HELIX.— Plate CXLIX. 



kiioMii group, wc are indcbitd to the researches of Mr. 

 Ronald C. Gunn. 



Species 969. (Mus. Cuming.) 



11ei,i,\ hisllc.^t.\. lid. teslii awptilcr itnMlicald, So- 

 larilformi, jtecutiariler teniii currugalu-nlriald, striU 

 siibdialaidibits coiiceidricU mcisis deciinsatd, vivide oU- 

 taced, nUeute, apice rufescetite ; sj/ird coiivexo-depressd ; 

 aiij'raclibus sex, ad siiliiram breviplicatis, delude declici- 

 convexu, ultimo siilcu amplo mperjiciario supra et infra 

 )U)(a(o ; unibilico perspectivo, iiUus pUcalo-corriigalo ; 

 aperlurd subluitari ; peri-atomale simpUci, irdiis per 

 sulcum pecuUariler verriico-dentato. 



The double -gkooved Helix. Shell largely umbili- 

 cated, Solarium-shnped, peculiarly finely wrinkle-stri- 

 ated, decussated with rather distant eni;ravcd striffi, 

 bright olive, shining, tinged with red at the apex ; 

 spire convesly depressed ; whorls six, puckered at 

 the suture, then slantingly convex, last whorl marked 

 above and below by a large superficial groove ; umbi- 

 licus perspective, plicately wrinkled within ; aperture 

 sublunar ; lip simple, peculiarly wart-toothed within 

 along the ridge funned by the impressed groove. 



Pfeiffer, Pro. Zool. Soc. 1852. 



Hab. Van Diemen's Land ; Gunn. 



Another very peculiar typical species, collected also by 

 Mr. Gunn in the above-named eoimtrv. 



Species 970. (Mus. Cimiing.) 



Helix Minerva. Hel. tesld profunde vmbilicald, de- 

 preaao-orbiculari, tenuiculd, aubiilissime striata el mal- 

 leald, lutesceiile, versus apicem purpurascerde-Uvidd, 

 fascia intense caslaned angusld supra et infra cingu- 

 latd ; anfradibus fjualuor, plano-convexis, ultimo acute 



carinalo ; aperlurd lunari ; peristotnate simpltci, mar- 

 gine columellari sublali dilalaio. 



The Minerva Hf.lix. Shell deeply umbilieated, dt- 

 pressly orbicular, rather thin, very finely striated and 

 indented, yellowish, tinged with purple-livid towards 

 the apex, and encircled above and below with a nar- 

 row dark chestimt band ; whorls four, tiatly convex, 

 the last sharply keeled ; aperture lunar ; lip simple, 

 columellar margin rather broadly dilated. 



Pfeifkeu, Pro. Zool. Soc. 1852. 



Uab. Island of Celebes ? 



A shell of sim])le character, but yet distinct from any 



hitherto-described species. 



Species 971. (Mus. Cuming.) 



Helix Merziana. Hel. testa subampUter perspertiri um- 

 bilicatd, tenuicul-d, supra depresso-conicd, infra ptano- 

 cottcatd, casta neo -fused, strigii lutvis brevibus inler- 

 ruptis hie illic aspersd, infra circa umiilicum lutescente, 

 immaculatd ; anfradibus quinrjue, convexo-declicibus, 

 ultimo acute carinalo, carind aUiidu ; aperlurd ooato- 

 Irapezifornd; perisloinale simplici, margine basalt pau- 

 lulum rejlexo. 



Mekz's Helix. Shell somewhat largely perspectively um- 

 bilieated, rather thin, depressly-conical above, flatly 

 concave beneath, chestnut-brown, sprinkled here and 

 there with short interrupted yellowish streaks, yel- 

 lowish and unspotted beneath around the umbihcus ; 

 whorls five, convexly slanting, the last sharply keeled, 

 the keel whitish ; aperture ovately trapeziform ; lip 

 simple, basal margin a little reflected. 



Pfeiffer, Pro. Zool. Soc. 1852. 



llab. St. Christoval, Solomon's Island. 



Typically the same as 11. Solarioides, but specifically 



distinct. 



