A REVISION OF THE AUSTRALIAN TURRIDE—HEDLEY. 269 
Cithara lyrica Schepman, Siboga Exped. Monogr., xlixe., 1913, p. 435. ° 
Id. Melvill, Proc. Malac. Soe., xii., 1917, p. 181, pl. x., fig. 3. 
Cythara cylindrica var. lyrica Smith, Zool. Coll. “ Alert,” 1884, p. 41, 
pl. iv., fig. H. 
Hab. Queensland :—7 fathoms, Port Curtis (Coppinger). 
HUCITHARA MONOCHORIA sp. nov. 
(Plate xlvi., fig. 63.) 
Shell small, stout, solid, biconical. Colour russet-brown, with a 
definite buff band on the shoulder covering three spirals, and a less 
definite buff band on the base; penultimate, antepenultimate whorls, and 
varix also buff. Whorls six and a half, of which two and a half compose 
the sharply differentiated protoconch. Sculpture :—The earlier whorls of 
the protoconch are smooth, and the last has about twenty delicate radial 
riblets; the ribs on the adult shell are broad, prominent, perpendicular, 
and discontinuous, at first eleven, at last nine; both ribs and interstices 
are traversed by flat-topped elevated spirals, spaced more than their 
breadth apart, on the last whorl twenty-five, on the penultimate eight; 
the spirals are grained by the passage of fine radial strie. Aperture :— 
A substantial varix stretches a free limb over the mouth; beneath it are 
six small tubercles; on the inner lip are ten entering plaits. Length 
5 mm., breadth 2 mm. 
Hab. Queensland :—5 to 10 fathoms, Hope Island (type, self). 
HUCITHARA MORARIA sp. nov. 
(Plate xlvi., fig. 64.) 
Shell small and subcylindrica]. Colour blackish brown, the apex and 
bands on the lip buff. Whorls seven, the upper short, well rounded, the 
last flatter, half the length of the shell. Sculpture:—Riblets are set at 
the rate of about eighteen to a whorl, more than the breadth of each 
apart, incurved at the suture, those aboye more prominent, on the last 
whorl decreasing in height, and gradually vanishing on the base; both 
riblets and inter-costal spaces are closely encircled by alternately larger 
and smaller threads, which are in turn grained by finer radial lines. 
Aperture narrow; well developed external varix, slightly incised by 
posterior notch; within the outer lip are a few small denticules, and on 
the inner lip fourteen short entering ridges. Length 9 mm., breadth 
3°59 mm. 
This species is a relation of H. cylindrica, from which it is distin- 
guished by dentition, colour, coarser sculpture, and blunter extremities. 
Hab. Queensland:—Annam River bar (type, self); 13 fathoms, 
Princess Charlotte Bay (Brazier). 
