Mr. W. H. Bensou on new Species of Land- Shells. 209 



with an oblique cartilage-pit in each valve; primary teeth none. 

 Valves simple within. 



The deep sinus of the pallial line, together with the form of 

 the valves and the pellucid vitreous texture of the shell, clearly 

 show that this genus belongs to the Scrobiculariate division of the 

 Telliiiidae, and not very far from the Abra of Leach or Syndosmija 

 of Recluz. 



1. Theora iridescens, Hinds. 

 Necera iridescens, Hds. Proc. Zool. Soc. 1843, p. 78. 

 Hah. Yobuko. 



3. Theora fragilis, A. Ad. 

 . Neeerafragilis, A. Ad. Proc. Zool. Soc. 1855, p. 226. 

 Hab. Niegata ; 7 fathoms, 



3. Theora nitida, Gould. 

 Theora nitida, Gld. Otia Conch, p. 162. 

 Hab. Seto-Uchi : Simonoseki ; 7 fathoms. 



Subgenus Endopleura, A. Ad. 

 Shell pellucid, gaping at both sides. Hinge with a bifid 

 primary tooth in front of the oblique cartilage-pit. Valves with 

 an internal rib extending from the beaks obliquely towards the 

 anterior side. 



Endopleura lubrica, Gould. 

 Theora lubrica, Gld. Otia Conch, p. 

 Hab. Hakodadi; 10 fathoms : Niegata, 7 fathoms. 



XXIII. — Characters of new Land-Shells from the Mahabaleshwar 

 Hills in Western India, and from Agra in the North-west 

 Provinces. By W. H. Benson, Esq. 



Achatina Arthuri, B. 



A. testa OTato-conica, irregulariter plicato-striata, lutco-fulva, polita, 

 translucente ; spira ovate- conica, apice obtuse, sutura impressa ; 

 anfractibus 7|, convexiusculis, prope suturam subcreimlatis ; aper- 

 tura subverticali, elliptico-ovata ; peristomate crassiusculo, callo 

 parietali infra albido ; margine columellari oblique truncate. 

 Long. 19, diam. 10, apert. long. 8 mill. 



Habitat ad Neher (Malcolm Peth) montibus Mahabaleshwar dictis. 

 A single specimen, in a state too imperfect for description, 

 was taken by my son, Lieut. Arthur E. Benson, then in the 

 10th Hussars, at the hill-station in question, in 1853. I sent 

 a rough sketch to the Rev. S. B. Fairbank, who searched care- 

 fully for it, and has kindly furnished me with three living spe- 



