SUTER: NEW ZEALAND RISSOIID®. 
Subgen. Crnevta, Fleming, 1828. 
Sect. CINGULA, 5.8. 
5. Rissora susrusca, Hutton. 
Rissoa subfusca, Hutton: Cat. Mar. Moll. New Zealand, 1873 p. 28; 
Man. New Zealand Moll., 1880, p. 81. 
Rissoaw purpurea, Hutton: Cat. Mar. Moll. New Zealand, 1873 
p. 29; Man. New Zealand Moll., 1880, p. 80; Pras, 
Linn. Soc. New South Wales, vol. ix (1885), p. 940. 
Rissoia (Cingula) purpurea, Hutton: Tryon, Man. Conch., ser. r 
vol. ix, p. 344, pl. Ixxi, fig. 89. ; 
Rissoia (Cingula) purpurea, Hutton, var. subfusca, Hutton: Tryon, 
Man. Conch., ser. I, vol. ix, p. 344. 
Shell small, subulately elongated, smooth, not polished; whorls 6, 
flat, suture obscure, upper whorls purple, or purplish-red, with a white 
band below the sutures; last whorl yellowish, also with a white band 
below the suture. Aperture rounded, peristome continuous, thickened, 
and slightly expanded. Operculum unknown. Long. 2°5, lat. 1°25 mm. 
Hab.—Stewart Island. 
Type in the Colonial Museum, Wellington. 
Var. micronema, D.var. 
More cylindrical, protoconch purple, smooth, the rest of the shell 
is seen under a lens to be marked with strong and close incremental 
strie, crossed by numerous lire. Operculum unknown. Long. 3, 
lat. 1:25 mm. 
Hab.—Stewart Island (A. Hamilton). 
Type in my collection. 
Sect. onopa, H. & A. Adams, 1854. 
6. Rissora Avstratis (Tenison-Woods). 
Cingulina Australis, Tenison-Woods: Proc. Roy. Soc. Tasmania, 1875 
(1876), p. 146; and 1876 (1877), p. 151. 
Shell minute, subulate, turreted, thin, shining, transparently white; 
whorls 7, furnished with elevated rounded spiral keels, with smooth 
interstices, there being 5 on the last whorl (then 4, 3, etc.), base 
convex, ornamented with two spiral, rounded, elevated lire ; suture 
deeply impressed; aperture oblong, entire, outer lp somewhat 
thickened. Long. 2, lat. ‘6mm. 
Hab. — Stewart Island (one young specimen collected by 
A. Hamilton); Tasmania. | 
Tryon does not mention this species in his monograph. Rissoa 
Australis, G. B. Sby., is a Rissoina, and Tenison-Woods’ name may, 
therefore, be retained. There is also a Rissoa (Setia) Australis, 
Watson, but Tenison- Woods’ name has priority. 
