A REVISION OF THE AUSTRALIAN TURRIDH—HEDLEY. 299 
Clathurella hirsuta Bouge and Dautzenberg, Journ. de Conch., Ixi., 1913 
(1914), p. 198. 
Hab. Queensland:—5 to 8 fathoms, Murray Island (self) ; Mast 
Head Island (self). 
HETEROCITHARA RIGORATA Hedley. 
(Plate 1., figs. 109, 110.) 
Mangilia rigoruta Hedley, Proc. Linn. Soc. N.S.W., xxxiv., 1909, p. 459, 
pl. xliv., figs. 98, 99. 
Hub. Queensland:—5 to 10 fathoms, Hope Island (type, self) ; 20 
fathoms, Darnley Island (“ Chevert”’). 
HETEROCITHARA SERILIOLA sp. nov. 
(Plate 1., fig. 111.) 
Shell subeylindrical, turreted, apex pointed. Colour undetermined. 
Whorls eight. Sculpture :—Ruibs narrow, elevated, round-backed, alter- 
nating from whorl to whorl, in-bent at the summit, the shaft perpendicular 
and the base out-curved, thirteen on the penultimate and eleven on the last 
whorl, the rib before the varix evanescent; spirals are prominent cords 
crossing both ribs and interspaces, on the upper whorls three or four, on 
the last twelve; the uppermost spiral accentuates the shoulder angle; 
two or three on the base are thicker than the rest; the interspaces have 
microscopic grains set in canvas pattern. Aperture:—The mouth is long, 
narrow, and unarmed; varix larger than the ribs, rising at the insertion, 
the edge of its outer limb crenulated by spirals; sinus rather broad ; 
columella perpendicular; canal short and broad. Length 9 mm., breadth 
3 mm. 
This is related to H. rigorata, but is easily distinguished by its far 
larger size. P. gracilenta is comparable in size, but differs by its blunt 
apex, slighter ribs, and more fusiform contour. 
Hab. Queensland :—12 fathoms, Torres Straits (Brazier). 
HETEROCITHARA TRANSENNA sp. 100. 
(Plate 1., fig. 112.) 
Shell small, very solid, ovate-acuminate, turreted. Colour faded to a 
uniform gray. Whorls six. The protoconch is composed of two small 
smooth eleyated whorls. Sculpture :—The radials are prominent perpen- 
dicular discontinuous ribs, which are dislocated at but continue on the 
snout; they are nodose at the passage of the spirals, and wider spaced on 
the last whorl, being set at the rate of ten on the penultimate and eight 
on the last whorl; the spirals are strong evenly-spaced threads, nine on 
the last whorl and three on the one before. Aperture :—Varix broad and 
prominent, almost closing up the mouth; sinus open and rather shallow ; 
canal a mere notch. Length 5 mm., breadth 2 mm. 
