204 DESCRIPTIVE CATALOGUE OF AUSTRALIAN PISHES, 



bands, the upper of which, commences at the snout, and runs 

 above the eye along the base of the dorsal fin ; the lower proceeds 

 from the maxillary barbel along the middle of the side of the 

 body. Vertical fins with dark margin. 



Moreton Bay, Endeavour Eiver, and Port Darwin. 



803. Plotosus unicolor, Casteln. 



Proc. Zool. Soc, "Victoria, Vol. II., p. 141. 



Eight barbels, about as long as half the space from the anterior 

 margin of the snout to the base of the first dorsal fin, those of 

 the nostrils extending considerably behind the eye ; length of 

 head over four times and two thirds in the total length, height 

 of body over six times in the same ; the diameter of the eye less 

 than half the length of the snout. Head rather pointed in front, 

 the dorsal spine straight and acute ; rays of first dorsal, four. 

 Ventrals rather long, of twelve rays ; pectorals of one long spine 

 and nine rays. Colour uniform dark brown, almost black 

 Length about seven inches. 



In waterholes in the interior of Western Australia. 



804. Plotosus elongatus, Casteln. 

 Proc. Linn. Soc. N.S. Wales, Vol. II., p. 237. 

 Brisbane Eiver (fresh-water) Norman Eiver. 



Genus Neoplotosus, Casteln. 



All the characters of Plotosus, but with the teeth all similar ; 

 soft, molar-like, they form a strip on the palate and a band on 

 the vomer. 



Australia. 



805. Neoplotosus Waterhousei, Casteln. 



Eesearches on the Eishes of Australia, p. 45. 



EirstD. 1/3. Second D.+C.+ A. 140. P. 1/10. V. 10. 



