312 RECORDS OF THE AUSTRALIAN MUSEUM. 
Seulpture:—The radials vary from bold spaced ribs projecting at the 
shoulder to fine close riblets; the entire shell, except the nucleus, is over- 
run with fine, close, beaded or unbeaded threads. Aperture about half 
the length of the shell, with or without armature; outer lip slightly 
inflected ; sinus subsutural, deeply rounded; canal short and open. 
Guraleus is perhaps a development in temperate seas of a tropical 
citharoid stock in which less favourable growth conditions have effected 
structural economies, by reduction of the varix, the teeth within the 
aperture, granular microscopic sculpture, and a looser winding of the 
whorls. Muangilia glubra Harris and M. obsoleta Harris, from the miocene 
of Victoria, appears to be Guraleus. Mungilia sinclair’ Smith represents 
this genus in New Zealand. South Africa has at least one representative 
of Guraleus in Clathurella amplexa Gould.® 
A division of Guraleus may be separated from the rest by rounded 
shoulder, ovate contour, shorter spire, and smoother sculpture. It includes 
bellus, comptus, costatus, fallaciosus, flaccidus, insculptus, imornatus, kingensis, 
mitralis, nitidus, permutatus, and schoutenensis. This may be distinguished 
as a subgenus Marita, with Cythara compta Adams and Angas for type. 
GURALEUS BELLUS Adams and Angas. 
Cithara bella Adams and Angas, Proc. Zool. Soc., 1863 (1864), p. 419, 
pl. xxxvil., fig. 6. Jd. Angas, Proc. Zool. Soc., 1865, p. 160. 
Mangelia boukei Tryon, Man. Conch., vi., 1884, p. 270, pl. xxv., fig. 36. 
Mangilia adcocki Sowerby, Proc. Malac. Soce.. ii., 1896, p. 29, pl. iii., fig. 18. 
Td. Pritchard and Gatliff, Proc. Roy. Soc., xii., 1900, p.174. Id. Tate 
and May, Proc. Linn. Soc. N.S.W., xxvi., 1901, p. 370. Id. Verco, 
Trans. Roy. Soc. 8.A., xxxiii., 1909, p. 312. 
In the British Museum there is one shell marked as the type of 
G. bella. Sowerby changed the name of this species on the ground ‘that 
Mangilia bella was preoccupied by Hinds, but as a matter of fact Mangilia 
was used for this species neither by Hinds nor by Adams and Angas, so 
that the imnovation was not necessary. Tryon erred in ascribing this 
species to Ceylon. 
Hab. South Australia :—Rapid Bay (type, Angas); 14 to 22 fathoms, 
Investigator Strait (Verco). Victoria:—Port Phillip, Western Port, and 
Puebla (Gatliff). Tasmania :—North Coast (May). 
GURALEUS BRAZIERI Angus. 
(Plate lii., fig. 138.) 
Clathurella braziert Angas, Proc. Zool. Soc., 1871, pp. 18, 93, pl.i., fig. 21. 
Id. Tryon, Man. Conch., vi. 1884, p. 295, pl. xvii., fig. 98 (not 
% Bartsch—U.S. Nat. Museum, Bull. 91, 1915, p. 30, pl. ii., fig. 10. 
