Zoological Society, 343 



ornatd ; spird brevi, conicd, apice acuta ; anfractibus 5 planius- 

 cutis, ultimo acute carinato, basi vix convexo, antice pariim defiexo, 

 d latere subcompresso ; aperturd rhombed ; peristomate violaceo, 

 margine supero expanso, superne impresso, columellari stricto, di- 

 latato, piano, adpresso. 



Diam. 28, alt. 15 mill. 



Locality unknown. (Coll. Saul, et Metcalf.) 



8. Helix planissima, Pfr. Hel. testd umbilicatd, depressissimd, 

 lenticulari, tenui, utrinque oblique rugoso-costatd, albidd, subtHs 

 interdum corneo-fasciatd ; anfractibus 5\ convexiusculis, acute 

 carinatis (carind compressd, prominente, serratd), ultimo antice vix 

 descendente, basi convexiore, circa umbilicum mediocrem, spiralem 

 subangulato ; aperturd depressd, angulato-lunari ; peristom.ate sini' 

 plice, margine basali plane arcuato, rejlexo, 



Diam. 11^, alt. 4| mill. 



Locality unknown. (Coll. Walton.) 



Similar to H. amanda, Rossm., from which it may be distinguished 

 by its thin and flattened shell, its umbilicus, and the peristome not 

 thickened. 



9. Helix filicosta, Pfr. Hel. testd subobtecte per/or atd, depressO' 

 globosd, regulariter costatd (costis Jili/ormibus), tenuiusculd, car- 

 neo -albidd, lineisfuscis obsoletis cinctd; anfractibus 4\ convexis, 

 ultimo antice deflexo ; aperturd lunato • orbicular i ; peristomate 

 acuto, intus subincrassato, labiato, marginibus conniventibus, callo 

 introrsum diffusa roseo junctis, dextro vix expanso, columellari 

 dilatato, reflexo, roseo. 



Diam. 14, alt. 9 mill. 



Locality unknown. (Coll. Saul.) 



10. Helix retifera, Pfr. Hel. testd umbilicatd, obtuse trochi- 

 formi, striato-plicatuld, lineis nonnullis concentricis clevatis reti- 

 culata, carinatd, diaphand, pallide corned; spird elevatd, obtusd ; 

 anfractibus 6^ planiusculis, ultimo basi subplanulato, striata ; 

 umbilico mediocri, pervio ; aperturd depressd, securiformi ; peri- 

 stomate simplice, acuto, margine supero brevi, basali plane arcuato. 



Diam. 7, alt. 4 mill. 



Locality unknown. (Coll. Metcalf.) 



11. Bulimus Grayanus, Pfr. Bui. testd gracili, turritd, soliduld, 

 longitudinaliter subtilissime striatd et lineis impressis spiralibus 

 subdecussatd, cinnamomed ; spird turritd, apice valde attenu- 

 atd; anfractibus 6 vix convexiusculis, ultimo ^ longitudinis sub- 

 cequante, antice deflexo, soluto, dorso et basi carinato, lateribus 

 scrobiculato ; aperturd angustd, oblongd, basi canaliculatd ; peri- 

 stomate simplice, undique expanso, dentibus 7 marginem non attin- 

 gentibus armato ; 3 in latere dextro, 4 in sinistra, summo tuber- 

 culiformi, secundo valido, lamelliformi. 



Long. 35, diam. 11 mill. 

 Locality, Brazils. 



Nearly allied to Bui. adontostoma. Sow., but quite distinct from 

 the two varieties figured by Ferussac. (Coll. Cuming.) 



