GENERA AND SPECIES. IOQ 



(lepidopus scale foot). The dorsal begins on the nape and extends 

 almost to the tail. The lateral line is long, straight, and well 

 marked. There are about 20 teeth in each jaw, with 2 or 3 barbed 

 canines ; the lower jaw is the longer, and the mouth extends to the 

 eye. This rare fish is silvery in colour, with yellowish grey fins ; it 

 attains a length of 6 feet. 



Lepidorhombus. Plate xx. PLEURONECTIDM. 



155. megastoma, MEGRIM. Eyes left; eyes large; mouth large; jaws 

 alike. 



In the dorsal fin there are from 85 to 91 rays, in the anal 61 to 

 75, in the caudal 15, in the pectorals 13, in the ventrals 6. The 

 dorsal is highest in its hinder half. The lateral line makes a semi- 

 circular curve over the pectorals; it has from 104 to no scales. 

 The scales are rough, and easily detached. The body is oval and 

 thin ; the jaws have two rows of small teeth ; the mouth extends to 

 the back of the eyes ; and the eyes are yellow, and unusually large for 

 those of a flat fish. In colour thie fish is brownish yellow, spotted 

 with dark brown, many of the spots being arranged in rings. In 

 length it is about 18 inches. It lives in comparatively deep water. 

 It is said to come ashore in the Orkneys with its tail in the air 

 scudding before the wind, whence its name of Sail Fluke. It is also 

 known as the Whiff and as the Merry Sole. 



Leuciscus. Plate xxiii. CYPRINIDJE. 

 Lateral line incomplete 



178. phoxinus, MINNOW. Incomplete lateral line with from 80 to 90 

 scales. 



Lateral line complete 



174. rutilus, ROACH. Bluish or greenish, lighter on sides and 



below ; base of dorsal | of height ; 4 rows of scales 

 between lateral line and ventrals. 



175. cephalus, CHUB. Bluish or greenish, lighter on sides and below ; 



base of dorsal of height ; 3 rows of scales between 

 lateral line and ventrals ; cheeks with red and gold 

 reflections. 



176 vulgar is, DACE. Bluish above, silvery on sides and below ; base 

 of dorsal of height ; 5 rows of scales between 

 lateral line and ventrals. 



177. erythrophthalmus, RUDD. Silvery glossed with red ; eye red ; 

 4 rows of scales between lateral line and ventrals. 



The ubiquitous Minnow has 9 or 10 rays in its dorsal fin, 10 or 

 ii in its anal, 19 in its caudal, 15 in its pectorals, and 9 or 10 in its 

 ventrals. The dorsal begins behind the ventrals, and ends in a line 

 with the commencement of the anal ; the pectorals, ventrals, and 

 caudal are at equal intervals. The upper jaw is the longer ; the 

 mouth reaches to the first third of the eye. In colour this fish is 

 silvery, occasionally dotted or striped with black. In size it is generally 



