S.A. 
Ai»ri 
NAT., VOL. XVI. 
l 10th, 1935. By Bernard C. 
Cotton and f. K. Godfrey. 
17. 
on the penultimate, and up to twenty on the last whorl, of these 
a double row compose the peripheral keel; on either side of the 
keel the interstices are wider than usual; irregular oblique wave- 
like radial folds, twenty-two on last whorl, which raise beads on 
the keel rows, and there cease abruptly; on base, incipient rad- 
ials bead the inner spirals; whorls about six or seven; aperture 
oblique, trapezoidal; outer lip simple, sharply angled by the 
periphery; columella insertion slightly reflected over the minute 
umbilicus. Height 7‘ diarn. 6 mm. Dredged, 95-100 fathoms south 
of Cape Wiles. (Type locality — 100 fathoms, seven miles east 
of Cape Pillar, Tasmania.) 
C. zietzi Verco 1905. Text fig. 1. Mr. Zietz was a form- 
er director of the South Australian Museum. Conic, imperforate, 
moderately solid; horn coloured, peripheral band white, main 
cinguli obscurely dotted with light chestnut, peripheral band with 
larger and plainer spots; whorls eight, including protoconch of 
one smooth turn, slightly mammillate; first two whorls rounded, 
next three straight sloping, last two rather convex; suture mod- 
erately deep, slightly overhung by peripheral lira; penultimate 
whorl with six spiral cinguli and two inter-liral threadlets; body 
fig. 1 — Calliostoma (Fautor) zietzi Verco x 4f (Left and 
right). Enlarged sculpture (centre) [after Kestcvcn|. 
whorl with six cinguli, rather narrower than the interspaces and 
five threadlets, barely angulated below its centre by a stouter 
cord; base rounded, with eight concentric lirae, flat, much wider 
than the interspaces; spire and base finely obliquely incised with 
growth lines; aperture roundly quadrate; columella nearly 
straight, slightly oblique and excavated, subtruncate below; 
outer lip simple, crenulated by cinguli. Height 8, diam. 5 mm. 
Dredged— Backstairs Passage; Gulf St. Vincent; off Porpoise 
Head; S. of Tunk Head; Beachport; 16—200 fathoms. (Type 
locality— Backstairs Passage, at 12, 17, and 20 fathoms; nine 
dead). Hopctoun, 35 fathoms, Western Australia. 
