Hutton.— On New Zealand Land ATollusca. 209 



North Island.— Waikato (Hochstetter, F.W.H.) ; Wainuiomata (T. W. 

 Kirk). 



Genus Testacella, Guvier. 



Mantle divided into numerous lobes. Teeth barbed at the point. Shell 

 auriform, sub-spiral. 



T. vagans, Hutton (1882). 



Slate grey above, passing into yellowish white on the sides. Dentition, 

 15-0-15. 



North Island. — Waiuku (T. Kirk) ; Auckland (Cheeseman). 

 Sec. T.EXIOGLOSSA. 



Animal with a rostrum, the respiratory chamber open in front ; eyes at 

 the base of the tentacles. Foot with an operculum. Dentition, 3-1-3. 



Fain. Qyclophoiidm. 



Operculum horny or calcareous, spiral, the nucleus central. 

 Sub-fam. Cyclotiiw. 



Operculum of two lamina?, the inner horny, the outer calcareous. 

 Genus Cyclotus, Guilding. 



Shell discoidal, or turbinately depressed, widely umbihcated ; aperture 

 entire, circular ; peristome simple or double, straight, expanded, or re- 

 flexed. 



C. chabitiax, Hutton (1883). 



Shell with spiral raised stria? ; periphery with an undulating keel ; 

 umbilicus wide, perspective. Diameter -1 inch. Operculum circular, of 

 many whorls, the calcareous lamina thickened round the margin, and with 

 a raised centre. 



North Island. — Horokiwi, Wellington. 



Sub-farm OydophoHna. 



Operculum horny. 



Genus Leptopoma, Pfeiffer. 



Shell globosely turbinate or conical, narrowly umbilicated ; peristome 

 simple, reflexed, the margins wide apart, sometimes united by a very 

 thin callus. Operculum circular, horny membranous, narrowly whorled, 

 flat. 



L. pannosa, Hutton (1882). 



Conical, brown, covered with a dark fuscous, ragged epidermis ; peri- 

 stome single. Diameter -11 inch ; height -13 inch. 



South Island. — Greyniouth (K. Helms). 



L. calva, Hutton (1882). 



Conical, reddish-brown, smooth ; peristome single. Diameter '08 ; 

 height -13 inch. 



South Island, — Greyniouth (Helms). 

 14 



