112 GENERA AND SPECIES. 



under the throat ; the ventrals surround the disk. The head is 

 broad and round; the mouth extends to the front edge of the 

 eye ; the upper jaw is the longer. In colour this species is brown 

 or pale grey, with many narrow stripes; in length it is about 6 

 inches. 



Montagu's Sucker has from 26 to 30 rays in its dorsal fin, 24 in 

 its anal, 14 in its caudal, 30 in its pectorals, and 6 in its ventrals. 

 The pectorals are notched, and extend under the throat as in the 

 foregoing species, but there are only 5 long rays on the lower side 

 instead of 6. In colour it is brownish, covered with dark spots, and 

 its length is 3 inches. Like the Sea Snail, it is found just below 

 low-water mark along the coast and in estuaries, and seems to use 

 its sucker to hold on by as the tide runs out. 



Lophius Plate vii. LOPHIID& 



47. piscatorius, ANGLER. Anterior dorsal spines modified into tentacles. 



The dorsal fin of the Angler is in four divisions, the first con- 

 sisting of 2 long isolated spines, the second of a long spine at some 

 distance from them, the third of 3 spines united by a membrane at 

 their base, and the fourth of an ordinary sort of fin containing n 

 rays ; in the anal are from 9 to n rays, in the caudal 8, in the pec- 

 torals 13, in the ventrals a spine and 5 rays. The pectorals are 

 large and not unlike feet ; by their means the Angler can not only 

 walk but cling to anything so as to be carried from place to place, 

 and with them it digs a hole in sand, in which it hides, dangling the 

 filaments attached to its anterior spines over its mouth as a bait. 

 Its mouth is a quarter as wide as the fish is long, and there are 

 two rows of teeth in the jaws, the inner row being the larger and 

 being movable backwards. The eye is well developed, as is also 

 the organ of hearing. In colour the Angler is dirty brown, with 

 dark reticulations ; in length it measures from 4 to 7 feet ; and it 

 feeds on fishes and crustaceans. 



Lota. Plate xviii. GADIDM. 



136. vulgaris, BURBOT. Two dorsals, one anal, and a long barbule. 



The Burbot is a fresh-water member of the Cod family. It has 

 2 dorsals, the first short with 12 to 14 rays, the second long with 

 from 67 to 76 rays ; the anal has from 65 to 71 rays, the caudal 30, 

 the pectorals 19 to 21, and the ventrals 7. The vertical fins are 

 nearly continuous ; the caudal is rounded, the lower half beginning 

 nearer the head than the lower half. The lateral line is almost 

 straight ; the scales are small. The head is broad, the mouth wide, 

 the jaws equal, the mouth extending to the middle of the eye. In 

 colour the Burbot is brownish, mottled or banded with darker brown ; 

 in length it reaches 30 inches. It is found in clear streams and 

 lakes, mainly in the Trent and rivers of the north-east coast, and is 

 nocturnal in habit, hiding under stones or in the mud or in holes 

 in the banks. 



