The principal difference between this and the last species, is, 

 that the whorls increase more gradually in size, the outer lip is 

 also generally more thickened on the outside ; the colours of this 

 species vary considerably and are arranged in bands as in the last. 



West Indies. 



29. H. ANTiLLARUM. (pi. ii. f. 68, 69, 70.) 



T. depressa, magna, tenui, leviter striata ; anfractu ultimo 

 magno ; labio interno tenui, prope columellam paululum incras- 

 sato; columella rotundata, angusta, obtusissime angulata; labio 

 externo expanso, reflexo, postice sub-depresso. 



Depressed, large, thin, very finely striated; last whorl large; 

 inner lip thin, swelled near the columella ; columella rounded, 

 narrow, obtusely angulated at its union with the outer lip, which 

 is thickened, expanded, and reflected. The commonest variety is 

 coloured with brown mottled bands on a light ground ; another 

 variety is of a uniform light green, and a third purplish brown ; 

 in an individual of the last, a very obtuse keel is to be traced in 

 the centre of the whorl. Antilles. 



30. H. occiDENTALis, (pi. ii. f. 86 and 87.) Guild. Zool. 

 Journ. iii. p. 529. 



T. depressa, reticulata; obsoletissimecarinata; columella rotun- 

 data ; labio externo expanso, reflexo ; operculo corneo. 



Depressed, reticulated, very obscurely carinated, or rather an- 

 gulated ; columella rounded, passing smoothly and obliquely into 

 the outer lip, which is expanded, reflected, and rather depressed 

 above ; operculum horny. West Indies. 



31. H. GuADALouPENsis. (pi. ii. f. 65, 66,) nobis. Zool. Proc. 

 1842. 



T. depressa, sub-angulata, concentrice leviter striata ; columella 

 ad basin sub-nodosa ; labio externo crasso, reflexo ; anfractibus 

 gradatira crescentibus, supra infraque sub-ventricosis ; operculo 

 fusco, corneo. 



This shell is rather thicker and more depressed than the last, 

 the whorls more gradually increasing, and the outer lip less 

 expanded. Guadaloupe and the Antilles. 



32. H. MAcuLATA. pi. iii. f. 131). 



T. trapezoidea, sub-angulata, supra infraque conica, laevi, tenui, 

 rubro-fasciata et maculata; labio externo reflexo, sub-expanso, ad 

 basin columellas tenui ; columella sub-callosa, ad basin attenuata ; 

 operculo corneo. 



Several varieties of this pretty little shell were kindly commu- 

 nicated by M. D'Orbigny, and, no name being attached to them, 

 I have ventured to give it the above, regretting, however, that 

 time would not allow of a previous communication with their 

 possessor. This species is more angular than the preceding, and 

 conical above and below. There are several varieties, mottled 

 and banded, with red or brown, on a pink or yellowish ground. 



South America. 



