Hutton. — On New Zealand Land Shells. 177 



Phrixgnathus phrynia, n. s. 



Shell minute, conoidal, umbilicated, the epidermis plicated: colour pale 

 horny, radiately streaked with rufous. Spire conoidal, acute ; periphery 

 obtusely angled ; suture impressed ; whorls 5, rounded, smooth, the 

 epidermis rather distantly wrinkled ; umbilicus narrow, open ; aperture 

 slightly oblique, rotundly lunar ; peristome thin, the margins approxi- 

 mating ; the columellar margin scarcely reflected. Greatest diameter *1, 

 least -09 ; height *09 inch. 



Hob. Wanganui (T. W. Kirk). 



Very near P. celia, but differs in the plaited epidermis. 



Phrixgnathus ariel, n. s. 



Shell small, depressed, scarcely shining, finely 'ribbed, subperforate ; 

 colour pale yellowish horny. Spire conoidal, depressed, with 5 slowly 

 increasing whorls, the last obscurely carinated ; finely striately ribbed, the 

 base delicately spirally striatulated ; suture impressed ; umbilicus covered ; 

 aperture oblique, lunate ; peristome thin, the columellar margin reflected. 

 Greatest diameter 'IS, least -12 ; height -1. 



Flab. Auckland (T. F. Cheeseman). A single specimen only. 



Distinguished from the other species of the genus by being finely ribbed ; 

 and from H. pcecilosticta by the columella not being thickened, and the suture 

 not margined. From H. granum it differs in colour, and in having the 

 umbilicus covered. 



Jaw as in P. celia. Dentition, 32-1-32. All the teeth longer than 

 broad, and the reflexed portion very short. Central tooth unicuspid ; 

 laterals and marginals bicuspid, all with minute points. 



Phrixgnathus titania, n. s. 



Shell globosely conoidal, umbilicated, striated ; pale horny irregularly 

 banded with chestnut. Spire conoidal, rather obtuse ; periphery obtusely 

 carinated ; suture margined ; whorls 5-6, rounded, very finely striated ; 

 umbilicus broad, perspective ; aperture very slightly oblique, subcircular ; 

 peristome thin, the margins closely converging ; columellar margin not 

 reflected. Greatest diameter -14, least '12 ; height *10 inch. 



Hob. Dunedin (F. W. H.). 



Differs from P. sciadium in the higher spire and the obtuse keel. 

 Phrixgnathus (?) haastii, n. s. 



Shell minute, depressed, smooth, shining, umbilicated ; colour horny, 

 usually with irregular radiating bands of reddish brown and white. 

 Spire conoidal, depressed ; whorls 4J, slowly increasing, rounded, the last 

 subcarinated, obscurely distantly striated ; suture impressed ; umbilicus 

 moderate, pervious, showing the penultimate whorl ; aperture subvertical, 

 lunately subcircular ; peristome thin, arched, the margins not approaching. 

 Greatest diameter '12, least *1 ; height "07 inch. 

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