213 



initial half of a Gadulus, similar to C. acuminatus, and tho 

 presence of both portions of C. angustior, Verco, in its own 

 locality heightens the probability ; and these more or less 

 fully formed individuals of C . spretus prove it. 



Cadulus (Polyschides) gibbosus, n. sp. PI. xxvi., fig. 6. 



Shell smooth, polished, narrow, somewhat fusiform, 

 slightly compressed dorso-ventrally, smaller behind ; greatest 

 diameter at the junction of the middle and anterior third; 

 dorsal surface obtusely angled at this point ; ventral surface 

 almost uniformly convex. Anterior end sloping forward 

 from the convex to the concave surface, mouth rather wider 

 than high. Posterior end with a slit on each side, one on the 

 convex surface and a wider curve on the concave. Colour 

 milky-white, least opaque in the middle third, most in the 

 anterior and along the concave side of the shell. It is some- 

 what obliquely striatedly painted. At 1 mm. from the pos- 

 terior end is a transverse colourless line. 



Dimensions. — Length, 9'7 mm. ; greatest diameter, 1'8 

 mm. ; diameter of the posterior end, '45 mm. ; of the anterior 

 end, 11 mm. 



Locality. — In 300 fathoms off Cape Jaffa, type with 3 

 others full grown, and 18 immature or fragments; in 130 

 fathoms off Cape Jaffa, 4 moderately good and 2 immature. 



Type in Dr. Vereo's collection. 



Turbo jourdani, Kiener. PI. xxvii., figs. 1 to 6a. 



In the Transactions of this Society, vol. xxxii., 1908, pp. 

 338 to 340, I gave some notes on this species, with a descrip- 

 tion of its operculum. I was unaware at the time that Dr. 

 Cox had described the operculum in Proc. Linn. Soc, 

 N.S.W., ser. ii., vol. iv., 1889, p. 189, from a specimen 

 taken in Geographe Bay, Western Australia. 



His shell was 14 cm. long by 12'5 cm. wide, and its oper- 

 culum was 95 mm. by 80 mm. Since my Note I have received 

 a beautiful example from Mr. Elliot, of The Register office, 

 which was found with the fish in it on Wedge Island at 

 the entrance to Spencer Gulf. This measures 21 cm. in 

 length by 18'5 cm., in the greatest diameter of its body-whorl, 

 so that it is just half as large again as Dr. Cox's specimen. 

 But at Esperance Bay, in Western Australia, one was given 

 to me measuring 22'3 cm. in length by 21 cm. in the greatest 

 and 14 cm. in the smallest diameter of its bordy- whorl. It 

 is a splendid great shell. Dr. Cox's specimen extends its 

 habitat to Geographe Bay; but I took it at Rottnest Island, 

 opposite Fremantle, and the lighthouse-keeper there (Mr. 



