HELIX— Plate LXXIII. 



Species 378. (Mus. Cuming.) 



Hemx Souleyetiana. Ilel. testa angusti umbilicatd, 

 orbiculari-depreud, fuhescente, :ond castaned angiutd 

 infra carinam, supeme cot{fertim costuhto-atriatd, 

 lineU tpiralibiis obsolete decussatd ; spird oblusd ; an- 

 fractibus sex, vix convexiusculis, ultimo acute angulato, 

 basi glabra, nitido ; aperturd truncato-ovali ; perislo- 

 mate alio, breviter expanso, marginilnis conniventibus. 



Souleyet's Helix. Shell narrowly umbilicated, orbicu- 

 larly depressed, fulvous, with a narrow chestnut zone 

 beneath the keel, closely rib-like striated at the upper 

 part, obsoletely decussated with spiral lines ; spire 

 obtuse ; whorls six, rather convex, the last sharply 

 angled, smooth and shining at the base ; aperture 

 truncately oval ; lip white, shortly expanded, margins 

 approximating. 



Petit, Re\-ue Zool. Soc. Cuv. 1841. p. 99. 



Hab. Seychelle Islands. 



Of a silken aspect above, arising from its minute de- 

 cussated sculpture, and shining beneath, with a very small 

 umbiliciis. 



Species 379- (Mus. Cuming.) 



Helix Schumacheeiana. Eel. testa umbilicatd, orbi- 

 cular i-depressd, ustulato-oVwaced, undique subtiliter 

 corrugato-decussald; spird brevissimd, obtusd; anfrac- 

 tibus quinque ad sex, plano-convezis, ad auturas tenui- 

 marginath, ultimo acute carinato ; umbilico subangusto, 

 pervio, prof undo ; aperturd lunari-ovatd, peristoma/e 

 simplici. 



Schumacher's Helix. Shell umbilicated, orbicularlv 



depressed, burnt-olive, finely eorrugately decussated 

 throughout; spire verj' short, obtuse; whorls five to 

 six, flatly convex, finely margined at the sutures, last 

 whorl sharply keeled ; umbilicus rather narrow, open, 

 deep ; aperture lunar-oval, lip simple. 



Pfeiffek, MSS. (Mus. Cuming.) 



Ilab. Borneo. 



A new species of the Nanina form lately received from 



Borneo. 



Species 380. (Mus. Cuming.) 



Helix Bcsbyi. Hel. testa late umbilicatd, depretta, sub- 

 discoided, opaco-albd, epidermide craasd, glaird, nitidd, 

 saturate viridi, peristoma stiperante, indutd ; spird 

 plaiid, subrugosd ; anfractibus quatuor ad quinque, 

 convexiusculis, ultimo glabro, antice deflexo et depresso ; 

 umbilico lato, perspectico ; aperturd oblique lunato- 

 ovali, iutus ccrrulescente ; peristomate simplici, undique 

 inflexo. 



Busby's Helix. Shell broadly umbilicated, depressed, 

 subdiscoid, opake-white, covered with a thick, smooth, 

 shining, dark green epidermis, which curls over the 

 lip ; spire flat, subrugose ; whorls four to five, rather 

 convex, the last smooth, deflected and depressed in 

 front ; umbilicus broad, perspective ; aperture ob- 

 liquely lunar-oval, bluish within ; lip simple, turned 

 inwards. 



Gray, Ann. and -Mag. Nat. Hist. vol. vi. p. 317. 



Hab. New Zealand ; Dietfenbach. 



This species may be readily distinguished by its very 

 peculiar thick horny epidermis ciurling over the margin of 

 the aperture. 



