BY W. MACLEAY, F.L.S. 209 



Plotoms megastomus, Kich., Voy. Erebus and Terror, p. 31, pi. 21, 



figs 1 and 3. 



Chceroplotosus decemfilis, Kner., Novara, Fisch. p. 300, t. 13, fig. 1, 



B. 11. First D. 1/4. Second D.+C.+A. 234. P. 1/9. V. 10. 



Head very broad and depressed, its length being one-fifth of 

 the total (without caudal). Ten barbels, (there being two pair 

 of maxillaries) not very long ; those of the nostril and maxillary 

 extending somewhat behind the eye. Lower lip broad, pendent, 

 with lobes, the outer of which is situated below the maxillary 

 barbels and has the appearance of a short barbel. The inter- 

 maxillary teeth are small, conical, and form two small patches ; 

 those of the lower jaw form a broad band, tapering on the side, 

 the outer series of which is formed by conical teeth, the remainder 

 being molar-like. Vomerine teeth in a large triangular patch. 

 Eye small, covered by the skin. Uniform blackish-brown above. 



Port Jackson. 



812. Cnidoglanis lepturus, Ghmth. 



Gunth., Cat. Fishes V., p. 28. 

 First D. 1/5. Second D.+C.+A. 212. P. 1/9. V. 11. 



Head depressed, its width being three-fourths of its length, 

 which is one-seventh of the total ; tail long, much produced and 

 pointed behind. The nasal and maxillary barbels extend to the 

 end of the head ; lower lip not pendent or fringed. Inter- 

 maxillary teeth conical, in two small patches ; those of the 

 mandible in two triangular bands, molar-like, with an outer 

 series of conical ones. Eye small. The first dorsal fin is lower 

 than the body, and placed at a very short distance from the 

 occiput ; its spine is feebly serrated, one-third or not quite one- 

 third as long as the head ; pectoral spine as long and strong as 

 that of the dorsal fin. Uniform black. 



Port Jackson. Length fourteen inches. 





