70 
HELIX 14. 
Helix rufescens GraL Act. Bord. XI. p. i08. t. l. L 3?’^) Nec Pomi. 
Habitat in insula Madagascar? (Grat.) 
OI)H. Persimilis II. Pfciircri Pliil. (Nr. 106 ), at sculptura satis clisliiicla. 
^ 157. H, naninoidcs Bcnson. 
T. perforata, orbiculalo-convcxa, solidiuscula, pallide fulva, 
superne distincte et conferliin striata, lineis concentricis, saepe 
olisolelis suiidecussata, basi sublacvigata, distanler striatula; spira 
depresso-conoidca , apice oblusa; anIV. G vix convexiusculi, ulti- 
mus subangulatus, medio impressus; apertura transverse lunaris: 
perist. rectum, obtusum, subincrassatuin, ad j)erforationcm aper- 
tam I)revissime reflexum. — Diam. niaj. 2o, inin. 22, ait. 13 mill. 
fSpec. auliicnl. Mus. Brilt. et Coli. Xr. 88.) 
Helix naninoides Bens. in Aon. and mag, nat. hisl. IX. p. 486. 
— — Phil. Icon. II. 9. p. 2. t. 6. f. 3. 
— — Chemn, ed. II. Helix N. 138. t. 23. f. 7. 8. 
/y. Major: diam. maj. 33, inin. 29, ait. 20 niill. (Coli. Walton.) 
Habitat circa Singaporc, rarius in insula Cliusnn. 
Obs. Variat striis concentricis distinctis vel omnino obsoletis, coloro 1’ul- 
vido vel fere albo, carina magis minusve distincta. 
158. H. decussata (Nanina) Benson. ^ 
T. cornea, discoidea, subdepressa, umbilicata; spira exser- 
liuscula, obtusa; anfr. 7 supra plani, ultimus obsoleto angulatus; 
epidermis supra argute decussata, infra radialim striata; apertura 
transversa, limata. — Diam. 1 poli. , axis 0,35. (B.) 
Xanina decussata Bois, ia Journ. As. Soc. V. p. 330, 
Habitat in Bengalia. 
0 bs. «Diflert ab II. vitrinoidc sculptura, spira elatiore ol peripheria magis 
angulata.» (Bens.) 
159. H. Theodori Philippi. 
T. perforata, depressa, tenuis, subdiaphana, corneo-Iutesceus, 
superne conferlissime costulata, lineis concentricis impressis de- 
cussata, basi laevior, excenlriee striatula, lineis concentricis versus 
perforationem sensim evanescentibus; spira parum elevata, ob- 
lusiuscuia; sutura impressa, rufo obsolete marginata; anfr. GYa 
vix convexiusculi, lente accrescentes, ultimus obsolete angulatus; 
apertura depressa, lunaris; perist. simplex, reeluiu, margine colu- 
T orliiculiilo-coiiica , bubuiubilicala , tenui, subdiapiuma , rufosconlc. 
subtilissimo striata, striis granulosis; spira turgida, apice oblusa; anfractu ultimo 
aliquando fascia alboscenle cincto; labro simplico, acuto. — Alt. 16, diam 
27 mill. (Gral. K c ) 
