fi.A. NAT., VOL. XV. 
Nov. 30 th , 1933 . By Bernard C. Cotton and F. K. Godfrey. 23. 
locality—63-75 fathoms off Port Kembla X.S.W.). Medley states 
that the lip does not project in a lobe over the base like that of 
S. aequatoria Medley 1890, which is of similar size, shape and 
general appearance; S. australis also differs from that shell bv 
having the base sculptured by a few distant coarse radii instead 
of dense fine riblets. South Australian and Cape Pillar (Tas¬ 
mania) specimens have the spirals less valid. 
S. gunteri sp. nov. PI. 1, fig. 11. “Gunter’s Schizotrochus.” 
Minute, very thin, semitranslucent, trochiform, spire slightly gra¬ 
date, base tumid, narrowly perforate; white: axial riblets, very 
numerous, microscopic, appearing more like accremental striae, 
on upper surface of last whorl (to the naked eye apparently 
smooth); spiral threads on base, numerous, indistinct, crossed 
by even less distinct radials; whorls four; slit fasciole margined 
by two thin, low keels. Height 1.1, diam. major 1.5, minor 1.3 
mm. Locality—off Beachport, South Australia, 150 fathoms. 
(Reg. No. D10769 S. Aus. Mus.). Also, Cape Pillar, Tasmania, 
100 fathoms. This species may, at first sight, appear to be a 
juvenile S. australis Hedley, but an immature shell of that species, 
about the same size, shows stronger sculpture visible to the naked 
eye, greater solidity of shell structure, spire higher and more gra¬ 
date. Named after Rev. H. A. Gunter, Chairman (elected Aug. 
1933) of the South Australian Naturalists, and an able concholo- 
gist. 
ScLismope Jeffreys 1856. Slit, enclosed, forming a hole 
in the outer wall of the aperture; slit fasciole shorter, not over 
one-and-a-half whorls in length. Type—Scissur ell a cingulata 
Costa 1861 (Mediterranean). Schismopc is a Scissurella in which 
the anal slit becomes closed in the adult, and transformed into 
an oblong perforation like one of the holes of a Haliotis . 1 he 
species inhabit deep water; there are a number of fossil forms 
described. 
S. atkinsoni Tenison-W oods 1877. PI. 1, lig. 12. (— S. 
tasmanica Petterd 1879: — S. carinata Watson 1886: not S. 
carinata A. Adams 1862 from Japan). “Atkinson’s Schismope.” 
Minute, globo-depressed; brown; spiral lirae, below the peri- f 
phery, about three, rather separated and three more around the 
umbilicus; growth striae fine, scarcely perceptible; spire short, 
low, blunt; whorls three, rapidly widening, plane above; last 
i whorl very rapidly descending toward the aperture, with a strong 
heel at the shoulder, occupied by the anal fasciole, and another 
heel at the periphery the space between them concave; the keels 
are obsolete for a short distance behind the aperture; slit fasciole 
