34 MR. G. F. ANGAS ON NEW MARINE SHELLS. _—_[Jan. 16, 
around the umbilicus; aperture oblique, subquadrate ; outer lip 
simple; columella arcuate, slightly thickened and partly expanded 
over the umbilicus. 
Diam. maj. 1 inch, min. 10 lin., alt. 6 lin. : 
Hab. Found 30 miles in a-‘N.E. direction from the Burra Mines, 
South Australia (F. G. Waterhouse). 

This remarkable species is very similar in the character of its 
sculpture to H. silveri, Ang.; but the corrugations are less regular, 
the umbilicus is larger, the shell is flattened, and the last whorl 
very prominently keeled. 
~ 
5. Descriptions of two Genera and twenty Species of 
Marine Shells from New South Wales. By GroreE 
Frencu Aneas, C.M.ZS., F.L.S., F.R.G.S., &e. 
[Received January 11, 1877.] | 
(Plate V.) 
Purpura (CroniA) ANOMALA, n. sp. (Plate V. fig. 1.) 
Shell ovately fusiform, rather solid, ornamented with a brownish- 
orange band spotted with black encircling the last whorl, and appear- 
ing again just above the sutures of the upper whorls, and with irre- 
gular undulating longitudinal chestnut lines, strongest near the base 
of the last whorl; whorls 5, angulated at the upper part, distantly 
longitudinally ribbed, the ribs stout and rounded and becoming 
swollen and nodulous above, transversely finely ridged throughout ; 
spire elevated, apex sharp; aperture elongately ovate; outer lip 
arcuate ; columella nearly straight, with a moderate callus overlapp- 
ing the pillar. 
Length 43, breadth 2 lines. 
Hab. Dredged outside Port-Jackson Heads, in 25 fathoms 
(Brazier). 
& curious little shell, from deep water, which I have placed pro- 
visionally in Messrs. H. and A. Adams’s subgenus Cronia, represented 
by the Purpura amygdala, Kien. 
Genus Microvotuta, Angas. 
Shell small, ovately fusiform, solid, smooth, shining; spire as 
long as the aperture, apex papillary; whorls simple; aperture nar- 
rowly ovate ; columella with 4 strong transverse plaits, the anterior 
