CHAP, xx.] FISHES. 455 



FAMILY 82. NOTOPTERID^E. (1 Genus, 5 Species.) 



" Fresh-water fishes, without barbels, head and body scaly, 

 long tapering tail, and short posterior dorsal fin." 



DISTRIBUTION. Eivers of India, Siam, the Sunda Islands, and 

 West Africa. 



FAMILY 83. HALOSAURIDJE. (1 Genus, 1 Species.) 



" Marine fishes, with cycloid scales, a short median dorsal fin, 

 and no barbels." 



DISTRIBUTION. Deep waters of the Atlantic, Madeira. 



FAMILY 84. GYMNOTID^E. (5 Genera, 20 Species.) 



" Fresh- water fishes, with elongate bodies, pointed tail, and no 

 dorsal fin." 



DISTRIBUTION. Tropical America from Trinidad to the Eiver 

 Parana. 1 



The genera are distributed as follows : 



Sternarchus (8 sp.), Guiana and Brazil; Rhamphichthys 

 6 sp.), Guiana and Brazil ; Sternophygus (4 sp.), Tropical 

 America ; Campus (1 sp.), Trinidad to Brazil ; Gymnotus, (1 sp. 

 the Electric eel), Tropical South America. 



FAMILY 85. SYMBRANCHID^E. (4 Genera, 6 Species.) 



" Marine and fresh- water fishes, having elongate bodies without 

 fins, and very minute scales or none." 



DISTRIBUTION. Fresh waters and coasts of Western Australia 

 and Tasmania. 2 



The genera are : 



Amphipnous (1 sp.), Bengal; Monopterus (1 sp.), Siam to 

 Northern China and Sunda Islands ; Symbranchus (3 sp.), Tropical 

 VOL. II. 30 



>,u Cli . . 



