ACHATINA.— Plate XV. 



Species 0-1. (Mus. Cuming.) 



Acii.'iTiN A G KiFFiTHSii. Achat, tedd subfmformi, spira 

 acuminata, arifracmus novem, creherrimeet sitUilmme 

 eostulato-striatis, ■ultimo medio impresso, hasi expanso, 

 columella contorts, attenuate truncatd; pellucido-albd, 

 strir/is castaneis sparsis oblique pictd. 



Griffith's Aciiatina. Shell somewhat fusiform, spire 

 acuminated, whorls nine in number, very closely and 

 finely sculptured with rib-like striae, last whorl im- 

 pressed in the middle and expanded at the base, colu- 

 mella twisted, attenuately truncated; transparent- 

 white, obliquely painted with scattered chestnut 

 streaks. 



Adams, Pro. Boston Nat. Hist. Soc, 1845, p. 14. 



Ha/j. Jamaica. 



The compressed growth of the last whorl has very much 



the appearance of an accidental distortion. 



Species 65. (Mus. Cuming.) 



AcuATlNA Bangiana. Jcluit. testd eloiigatu-tnrrild, 

 crassd, solidd, anfractihus undecim, plano-convexia, suh- 

 tilissinie arcuatim striatis, lineis impressis spiralibus 

 subdistantibus obscure notatis, columella simplici, callo- 

 sd, vix truncatd, aperturd parvd ; albido-strmidiu'd. 



Bang's Achatina. Shell elongately turreted, thick, 

 solid, whorls eleven in number, flatly convex, very 

 finely arcuately striated, obscurely marked with 

 rather distant impressed spiral lines, columella simple, 

 callous, scarcely truncated, aperture small ; whitish 

 straw-colour. 



Pfeiffer, Pro. Zool. Soc, 1846, p. 115. 



Hah. Republic of Mexico ; Linden. 



A sheU of peculiarly solid growth verging on Bulinius, 



allied to the elongately turreted group of that genus of 



which B. calcareus is the type. 



Species 06. (Mus. Cuming.) 



Aciiatina Tortillana. Achat, testd subfusiformi- 

 oblonyd, subventricosd, anfractihus septem, subtilissime 

 et creberrime costulato-.siriatis, columella coniortd et 

 attenuate truncatd; lutescente-corned, pelliicidd, quasi 

 vitred. 



The Tortilla Aciiatina. Shell somewhat fnsiformly 



oblong, rather ventricose, whorls seven in number, 

 very finely and closely rib-like striated, columella 

 twisted and attenuately truncated ; yellowish horny, 

 transparent, as though glassy. 



Pfeiffer, Pro. Zool. Soc, 1846, p. 32. 



Hah. Tortilla, Central America. 



The opake blotches and streaks described by Dr. Pfeiffer, 



appear to be merely accidental in the individual specimen. 



Species 67. (Mus. Cuming.) 



Achatina assimilis. Achat, testd oblorigd, apice sub- 

 obf/isd, anfractihus sex, Icevibus, politis, e suiuris sub- 

 tilissime impresso-striatis, superne tenuimarginatis, 

 columelld breviter reflexd, aperturd ohlongd ; vivide 

 pellucido-corned. 



The allied achatina. Shell oblong, rather obtuse at 

 the apex, whorls sis in number, smooth, polished, 

 very finely impressly striated at the sutures, thinly 

 margined round the upper part, columella shortly 

 reflected, aperture oblong ; bright transparent horny. 



Hab ? 



This approaches very closely to the A. obtiisa, Sp. 62, 

 but is of more transparent texture, whilst the columella is 

 less abruptly truncated. The sheU is composed of a 

 whorl less in number, and the spire is shorter. 



Species 68. (Mus. Cuming.) 



Achatina Hugeli. Achat, testd pyramidali-oblongd, an- 

 fractihus decern, rotundatis,superne subtilissime arcuatim 

 striatis, ad suturas 'minute ma7-ginatis, columelld valde 

 arcuatd et contortd, aperturd parvd; pellucido-albi- 

 caiite, hyalim, epidermide ienui corned lutescente. 



Hugel's Aciiatina. SheU pyramidally oblong, whorls 

 ten in number, rounded, very finely arcuatciy stri- 

 ated at the upper part, minutely margined at the 

 sutures, columella much arched and twisted, a])erture 

 small ; transparent whitish, hyaline, with a thin 

 yellowish horny epidermis. 



Pfeiffer, Symbols, vol. ii. f. 58. 



mb. — ? ' 



A neat hyaline species of pyramidal gi'owth, marked with 

 delicate covered striaa round the upper part of the whorls, 

 which become fainter as the shell approaches maturity. 



