120 
South Australian Shells. 
S.A» NAT , VOL. XV. 
Sept 20tii , 1934. 
Cantharidella Pilsbry 1889. Small forms with much the 
aspect of tiny Cantharidus; usually polished, narrowly or not 
perforate; conical, elongated. Type— Gibbula picturata Adams 
& Angas 1864. 
C. tiberiana Crosse 1863 ( Trochus ). “Tiberrs Canthari¬ 
della;” Imperforate, conical, rather thin; olivaceous with nac¬ 
reous reflections, with flexuous longitudinal grayish streaks; spire 
moderately elevated; suture impressed; whorls five and a half 
to six, subplanate, the last obtusely angulated; base obsoletelv 
striated and covered with spots of grayish-white; aperture ob¬ 
lique, quadrate, inside white, nacreous; columella somewhat ex¬ 
panded; outer margin simple, acute. Height 4.5, diam. 4.5 mm. 
Not common, beach, MacDonnell Bay, S.E., South Australia. 
(Type locality—Coodgee Bay, South Australia) (Pilsbry). 
C. balteata Philippi 1849 ( Trochus ). “The Girdled Can- 
tharidella.” Solid, conical, perforate; pale brown a white girdle 
articulated with vertical black lines encircles the upper whorls 
at their lower borders and is continued upon the periphery of 
last whorl; above this girdle are five elevated spiral lirae (punc¬ 
tate with black), and about twelve inconspicuous lirae on the 
base; whorls six, upper ones flat, body whorl (as high as all 
the others) bluntly angulated; columella almost vertical, rounded, 
with a slight tubercle in the middle and forming an angle with 
the basal lip; base shows oblique streaks formed by the coales¬ 
cence of black dots. Height 7, diam. 6 mm. Beach, Yankalilla. 
(Type locality—unknown). From Cl smaltata Fischer, it is 
more conical, has flatter whorls, columella vertical (not arcuate), 
subnodose, forming an angle with the basal lip. The lower whorl 
joins that above slightly within the edge of the periphery, so 
as to form a slightly imbricated spire. 
C. smaltata Fischer 1879 (Trochus). PI. 1, fig. 8. “The 
Smalt-Cantiiaridclla.” Conoid, obtuse, narrowly perforate; shin¬ 
ing, colour variable, chestnut or blue, sometimes maculated with 
green or brown, spirally zoned, the bands linear, narrow, pale, 
sometimes articulated with brown; protoconch whitish: whorls 
five, convex, finely obliquely striate; suture linear; penultimate 
whorl rather tumid, body whorl angulate, subplanate below and 
obsoletelv concentrically lirate; aperture subrotund, sulcate with¬ 
in; basal margin arcuate; columella regularly concave, arcuate, 
nearly closing the umbilical perforation above; umbilical area 
somewhat funnel shaped, white, striate, carinate at its margin. 
Height 6, diam. 6 mm. Yorke Penuinsula, Backstairs Passage. 
Also Western Australia; beach, Hopetoun. (Type locality— 
South Australia. We designate Spencer Gulf). Differs from 
C. tiberiana Crosse, by the more convex whorls and the rounded 
