HELIX.— I'LATE lAll. 



coiicavo ; aperliird lunari, nuljltorizoniali, fauce lameltu 

 lenui iiulrucld ; perintoiimle miipUci, acuta. 



The connecting Helix. Shell imperforated, broadly 

 conoid, much depressed, whitish beneath a horny 

 epidermis ; spire obtuse ; whorls eight to nine, flatly 

 convex, arcuately striated, last whorl slightly angled, 

 depressly concave at the base ; aperture lunar, rather 

 horizontal, furnished with a thin lamella in the in- 

 terior ; lip simple, acute. 



Adasis, Contributions to Conchology, No. 7. p. 10.5. 



Hai. Jamaica. 



This species is distinguished from all others of the 

 group by its broad depressed plan of convolution. 



Species 313. (Mus. Cuming.) 



Heli.x epistyloides. Hel. testa imperforatd, aolidd, 

 gtoboso-conicd, oblique costulato-siriidd, sub epUlermide 

 rumeo-lutesceute alba ; spird elald, setuiglobosd ; an- 

 fractibus novent, convexiusculis, ultimo obsolete an- 

 ijulalo, reliquis vix latiore, basi impresso ; columelld 

 brevi, perobliqud, basi dilatatd ; aperlurd valdi de- 

 pressd, oblique lunari, lamella inttis munitd ; peristo- 

 niate simpUci, acuta. 



The ch.\pitek-like Helix. Shell imperforated, solid, 

 globosely conical, obliquely rib-like striated, wliite 

 beneath a yellowish-horny epidermis ; spire raised, 

 semiglobose; whorls nine, rather convex, the last 

 obsoletely angled, scarcely broader than the rest, im- 

 pressed at the base ; columella short, very oblicjue, 

 dilated at the base ; apertm-e very depressed, ob- 



li(|uely lunar, furnished within with a lamella ; lip 



simple, acute. 

 Fercssac, Hist. Moll. pi. 51 5. f. i. 

 JIab. Jamaica. 



This species dillirs Irom H. alligarui only in being 

 erectly convoluted. 



Species 314. (Mus. Cuming.) 



Helix epistvliim. Ilel. testa imperforatd, solidd, temi- 

 ffloboso-conoided, regiitariter costulato-striatd, sub epi- 

 dermide fulei'.tceiite dtcixlud albd ; spird eleratd, ob- 

 tuse coiiicd; anfrartiius septem ad oclo, lente accres- 

 centibus, convexiusculis, ultimo dilatato, basi subptaiat- 

 lato, sid)striato ; columelld brevi, obliqud, basi dilatatd ; 

 aperlurd depressu, lunari, intus lamella validd acutd 

 muititd ; peristomate simplici, acuta. 



The ciiAPiTEK Helix. Shell imperforated, solid, semi- 

 globosely conoid, regularly rib-like striated, white 

 beneath a light fidvous deciduous epidermis ; spin- 

 raised, obtusely conical : whorls seven to eight, in- 

 creasing slowly, rather convex, the last dilated, rather 

 flattened and finely striated at the base : columella 

 short, oblique, dilated at the base ; aperture de- 

 pressed, lunar, furnished within with a strong, sharp 

 lamella ; lip simple, acute. 



Miller, Verm. terr. it fluv. Hist. vol. ii. p. 57. 



Ilab. Jamaica. 



Rather broader and more inflated at the base than the 

 preceding species, with a lighter-coloured epidermis. 



