BY W. MACLEAY, F.L.S. 301 



radiating granulated lines ; a cluster of prominent tubercles on 

 the hinder part of the superciliary edge. 



Houtman's Abrolhos. 



973. Solexognathus spixosissimus, Gunth. 



Gunth., Cat. Fishes VIII., p. 195. 



D. 35. Osseous rings 27 + 55. 



Dorsal surface slightly convex. All parts covered with small 

 but very distinct spines ; the radiating lines of the operculum 

 spiny. Orbital edge denticulated, but without prominent 

 tubercles above. 



Tasmania. 



Genus Piiyllopteryx, Kaup. 



Body compressed or as broad as deep. Shields smooth, but 

 some or all of them are provided with prominent spines or 

 processes on the edges of the body ; some of the processes with 

 cutaneous filaments. A pair of spines on the upper side of the 

 snout and above the orbit. Tail about as long as the body, 

 prehensile. Pectoral fins. The eggs are carried embedded in 

 soft membrane on the lower side of the tail. 



Australia. 



974. Phyllopteryx foliatus, Shaw. 



Gunth., Proc. Zool. Soc, 1865, pi. 14, and Cat. Pish. VIII., p. 196. 



D. 30. Osseous rings 18 + 35. 



Trunk much elevated, especially in females, in which its depth 

 sometimes equals the length of the snout. A pair of small spines 

 on the upper part of the snout, much nearer to the eye than to 

 its extremity ; a pair of superciliary spines. A long occipital and 

 nuchal process, which as well as the other processes on the bod}', 

 bear cutaneous appendages. Pairs of long divergent processes 

 along the back of the twelfth body-ring, and on the first, tenth, 



