Endodonta.] GASTROPODA. 725 



Type in my collection. 



Hab. Mauriceville, Forty-mile Bush (H. S.). 



Remark. The only specimen I found is not quite adult. 



4. Group of Endodonta corniculum. 



Shell having nearly straight radial riblets ; peristome straight ; 

 umbilicus moderately wide, more or less conical. Protoconch spirally 



striate. 



KEY TO SPECIES. 



1. Riblets 4 per millimetre; whorls 4 ; dimensions, 2 min. by 



1 mm. . . . . . . . . segregata. 



2. Riblets 12-13 per millimetre ; whorls 4^ ; dimensions, 2-7 mm. 



by 1J mm. . . . . . . . . . . kenepuruensis. 



3. Riblets 24 per millimetre ; whorls 4i ; dimensions, 3 mm. 



by 1 mm. . . . . . . . . - . corniculum. 



4. Riblets 3~5 per millimetre ; whorls 4 ; dimensions, 2-5 mm. by 



| mm. . . . . . . . . . alloia. 



5. Riblets 40-45 per millimetre ; whorls 4 ; dimensions, 2 mm. 



by 1 mm. . . . . . . . . . . Presloni. 



28. Endodonta alloia, Webster, 1904. Plate 28, fig. 15. 



Endodonta (Charopa) alloia, AVebster, P. Mai. S., vi, 1904, 108, f. 4 in text 

 p. 106. 



Shell minute, umbilicated, subdiscoidal, finely radially rib-striate, 

 yellowish-brown, silky. Sculpture : Protoconch faintly spirally striate ; 

 succeeding whorls radiately and very delicately ribbed, riblets about 

 35 per millimetre, almost straight, sloping slightly at suture and over 

 periphery, backwards in the brephic stage ; interstices microscopically 

 finely reticulated. Colour amber to rich golden-brown, the last whorl 

 darkest. Spire slightly elevated, broadly convex. Protoconch of 1| 

 elevated whorls. Whorls 4, rounded, last not descending, periphery 

 and base rounded. Suture deep. Aperture vertical, lunate. Peristome 

 simple, margins converging. Columella nearly vertical. Umbilicus 

 open, not perspective, one-fifth of the diameter. 



Diameter, 2-5 mm. ; height, 0-75 mm. 



Animal with the foot bright yellow. 



Type in Mr. Webster's collection. 



Hab. Waiuku ; very scarce. 



29. Endodonta corniculum, Reeve, 1852. Plate 28, figs. 16, a, b. 



Helix corniculum, Rve., Conch. Icon., vii, pi. 133, f. 826. Patula corniculum, 

 Rve. : Button, T.N.Z.I., xvi, 192. Charopa corniculum, Rve. : Hedley 

 and Suter, P.L.S. N.S.W. (2), vii, 655. Endodonta (Charopa) corniculum 

 Rve. : Suter, J. de Conch., xli, 264. Helix eta, Pfeiffer, M.H. Viv., iii. 

 1853, 107; P.Z.S., 1852 (1854), 57: Hector, Cat. Land Moll. N.Z., 14: 

 Man. Conch. (2), iii, 24, pi. 3, f. 12. Patula eta, Pfr., Nomencl. Hel. 

 Viv., 98 ; Hutton, M.N.Z.M., 9. 



Shell very small, subdiscoidal, umbilicated, very finely radially 

 striated, silky, waxen. Sculpture of the protoconch formed by dis 



