428 GEOGRAPHICAL ZOOLOGY. [part iv. 



They are divided by Dr. Giinther into four groups. The 

 Heterolepidina (comprising 4 genera and 12 species) are con- 

 fined to the North Pacific. The Scorpseuina (23 genera 113 

 species) have an almost universal distribution, but the genera 

 are each restricted to one or other of the great oceans. Sehastes 

 has occurred on the English coast. The Cottina (28 genera 110 

 species) have also a universal distribution ; the numerous species 

 of Cottiis are found either in the seas or fresh waters of Europe 

 and North America ; four species are British, as well as seven 

 species of the wide-spread genus Trigla. PtyonoUis (1 sp.) is 

 confined to Lake Ontario. The Cataphracti (5 genera, 23 species) 

 have also a wide range ; one genus, Ayonus, is found in the 

 British seas, and also in Kamschatka and on the coast of Chili. 

 Peristethus is also British, 



Family 11.— TEACHINID^. (24 Genera, 90 Species.) 



" Carnivorous marine fishes, with elongate bodies, living at the 

 bottom, near the shore." 



Distribution. — Almost or quite universal. 



Trachinus is a British genus. A species of Aphritis inhabits 

 the fresh waters of Tasmania, while its two allies are found on 

 the coasts of Patagonia. 



Family 12. SCIiENID^. (13 Genera, 102 Species.) 



" Marine or fresh -water fishes, with compressed and rather 

 elongate bodies, covered with toothed scales." 



Distribution. — Temperate and tropical regions, but absent 

 I'rom Australia. 



Larimus is found in the Atlantic, and in African and American 

 rivers. Gorvina, Scimna, and Otilothus are also marine and fresh- 

 water, both in the Atlantic and Pacific. The otlier genera are of 

 small extent and more restricted range. Umbrina and Scicma 

 have occurred in British seas. 



