diantibus et spiralibus distantioribus granulato - decussata, 

 castanea ; spira conoidea , acutiuscula ; sutura pallida ; anfr. 6 

 convexiusculi , lente accrescentes , ultimus convexior, non 

 descendens, medio carina albizonata munitus, subtus modice 

 convexus, l'adiato-striatus , sericinus ; apertura obliqua , lu- 

 naris, intus albido-callosa; perist. rectum, raargine basali 

 subincrassato , superne supra perforationem subdilatato. — 

 Diam. maj. 25, min. 22, al*. 14 mill. (Mus. Cuming.) 



Helix albizonata Duhrn in Proc. Zool. Soc. 1858. p. 133. 



Habitat in insula Ceylon. 



224 a. H. Arx Benson. f 



„Testa anguste perf'orata, acute conica, tenui, striis* 

 minutissimis confertissimis obliquis; lirisque 3— 4 spiralibus, 

 validis, superne sculpta, subtus laeviori, translucente, oliva- 

 ceo-cornea; spira gracili, conica, lateribus concavis, sutura 

 marginata, apice acutiusculo, hyaline; anfractibus 7^/ a , su- 

 perioribus convexiusculis , tum planiusculis, ultimo acute 

 carinato, subtus convexiusculo ; apertura obliqua, trapezi- 

 formi, peristomate recto, acuto, margine columellari bre- 

 viter reflexo, superne perforationem subtegente. — Diam. 

 maj. 10, min. 9, axis 7 1 / 2 mill." (B.) 



Helix Arx Bens, in Ann. and Mag. N. II. 1859. 

 Mart. p. 186. 



Habitat ad collem Therabuin , vallis Tenasserim 

 (Theobald). 



227a. H. Attegia Benson. f 



„Testa anguste perforata, conica, tenui, striatula, liris 

 tenuibus vix elevatis, remotiusculis, spiralibus, striisque 

 minutissimis interpositis decussata, pellucida, cornea; spira 

 subanguste conica, sutura leviter impressa, apice acuto, 

 pallido; anfractibus 7 convexiusculis, ultimo filoso-carinato, 

 subtus convexiusculo; apertura vix obliqua, rhombeo-lunari, 

 peristomate acuto, recto , margine columellari verticali , su- 

 perne valde dilatato -reflexo, perforationem subtegente. — 

 Diam. maj. 8, min. 7, axis 8 mill." (B.) 



1* 



