PERCID.^i. 



393 



One species, from the fresh waters of the United States 

 {G. salmonoides), attains to a length of more than two feet. 

 It is known by the name of " Growler," and eaten. 



Arripis. — Body oblong, covered with scales of moderate size. 

 All the teeth villiform, without canines ; teeth on the vomer and 

 palatine bones. One dorsal fin, with nine slender spines ; anal 

 with three. Preeoperculum denticulated. 



Fig. 165. — Arripis salar, South Australia. 



Three species are known, from the coasts of Sonthern 

 Australia and New Zealand. They are named by the colon- 

 ists Salmon or Trout, from their elegant form and lively 

 habits, and from the sport they afford to the angler. Their 

 usual size is from 1 to 3 llxs., but specimens of double that 

 weight are taken. The smaller specimens are the more deli- 

 cate and better flavoured. When not fresh, they are liable 

 to assume poisonous properties ; and cases of poisoning are 

 not unfrequently caused by them. 



HuRO. — Body oblong, compressed, covered with scales of 

 moderate size. All the teeth villiform ; bones of the head 

 without serrature. Mouth rather oblique, with the lower jaw 

 projecting. Two dorsal fins, the first Avith six spines. 



The " Black Bass " of Lake Huron (Htiro nigricans). 



Ambassis. — Body short, strongly compressed, covered with 

 large thin deciduous scales. Mouth oblique, with the lower jaw 

 longest ; teeth villiform, without conspicuously larger canines ; 

 teeth on the vomer and palatine bones. Two dorsal fins, the 

 first with seven, the anal with three spines ; a horizontal spine 



