming.) 



Ampullaria Plat.*. Amp. testa ovatd, solidiusculd, im- 

 perforatd, spird obtuse exsertd, anfractibus subangustis, 

 convexis, minute granoso-striatis, ad suturam obtuse 

 planatis; lutescente-eastaned, fa-mis angustis fuscis 

 cingulatd ; aperturd ovatd, labro simpliei, columelld 

 calloso-reflexd, aurantio-tifictd. 



The Plate Ampullaria. Shell ovate, rather solid, im- 

 perforated, spire obtusely exserted, whorls rather 

 naiTow, convex, minutely granosely striated, ob' 

 tusely flattened at the suture ; yellowish-chestnut 

 encircled with narrow brown bands ; aperture ovate 

 lip simple, columella callously reflected, orange-tinted 



Helix Plata, Maton, Trans. Liim. Soc. 1809, vol. x. pi 

 24. f. 16, 17. 



Ampullaria Plata, D'Orbigny. 

 Ampullaria Naticoides, D'Orbigny. 

 Ampullaria cyclostoma, Spix. 



Hab. Eiver Plate. 



Distinguished from the preceding species, from Liberia, 



to which it is singularly closely allied, by its narrower 



form of convolution and banded painting 



December, 1856. 



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