ACHATINA. SUCCINEA. 37 



colour within, and one-plaited ; apex obtuse. Ih- 

 W. 18.45. 



A . PRIAM u s . Ovate, ventricose, thin, smooth, 

 diaphanous, brownish rose-colour, reddish chest- 

 nut square spots disposed in transv erse lines ; spire 

 short; lip acute. W. 18. 51. 



** Last whorl depressed and attenuated towards the base. 



A. FOLLicuLus. Small, sub-turreted, smooth, 

 diaphanous, white or yellowish horn-colour; whorls 

 convex; apex bluntish. J. B. T. 102. 



A. ACicuLA. Slender, smooth, polished, 

 white, with six flat volutions ; the last equal in 

 size to the rest together; minute. B. T. Jl- 



SUCCINEA. FLUVIATILE. 



Ovate, or ovate-conical; aperture very wide, entire, 

 and longitudinal ; outer lip acute, not reflected, 

 united to the columella, which is protracted ; 

 columella smooth, attenuated, and acute ; no 



S. AMPHIBIA. Ovate-oblong, most thin, pel- 

 lucid, yellowish ; spire short ; aperture dilated be- 

 neath, sub-vertical. J. B. T. 73. 



S. OBLONGA. Ovate-oblong, fragile, longi- 

 tudinally striated, lighter horn-colour than the 

 last ; whorls four, convex ; aperture scarcely larger 

 than the spire. \. B. T. 7^. 



