262 DESCRIPTIONS OP AUSTRALIAN PISHES, 



Genus Hippocampus Rafinesque. 

 Hippocampus breviceps Peters. 

 Hippocampus breviceps(Petevs) Duncker, Faun. Slid west- Austr., 

 ii., 1909, p. 247, references. Id., McCoy, Prodr. Zool. Vict., dec. 

 vii., 1882, PI. Ixv., fig.2. 



Hippocampus tuberculatns Castelnau, Res. Fish. Austr. (Vict. 

 Offic. Rec. Philad. Exhib.), 1875, p.48. 



Two specimens from Cottesloe Beach, near Perth, agree very 

 well with Castelnau's brief description of H. tuherculatus from the 

 Swan River. They are also very similar to Victorian examples 

 of H. breviceps, differing only in the degree of development of 

 the tubercles, which are usually more rounded in the Western 

 Australian specimens. I therefore regard the two species as 

 identical. Duncker has already recorded H. breviceps from Fre- 

 mantle. 



Family SERRANID^. 



Genus Therapon Cuvier. 



Therapon bidyana Mitchell, young. 



(Plate xxxvi,, fig.l.) 



Therapon ellipticus Richardson, Voy. "Erebus" and "Terror," 



Fishes, 1848, p.118, Pl.lii., figs.4-8. Id., Stead, Ed. Fish. N. S. 



Wales, p.73, 1908, PI. xlii. 



Therapon bidyana McCulloch, Rec. Austr. Mus., ix., 1913, 

 p.359. 



D. xii./12; A. iii./8; P. 17; V. i./5; C. 17. L. lat. 59; scales 77. 

 Depth 3*6 in the length from the snout to the hypural, and a 

 little less than the length of the head, which is 3*3 in the same. 

 Eye equal to the snout, and but little less than the interorbital 

 width, 3-7 in the head. Fifth dorsal spine and second anal spine 

 of equal length, 1*8 in the head; first dorsal ray 2*1 in the same. 

 Caudal peduncle 3 in the head. 



Body slender, deepest at the origin of the dorsal fin. Snout 

 obtuse, rising rapidly to the level of the upper margin of the eye; 

 the profile thence rises gradually to the first dorsal spine. Eye 

 large, its greater portion in the upper half of the head, and in 

 advance of the middle of its length. Mouth small, the maxillary 



