70 IIELIX §. 14. 



Jlelix rufescens Grat. Act. Dord. XI. p. ios. i. i. L 3?*) Ncc Pctin. 

 llabilat in insula Madagascar? (Grat.) 



0))s. Persimilis II. PfeifTcri Pliii. {Nr. 106.), at scuiptura salis distincla. 



157. H. naninoidcs Benson. 



T. perforata, orbiculalo-convexa , solidiuscula , pallide mTva, 

 supenic distincte et confertiin striata, lineis concentricis, saepe 

 obsoletis subdecussata, basi subiaevigata, distanter striatula; spira 

 depresso-conoidea , apice obtusa; anfr. 6 vix convexiusculi, ulli- 

 nius subangulatus, medio iniprcssus; apertura transverse lunaris; 

 perist. rectuin, obtusum, subincrassatum , ad perforationem aper- 

 tam brevissiine reflexum. — Diam. maj. 25, min. 22, alt. 13 mill. 

 (Spec. authent. Mus. Britt. ct Coll. Ni\ 88.) 



Ilelix naninoides Bens. in Ann. and mag. nat. hisl. IX. p. 486. 



— — Phil. Icon. II. 9. p. 2. t. 6. f. 3. 



— — Chejnn. ed. II. Helix N. 158. t. 23. f. 7. 8. 

 fl Major: diam. maj. 33, min. 29, alt. 20 mill. ( Coll. Waiton.) 

 Habitat circa Singapore, rarius in insula Chusan. 



b s. Variat striis concenlricis distinctis vel omnino obsolclis , colorc ful- 

 vido vcl fere albo , carina magis minusve dislincta. 



158. H. decussata (Nanina) Benson. -f 



T. cornea, discoidea, subdepressa, umbilicata; spira exser- 

 tiuscuUi, obtusa; anfr. 7 supra plani, ultimus obsolete angulatus; 

 epiderinis supra argute decussata, infra radiatim striata ; apcrtura 

 transversa, lunata. — Diam. 1 poll. , axis 0,35. (B.) 



Nani7ia decussala Bens. in Journ. As. Soc V. p. 350. 

 llabitat in Bengalia. 



Obs. «DifTcrt ab H. vilrinoide sculptura, spira elatiore ct periphcria magis 

 anguhila.» (Bens.) 



159. H. Theodori Philippi. , -7:. '■/... ^ ;, 



i. periorata, depressa, tcnuis, subdiaphana, corneo-iulescens, 

 superne conferlissime costulata, lineis concentricis impressis de- 

 cussata, basi laevior, excentricc striatula, lineis concentricis versus 

 perforationem sensim evanescentibus; spira paruin elevata, ob- 

 tusiuscula; sutura impressa, rufo obsolete marginata; anfr. 6^/2 

 vix convexiusculi, lente accresccntes, ultinms obsolcte angulatus; 

 aperlura depressa, lunaris; perist. siinplex, rectum, margine colu- 



*) T. orbicuhtlo-conica , subumbiiicala, teuui, subdiapiiana, rufescenle, 

 suljliiissitne striata, slriis graimlosis; spira turgida, apice oblusa; anfractu ullimo 

 aliquando fascia albcscenle cinclo; labro simplicc , acuto. — Alt. 16, diam 

 27 milh (Grat. 1 c.) 



