12 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY. 
Nore on THE Orercuta or 7vre0 PpuLcuER, REEvE, AND 7. TICAONICUS, 
Reeve. (Lead 10th Jan. 1902.)—Reeve’s description of this species 
(Conch. Icon., Turbo, sp. 9) does not include the operculum, which was 
probably unknown to that author. In my monograph of the genus Turbo 
(Thes. Conch., vol. v, p. 198, pl. iv, fig. 38) I have described and figured 
the operculum with the shell ; but since, unfortunately, sometimes 
through lamentable carelessness, opercula get placed in shells to which 
they do not belong, my identification has been called in question, and 
until a few weeks ago I have been unable to confirm it. Pilsbry (Man. 
Conch., ser. I, vol. x, p. 203) considered my statement that the operculum 
of 7’. pulcher, Rve., is like that of 7. Sarmaticus, Linn., to be highly 
improbable, and thinks it will prove similar to that of 7’. Ticaonicus, Rve., 
and other allied species of Senectus. He further expresses a doubt (p. 202) 
whether the species be not identical with 7. Ticaonicus, Rve. 
I am now able, through the kindness of Mr. Bernard H. Woodward, 
Director of the Western Australian Museum, who has sent me a specimen 
with the animal intact, to prove that my description was substantially 
correct. The operculum of 7. pulcher, Rve., 1s very like that of 
T. Sarmaticus, Linn, ; it is rather more convex, and the peculiar club- 
shaped processes are more regular, and more nearly equal in size. The 
specimen is from Safety Bay, Fremantle. 
Turbo Ticaonicus, Rve., of which I have specimens from the Philippines, 
differs considerably in general contour as well as in detail from 7’. pulcher, 
Rve., and its operculum is entirely different. The latter is very convex, 
dark green with a whitish margin, granulous on the right side, granules 
becoming less distinct in the centre, and obsolete, leaving a smooth 
polished surface, on the left. 
G. B. SowERBY. 
