336 HELIX &. 412. 
obliqua, lunata, late subrotundato-ovata, intus albo-caerulescente; 
peristomate albescente, acuto, vix expanso, incrassato, margine 
columellari in loco umbilicali subcompresso, castaneo-tincto. — 
Diam. 920—241, alt. 410—141 mill.» (M.) 
Helix: isilensis Villa in Alb. Helic. p. 80. 
—  — Mabille in Rev. et Mag. Zool. 1868. p. 14. 
—  serpeniina var. & Pfr. Mon. Hel. III. p. 196. 
Habitat in Sardinia et Corsica. 
9311. ?H. Magnettii Cantrainc. 
«Testa imperforata, depresso-convexa, supra conoidea vel 
compresso-convexa, infra convexa, solida, opaca, nitidiuscula, 
confertim striata, 2risea vel albido-lutescente, ac maculis nigris, 
castaneisque marmorata, subtus uni- vel bifasciata; spira co- 
noidea, quandoque subdepressa, convexa, sat elata; apice vio- 
laceo, macula rubra tincto, oculo armato, eleganter striato, nili- 
dulo, obtuso; anfractibus 5—5!/; subdepresso-convexis, regula- 
riter crescentibus, sutura impressa separatis, ultimo magno, 
rotundato vel compresso-rotundato, regulariter ac valde descen- 
dente, cirea locum umbilicalem inflato; apertura obliqua, lunata, 
ovato-rotundata, intus alba, pallide caeruleo vel roseo tincta; 
peristomate subacuto, intus inerassato, subexpanso; margine 
columellari compresso, in loco umbilicali valde adpresso, nigro- 
purpurascente maculato. — Diam. 20—22, alt. 141 —12 mill.» (M.) 
Helix Magnettü Cantr. Malac. médit. p. 108. 
— -— Mabille in Rev. et Mag. Zool. 1868. p. 15. 
—  serpentina Dupwy Moll. France p. 124. t. 4. f, 4. 
— — var. P[r. Mon. Hel. IL. p. 286. 
Habitat in Gallia, Corsica, Sardinia. 
2312. H. Cenestinensis Crosse & Debceaux. 4j 
« T. imperforata, turbinato-depressa, solidula, parum nitens, 
vix striatula, albida, zonis spiralibus, latiusculis, regularibus, 
nigro-castaneis, albido variegalis, transversim cincta; spira sub- 
depressa, apice obtuso, laevigato, pallide violaceo; sutura im- : 
pressa; anfr. 4!/,—43/, vix convexiusculi, ultimus antice paulu- 
lum descendens, subtus spiraliter nigro-castaneo bifasciatus; 
apertura obliqua, late lunaris, intus livide albida; perist. intus la- 
biatum, marginibus distantibus, fere subparallelis, columellari 
(et loco umbilicari) nigro-castaneo, subdilatato, basali et externo 
albis. — Diam. maj. 49, min. 46, alt. 44 mill.» (Cr.) 
