18. 
South Australian Shells. 
S.A. NAT., VOL. xVj. 
April 10th, 1935. 
C. spinulosum Tate 1893 (not Zizyphinus mbr opunctatus 
A. Adams 1851, from North Australia). “The Prickly Callios- 
toma.” PL 1, fig. 6. Broadly conical, imperforate, pale reddish- 
yellow with small white blotches; spiral lirae, three on the pen- 
ultimate whorl, crossed by equal sized, stout, slightly obtuse, 
oblique ridges; interstitial pits deep, rhombic, smooth; points of 
intersection of spirals and oblique costae are produced into spin- 
iform granules; spiral ridges on body whorl are increased by a 
slender lira interposed between the first and the second, and by 
a subperipheral lira nearly equal in size to the peripheral one, 
the two together forming a truncated sulcated keel; whorls six- 
and-a-half, slightly imbricating; base almost flat with about six 
concentric lirae, somewhat depressed, subacute, and showing a 
tendency to sub-granulose, crossed by strong radial growth lines. 
Height 5, diam. 4.5 mm. Uncommon, beach Moonta Bay, also 
Western Australia — Bunbury beach. Dredged, Beachport to 
Neptune Islands, 9-110 fathoms, also Bunbury, Western Aus- 
tralia, 22 fathoms. (Type locality — Moonta Bay). Trellised, 
and set as it were with prickles, this species resembles C. rubre- 
pun datum Adams from North Australia, but differs by its sub- 
imbricating whorls and fewer lirae. 
C. meyeri Philippi 1848 ( Troclius ) (= T. armillatus Wood: 
— Z. armillatus Reeve 1863: = T. levis Hombron & jacquinot 
1854, not T. levis Wood or Chemnitz: = Z. euglyptus Adams 
1854). PL 1, fig. 7. “Meyer’s Calliostoma.” Strictly conical, 
carinated, imperforate, thin but rather solid; shining, pale yel- 
lowish or pinkish, with irregular, rather pale vertical bands of 
light yellowish-brown, often broken into maculations, and radi- 
ating on base; numerous spiral granose lirae, seven on the pen- 
ultimate, the antepenultimate, and upper surface of last whorl; 
sometimes there are interstitial threads between the granose lirae- 
the flat base has twelve or thirteen concentric lirae, mner ones 
stronger, decidely beaded, the three or four outer more separated, 
less beaded; the angular periphery is formed of a double beaded 
ridge ; spire conic, elevated with straight lateral outlines'; whorls 
nine; protoconch subacute, smooth; the two earlier whorls follow- 
ing the protoconch are tri-liratc; last whorl angular at periphery, 
flat beneath, indented in the centre around the insertion of the 
columella; mouth rhomboidal, oblique, angled on the outer part, 
above the angle thickened inside by a heavy callus or pearly sub- 
marginal deposit;^ columella oblique, arcuate, slightly toothed 
at base. Height 36, diam. 34 mm. Not common. Port Victor, 
measuring 34 x 32.5, also 34 x 31 mm.; Guichen Bay, several, 
all with green apices and comparatively wide; also on Ocean 
Beach, Kangaroo Island, and St. Francis Island. Not reported 
