Zoological Society. 339 



cies is likewise similar to several unkeeled varieties of Hel. hifasciata, 

 but by examining a large number of specimens of this and the other 

 ones, I found the above characters to be invariably constant. 



13. Helix Metcalfii, Pfr. Hel. testd late umhilicatd, depressd, 

 discoided, acute carinatd, striatuld, pallide vel rufescenti-corned, 

 utrinque juxta carinam albam castaneo-unifasciatd; spird vix ele- 

 vatd ; anfractibus 6 vix convexiusculis, ultimo antice vix descen- 

 dente ; aperturd subtriangulari ; peristomate simplice, margine 

 supero antrorsum arcuatim dilatato, depresso, basali ad columellam 

 leviter arcuato. 



Diam. 21, alt. 7 mill. 



/3. Minor, flavida, lineis angustis nigricanti-rufis juxta carinam, 

 Diam. 17, alt. 5^ mill. 



y. Unicolor , f us CO- cornea. Diam. 15, alt. 5 mill. 



Found by Mr. Cuming on the Philippine Islands and at Sibonga, 

 island of Zebu ; /3. at Tanhay, island of Negros ; y. on the island of 

 Siquijor. Distinguished from all species belonging to the same 

 group by its flattened shape. 



14. Helix tristis, Pfr. Hel. testd imperforatd, ovato-globosd, 

 tenui, striatd, lineis concentricis obsolete decussatd, olivaceo-fuscd, 

 rufo 5 -fasciatd ; spird parvuld, conoided ; anfractibus 4 convexi- 

 usculis, ultimo inflato ; aperturd lunato-ovali, intus nitidd ; peri-' 

 stomate simplice, recto, margine columellari dilatato, reflexo, ad- 

 presso. 



Diam. 21, alt. 18 mill. 



This species is said to be found in Sicily, but there may be a 

 mistake. 



15. Helix Adamsii, Pfr. Hel. testd imperforatd, orbiculato-con- 

 vexiusculd, leviter striatuld, nitidissimd,fulvescenti-luted, unicolore 

 velfasciis saturate fulvis et castaneis multimode ornatd et radiatd ; 

 spird convexiusculd, obtusd ; anfractibus 3j-4 vix convexiusculis, 

 ultimo basi planiore ; aperturd rotundato-lunari ; peristomate sim- 

 plice, acuto, margine columellari subobliquo, dilatato, albo. 



Diam. 12, alt. 6^ mill. 



Hab. Pitcairn's Island and Opara. Collected by Mr. Cuming. 



The late patriarch of the island pointed out this shell to Mr. Cu- 

 ming, and at his request I have the pleasure to dedicate it to the 

 venerable man's memory. 



16. Helix bahamensis, Pfr. Hel. testd angust^ umbilicatd, de- 

 pressd, tenui, corned, costulato-striatd. ; spird brevi, convexiusculd ; 

 anfractibus 4| vix convexiusculis, ultimo antic'P deflexo ; aperturd 

 subhorizontali, transverse ovali ; peristomate simplice, tenui, mar- 

 ginibus approximaiis, supero breviter expanso, basali reflexo, intus 

 dente triangulari, valido munito, columellari dilatato, reflexo, um- 

 bilicum angustum, pervium semitegente. 



Diam. 17, alt. 7^ mill. 

 Hab. Bahamas. 



17. Helix bermudensis, Pfr. HeL testd umbilicatd, lenticulari, 



2B2 



