460 PLEURONECTID^ 



the fin and two-fifths of the length of the head. Caudal fin slightly 

 rounded, its length being contained five times and a half in the total. 

 The length of the pectoral is a little more than one-half of that of the 

 head. Brown (in spirits), marbled with darker and spotted with white. 



Australian Seas. 



a. Eight inches long : skin. Australia. 



b. Eight inches long : stufled. King George's Sound. 



c. d, e, f-h, i-m. Adult and half-grown. Auckland Islands. Pre- 



sented by Sir J. Richardson. 

 n-q. Half-grown. Norfolk Bay, Tasmania. Presented by Sir J. 

 Richardson. 



3. Rhombosolea leporina. 

 B. 6-7. D. 65. A. 43. 



The height of the body is contained twice and a third in the total 

 length (without caudal), the length of the head four times. Eyes 

 separated by a naked space, the width of which is less than the ver- 

 tical diameter of the eye. The lower eye is in advance of the upper. 

 Snout longer than the eye, the diameter of which is one-seventh or 

 one-eighth of the length of the head. The maxillary of the right 

 side extends to below the anterior margin of the eye ; teeth in rather 

 broad bands. The upper jaw slightly overlaps the lower, which is 

 received in a notch of the upper lip. The cutaneous fold above the 

 maxillary well developed, bearing the first dorsal rays. The gill- 

 opening does not extend upwards beyond the base of the pectoral. 

 The dorsal fin terminates at a distance from the caudal which is 

 rather more than one-half of the depth of the free portion of the tail ; 

 anterior dorsal rays produced beyond the connecting membrane, with 

 their tips split into two fine filaments, but considerably' shorter than 

 the rays behind the middle of the fin, the length of which is two-fifths 

 of that of the head. Caudal fin rounded, one-sixth of the total 

 length. Ventral and anal fins as in Rh. monopus. The length of the 

 pectoral is not much more than one-haK of that of the head. Uni- 

 form brownish (in spirits). 



Australia. 



a, b. Nine inches long. Presented by Sir J. Richardson. 



22. PELTORHAMPHUS. 



Mouth small, twisted towards the left side, toothless on the other ; 

 teeth minute, in two distant series on the left branches of the jaws ; 

 vomerine and palatine teeth none. Eyes on the right side, of mode- 

 rate size; snout dilated, flat, sharp, bent downwards, hook-like. 

 Dorsal and anal rays branched, naked. The dorsal fiji commences 

 on the foremost part of the snout. Pectorals well developed. The 

 right ventral is continuous with the anal, the left very small. Scales 

 small, ctenoid ; lateral line straight. (iiU-openings narrow, the gill- 

 membranes being broadly united below the throat ; gill-rakers short. 



New Zealand. 



