670 GASTROPODA. [Pulinonutu. 



rounded. Columella short, vertical, arcuate, slightly reflexed above. 

 Umbilicus narrow, perfectly open, pervious. 



Diameter, 3 ram. ; height, 2-1 mm. 



Animal unknown. 



Type in the Canterbury Museum. Christchurch. 



Ilab. Campbell Island, mostly on Dracophyllum, not uncommon 

 (W. K. Chambers). 



Remarks. I used six dried-up animals for preparing the jaw and 

 radula, but. curiously enough, I was unable to find a trace of these 

 organs ; they, no doubt, were only remnants of the animals. The 

 generic position of the species therefore remains somewhat uncertain, 

 but the characters of the shell are those of Phenacohelix. and. in a 

 much lesser degree, of Allodiscus. 



Genus 9. SUTERIA, Pilsbry, 1892. 



Suteria, Pilsbry, il The Nautilus," Sept. 5, 1892, 56. Type : Helix Ide, 

 Gray. Charopa, Hutton, 1884 ; not of Albers, 1860. Patulopsis, Suter, 

 1891 ; not of Strebel, 1879. Suteria, Pils., Man. Conch. (2), ix, 17. 



Animal rather short and narrow ; mantle subcentral, rather an- 

 terior, slightly reflexed over the peristome of the shell ; foot narrow, 

 extending behind the shell ; tail truncated, and furnished with a 

 mucous gland ; no locomotive disc. Eye-peduncles very long, cylin- 

 drical, approximate at their bases ; tentacles long. (Hutton.) 



Jaw with 30 flat plaits, each transversely striated. 



Dentition : Central tooth tricuspid, the mesocone long, ectocones 

 short and constricted on the outer sides. Lateral teeth similar, but 

 the entocone smaller than the ectocone. Inner marginals with 1 bifid 

 cusp, the outer with several subequal cusps. 



Shell thin and rather opaque, openly umbilicated, discoidal, the 

 spire flat ; periphery broadly rounded ; surface having low spirals, 

 and radial undulating cuticular lamellae bearing hairs : lip thin, 

 simple. 



Distribution. New Zealand ; a single species. 



1. Suteria Ide, Gray, 1850. Plate 26, fig. 11. a, b. 



Helix Ide, Gray, P.Z.S., 1849 (1850), 166 ; A.M.N.H. (2), vii, 66 ; Pfeiffer, 

 M.H. Viv., iii, 108 ; Conch. Cab. (2), i, 460, pi. 155, f. 34-36 ; Conch. 

 Icon., vii, pi. 130, f. 789. H. (Charopa) Ide, Gray : Hector, Cat. Land 

 Moll. N.Z., 13. Patula (Charopa) Ide, Gray, Nomencl. Hel. Viv., 98. 

 P. Ide, Gray : Hutton, M.N.Z.M.. 9. Charopa Ida. Gray : Hutton, 

 T.N.Z.I., xvi, 200; Tryon, Man. Conch. (2), ii, 210, pi. 62. f. 32-34. 

 Suteria Ide, Gray : Hedley and Suter, P.L.S. N.S.W. (2), vii, 642. Flam- 

 mulina (Suteria) Ide, Gray : Suter, J. de Conch., xli, 254 ; Pilsbry, Man. 

 Conch. (2), ix, 17, pi. 3, f. 24-26. 



Shell small, discoidal. umbilicated. pilose, thin, but very faintly 

 shining. Sculpture of the post-nuclear whorls consisting of radial 

 undulating cuticular lamellae, about 3 per millimetre, bearing long 

 thin cylindrical hairs ; the interstices with minute crowded and 



