32 PISH AND PISH-LIKE ANIMALS OP N.S.W., 



72. Euristhmus Ogilby, P.L.S. N.S.W. xxiv, 1899, p. 154 (elongatus) . 



72a. E. lepturus. Long-tailed Cat Fish. Cnidoglanis Upturns Gthr., 

 Brit. Mus. Cat. Fish, v, 1864, p. 28. (PI. vii). 



73. Tandanus Mitchell, Exp. Int. E. Austr. i, 1838, p. 95 (tandanus). 



73a. T. tandanus. Fresh-water Cat Fish. Id. Mitchell, Op. cit., p. 95, pi. 

 5, 2. Id. Roughley, Fish. Austr., 1916, p. 19, pi. 2. (PI. vii.). 



Reaches a length of over two feet, and occurs in all western waters and some 

 coastal streams. It is a valuable food-fish, and it constructs a nest of pebbles to 

 protect its eggs. 



(T. obscurus Gthr., has been included in a M.S. Wales list on insufficient evi- 

 dence— Ogilby, Cat. Fish N.S. Wales, 1886, p. 50.) 



XLIV. Family Ariidae. 



A. Teeth of palate in three groups on each side, the hinder group extending back- 

 ward. Netuma (74). 



AA. Teeth of palate in two transverse groups on each side; no third group extend- 

 ing backward. Hexanematichthys (75). 



74. Netuma Blkr. Act. Soc. Sci. Indo-Neerl. iv, 1858, p. 62 (nasuta). 



74a. N. thalassina. Giant Salmon Catfish. Bagrus thalassinus Ruppell, 

 N.W. Fische, 1828, p. 75, pi. 20, 2. A 7 , thalassina and N. nasuta Blkr., 

 Atlas Ichth. ii, 1863, p. 28, pi. 61. (PI. vii.). 



A large tropical fish occurring in the estuaries of the northern rivers. It car- 

 ries its eggs in its mouth until they hatch. 



75. Hexanematichthys Blkr., Act. Soc. Sci. Indo-Neerl. iv, 1858, p. 61 (sun- 



daicus). 

 75a. H. australis Smaller Salmon Catfish. Arius austraUs Gthr., Proc. 



Zool. Soc. 1867, p. 103, fig.— head. 

 Grows to about 18 inches long, and occurs in the estuaries of the northern 

 rivers . 



Pigmy Eels. Order SYMBRANCHII. 

 Form Eel-like. Only one gill-opening, which is on the ventral surface. 



XLV. Family Cheilobranchidae. 



76. Cheilobranchus Rich., Ichth. Erebus & Terror, 1845, p. 50 (dorsalis). 

 76a. C. rupus. Red-banded Pigmy Eel or Shore Eel. Chilob ranch us rufus 

 Macleay, P.L.S. N.S.W. vi, 1881, p. 266; Id. Waite, Rec. Austr. Mus. vi, 

 1906, p. 195, pi. 36, 1. (PI. viii.) . 

 A small fish, common just below low-tide mark. Length 4 inches. 



76b. G. parvulus. Cheilobranchus parvulus McCulloch, Rec. Austr. Mus. vii, 



1909, p. 316, fig. 18. 

 Plentiful in rock-pools on the coast, and reaching only 2 inches in length. 



