S.A. NAT , VOL. XV. 
June 12th, 1934. By Bernard C. Cotton and F. K. Godfrey. 
89 . 
is an intercalated line of small tubercles, and between two of the 
basal spirals. Beachport, 40 fathoms, 7 dead rolled and stuffed 
with sand and smaller shells. Cape Borda, 55 fathoms, 52, all 
immature but one, dead, and largely filled with sandy mortary 
material. 
C. plebejus Philippi 1851 ( Trochus ) ( — C. nodoliratus A- 
Ada ms 1851). “The Plebeian Clanculus.” Small, depressed, 
umbiiicate; pinkish brown, gray or yellow, the ribs articulated 
with dots of black and white, often forming radiating lines above, 
zigzag beneath, where yellow replaces pink in the ground colour; 
spire low conic, protoconch acute; whorls about five, coarsely 
lirate, sutures subcanalieulate; body whorl obtusely angular at 
periphery, its upper surface encircled by four coarse, somewhat 
beaded lirae, the upper two contiguous, the third separated bv 
wide intervals above and below it. the fourth peripheral, usually 
formed of two ridges close together, the interstices bearing num¬ 
erous fine spiral striae, and sharp microscopic incremental striae; 
base convex, concentrically sculptured with numerous (six to 
nine) smooth striae, in the intervals between which very num¬ 
erous microscopic striulae revolve; aperture rounded, oblique, 
outer and basal margins thickened, and minutely crenulated 
within; columella oblique not tortuous above, nor entering the 
umbilicus, but inserted upon the side; front edge nearly straight, 
denticulate at the base; umbilicus wide, not very deep, its mar¬ 
gin somewhat denticulate. Height 7, diam. 10 mm. Beach, not 
uncommon, from Clenelg River, South Australia to Fremantle, 
Western Australia, also dredged to 40 fathoms. (Type locality 
—South Australia). When typical!} developed it is easily recog¬ 
nised by the very coarse sculpture of the upper surface, and the 
minute concentric striation of the base and interstices. Alive 
under stones beyond tide marks. 
C. consobrinus Tate 1893 ( Clanculus ). “The Cousin Clan¬ 
culus. 7 ’ PI. 1, fig. 4. Depressed, umbiiicate; pinkish brown, 
sparsely black dotted; granulose lirae, four on penultimate whorl, 
equal and equidistant, and obliquely transverse raised threads; 
on body whorl, a small granulose lira between third and fourth, 
the fifth lira is slightly granulose, whilst the sixth (at the peri¬ 
phery) is broad and obtuse; interspaces between lirae are faint¬ 
ly spirally striate; base with seven concentric lirae, outer ones 
plain, others subgranose, with a few coincident striae in the 
interspaces; spire, low, conic, protoconch acute; whorls five, 
suture subcanalieulate; body whorl obtusely bi-angular at the 
periphery, base somewhat convex; aperture rounded, oblique; 
