4 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



Subgen. Cingula, rieming, 1828. 



Sect. CINGULA, s.s. 



5. EissoiA suBFUSCA, Hutton. 



Rissoa sulfusca, Hutton: Cat. Mar. Moll. New Zealand, 1873, p. 28; 



Man. New Zealand Moll., 1880, p. 81. 

 Rissoa purpurea, Hutton: Cat. Mar. Moll. New Zealand, 1873, 



p. 29; Man. New Zealand Moll., 1880, p. 80; Proc. 



Linn. Soc. New South Wales, vol. ix (1885), p. 940. 

 Rissoia {Cingula) purpurea, Hutton: Tryon, Man. Conch., ser. i, 



vol. ix, p. 344, pi. Ixxi, fig. 89. 

 Rissoia ( Cingula) purpurea, Hutton, var. sulfusca, 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 puiplish-red, with a white 

 band below the sutures ; last whorl yellowish, also with a white band 

 below the suture. Aperture rounded, pej'istome continuous, thickened, 

 and slightly expanded. Operculum unknown. Long. 2"5, lat. 1*25 mm. 



Hal. — Stewart Island. 



Type in the Colonial Museum, Wellington. 



Yar. micronema, n.var. 



More cylindrical, protoconch purple, smooth, the rest of the shell 

 is seen under a lens to be marked with strong and close incremental 

 striae, crossed by numerous lirae. Operculum unknown. Long. 3, 

 lat. 1"25 mm. 



Hal. — Stewart Island (A. Hamilton). 



Type in my collection. 



Sect. ONOBA, H. & A. Adams, 1854. 



6. EissoiA Atjstralis (Tenison -Woods). 



Cingulina Australis, Tenison-Woods : Proc. Poy. 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, roimded, elevated lirse ; suture 

 deeply impressed ; aperture oblong, entire, outer lip somewhat 

 thickened. Long. 2, lat. -6 mm. 



Hal. — 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. 



