84 ] 
RECORDS OF W.A. MUSEUM. 
the Hawkesbury River, while Mr. Ogilby informs me that accor- 
ding to his notes, the lateral ridge is always continuous with the 
lower caudal edge. I therefore regard the original description as 
incorrect in this detail. 
CYPSELURUS KATOPTRON, Bleeker. 
Exocoelus katoptron, Bleeker — Ned. Tydschr. Dierk., III., p. 115 ; Id,., Gunther, 
Brit. Mus. Cat. Fish, VI., 1866, p. 289; Id. Bleeker, Atl Ichth., VI., 
1871, p. 72, pi. CCXLVII., fig. 3. 
Cypsilurus katoptron, Jordan and Seale— Bull. U.S. Bur. Fish, XXV., 1906, p. 
211, fig. 16. 
A large specimen from Fremantle differs from Jordan and 
Seale’s excellent figure only in having a slightly larger eye, and 
thirteen instead of fourteen dorsal rays, but in both these details it 
is in agreement with Bleeker’s description. 
It differs from Gunther’s description of Exoccetus robustus 1 in 
having the interorbital space concave instead of flat, and in the 
position of the ventral fin which is inserted farther back. Jordan 
and Seale consider C. robustus and C. katoptron identical, notwith- 
standing that Gunther had Bleeker’s type before him for comparison. 
PARAPLESIOPS MELEAGRIS, Peters. 
Plate IX. 
Plesiops meleagris, Peters— Monatsb. Akad. Wiss. Berlin, 1869 (1870), p. 708. 
Ruppelia prolongata, Castelnau — Res.; Fish. Austr. (Viet. Rec. Philad. Exhib.), 
1875, p. 29 (not R. prolongata, Cast., 1873). 
Paraplesiops meleagris, Boulenger — Brit. Mus. Cat. Fish., 1895, p. 339. 
A specimen from near Fremantle is in the Western Australian 
Museum, and another from the same locality was presented to the 
Australian Museum by Mr. A. Abjornssen. It is figured on plate I. 
(Reg. No. I. 1 1232). 
Though the species has not been recognised from Western 
Australia under this name, there can be no doubt that the second 
specimen identified by Castelnau as Ruppelia prolongata, was really 
P. meleagris. 
1 Gunther, loc. cit. 
