Hutton. — On New Zealand Land Mollusca. 189 



3. Hairy species. Charopa, Thera, and Thalassia portia. 



4. Bibbed species in Pupa, Patula, Thera, Fruticicola, Strobila, Amphi- 

 doxa, Charopa, Psyra, and Phacussa. 



5. Smooth or striated species in Microphysa, Endodonta, Phrix- 

 gnathus, Omphidoxa, Pyrrha, Gerontia, Therasia, Thalassia, Paryphanta, 

 and Elcea. 



6. Surface malleated in Rhytida. 



7. Trochiform species in Thera, Endodonta, Phrixgnathus, Leptopoma, 

 Omphalotropis. 



8. Shell turreted in Realia, Pupa. * 



9. Shell depressed but keeled in Endodonta, Phrixgnathus, Amphidoxa, 

 Therasia, Thalassia. 



10. Discoidal or very depressed species, with rounded periphery in 

 Patula, Microphysa, Fruticicola, Phrixgnathus, Amphidoxa, Gerontia, Charopa, 

 Psyra, Phacussa, Paryjihanta, Elaa. 



11. Species with very wide umbilicus in Patula, Phrixgnathus, Gerontia, 

 Amphidoxa, Charopa, Paryphanta, Elaa, Cyclotus. 



12. Species with narrow umbilicus in Fruticicola, Stobila, Phrixgnathus, 

 Amphidoxa, Therasia, Thalassia, Phacussa, Paryphanta, Rhytida. 



13. Imperforate or subperforate species in Carthaa, Fruticicola, Endo- 

 donta, Phrixgnathus, Amphidoxa, Psyra, Therasia, Pyrrha, Phacussa, Vitrina, 

 Trochomorpha , Paryphanta. 



14. Species with spiral sculpture in Patula egesta, Charopa ida, Thalas- 

 sia obnubila, Cyclotus, Cyclophorus, and Omphalotropis. 



15. Sinistral species in Paxillus and Piplommatina. 



Sec. GONIOGNATHA. 



Jaw in separate pieces, the median one often triangular : marginal teeth 

 quadrate, usually broader than long, with several points. 

 Genus Carthaea, Hutton. 



Animal heliciform. Jaw formed by many quadrate, overlapping plates, 

 each higher than broad. Shell conoidly globose, the whorls slowly increas- 

 ing ; imperforate or narrowly perforate ; aperture lunate ; peristome 

 straight, acute, the columella!' margin rather reflexed. 



C. kiwi, Gray (1843). H. irradiata, Gould (1846). 



Closely striated, periphery rounded. White with irregular radiating 

 purplish streaks. Diameter -4. Dentition, 28-1-28. 



The animal is unknown. 



North Island. — Hokianga ; Bay of Islands (Gould) ; Omaha (T. Kirk) ; 

 Titirangi (Cheeseman) ; Napier ; Wellington (T. W. Kirk). 



Allied to Helix radiaria from the Solomon Islands. 



