BY W. MACLEAY, F.L.S. 131 



cutaneous fold above the maxillary is well developed, bearing the 

 first dorsal rays. The gill-opening does not extend upwards 

 beyond the base of the pectorals. The dorsal fin terminates at a 

 distance from the caudal which is rather more than half the depth 

 of the free portion of the tail ; the 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 R. monopus. The length of the pectoral is not 

 much more than one-half of that of the head. Uniform-brownish 

 (in spirits). 



Australia (Eichards.) Length nine inches. 



788. Ehombosolea flesoides, Gunth. 

 Gunth., Ann. and Mag. Nat. Hist., 1863, Vol. IL, p. 117. 



B. 6. D. 62. A. 41. 



Similar to R. leporina, but with the body more elevated. The 

 height of the body is rather less than one-half the length (with- 

 out caudal), the length of the head two-sevenths. Eyes separated 

 by a narrow, low, naked ridge, the lower being in advance of the 

 upper. A cutaneous flap is suspended from the maxillary, over- 

 hanging the mouth. The gill-opening does not extend upwards 

 beyond the base of the pectoral. The dorsal fin terminates at a 

 distance from the caudal, equal to one-fourth of the depth of the 

 free portion of the tail ; the first dorsal ray is inserted immediately 

 behind the maxillary appendage, and the four or five anterior 

 rays are produced beyond the connecting membrane, but are 

 considerably shorter than those behind the middle of the fin, 

 which are nearly half as long as the head. Caudal subtruncated, 

 its length being rather more than one-sixth of the total. The 

 pectoral is somewhat more than half the length of the head. 



