S.A* NAT., VOL. XV. 
JU SE 12th . 1 934, By Bernard C. Cotton and J\ K. Godfrey. 87 
C. aloysii Tenison-Woods 1875. Conical, carinated, whit¬ 
ish or horny marked above with zigzag radiating stripes (some¬ 
times broken into dots) of sepia or black, below unicoloured 
white or sparsely dotted with black, peripheral carina with a 
series of black spots; spire rather straightlv conical, apex acute, 
whorls about six, sutures subcanaliculate; upper surface with 
coarse, conspicuously granose lirae, the first and sixth (or peri¬ 
pheral) being most prominent; base slightly convex, bearing six 
to seven concentric coarse, conspicuously granose separated 
lirae; mouth rhomboidal, outer lip iridescent and plicate within: 
basal margin rounded, denticulate; columella oblique, nearly 
straight, slightly folded above, bidentate at base; umbilicus (in 
adult) with a crenate marginal rib, white within; and perforating 
scarcely deeper than the insertion of the columella. Height 8. 
uiam 9 mm. Beach, Gulf St. Vincent. Guichen Bay, MacDon- 
nell Bay, \ ankalilla Bay. (Type locality—Tasmania). Tenison- 
Woods summarised it—a small species, quite distinct in the 
black and white coloration. Some shells from MacDonnell Bay 
are red spotted, others black. There are variations in sculpture 
similar to these in C. yatesi of which we consider it only a colour 
variant. 
C. phiJippii Kocli (Trochus). Conical, perforate; fusces- 
ent, marbled with purple or white; whorls plane, with a series 
of nodules at the suture, then three or four series of granules, 
the iast angulated; base plane, with seven rows of granules; mouth 
rhomboidal; lip 1 irate within; columella oblique, subsolute above, 
terminating below in an acute tooth. Height 11. diam. 12.5 mm. 
Beach. Hardvvicke Bay, Port Lincoln. (Type locality—Ade¬ 
laide). The whorls arc flat, but appear terraced because a nod¬ 
ose carina projects on the upper part, below the sutures; below 
this are two or three minutely granose spiral lirae, and one more 
strongly granose. forming the angle of the last whorl; colour 
seems to be quite variable, some examples are brown, with large 
white spots and dark purplish-red granules, others are reddish 
brown, with white and purple granules. Probably a variant of 
C. yatesi Crosse. 
C. ringens Menke 1843 ( Monodonta) (not M. ringens Phil¬ 
ippi 1846, preoccupied, a synonym of C. personatus Philippi 
1847). "'File Ringent Clanculus.” Perforate, conical; whorls 
seven, the first smooth, yellowish, following planulate, separated 
by canaliculate sutures, maculate with chestnut and white; spir¬ 
ally cingulate above with four elegantly granulose ridges, the 
upper and lower the larger, last whorl acutely carinated; base 
slightly convex, with eight to nine granose cinguli; mouth rhom- 
