GENERA AND SPECIES. 113 



Luvarus. Plate v. CORYPHMNID&. 



35. imperialis. Grey with a scarlet stripe ; tail forked and keeled. 



This Mediterranean fish is of rare occurrence round these islands. 

 In full-grown specimens the dorsal has a spine and from n to 13 

 rays, the anal a spine and 14 rays, the caudal 16, the pectorals 14 to 

 18, and the ventrals a spine and 4. The rays of the dorsal and 

 anal are wide apart ; both fins are in the hinder half of the body, 

 which is pyriform in shape, with a curious head, small mouth, and 

 large eyes. In colour it is grey above, silvery below, with a red 

 stripe along the side, and red fins. In length it attains 5 feet. 



Maurolicus. Plate xxiv. STERNOPTYCHIDsE. 



1 88. pennantii, PEARLSIDES. Anal fin in three portions, of different 



heights. 



The dorsal fin has 10 rays; the anal has 10 longish rays, 

 then 12 short rays, then from 4 to 13 rays rather higher than 

 the middle group. The caudal has 19 rays, the pectorals 

 16, the ventrals 7. Sometimes there is an adipose dorsal. 

 In the lateral line are 28 scales ; the scales are cycloid, and are 

 higher than they are wide. The head is unusually square, and the 

 body tapers gradually backwards from the cheeks. The back is 

 blackish, the sides silvery; there are many luminous spots, and 

 under the spots are black marks. The average length seems to be 

 3 inches. This is a deep-sea form, and the few British examples 

 have been found after storms. 



Merluccius. Plate xvii. GADID&. 



133- vulgaris, HAKE. No barbule ; anal highest behind; eye round; 



teeth many and large. 



The first dorsal has 10 rays, the second from 36 to 40, the anal 

 36 to 38, the caudal 22, the pectorals 14, the ventrals 7. The first 

 dorsal is short and triangular, the second is long, lowest in the 

 middle and highest at the end ; the anal, which is the same length 

 as the second dorsal, is also highest near the tail ; the caudal is 

 square, the pectorals and ventrals are pointed. The lateral line is 

 straight, and is black with a white edging. The mouth is large, and 

 its inner surface and that of the gill cavities are black. The teeth 

 are long and sharp, and in two rows, the inner being the larger. In 

 colour the Hake is greyish brown above and white below ; in shape 

 it is long and slender; in length it reaches 48 inches. It is a 

 voracious fish of wide distribution, active generally at night, and 

 following the shoals of mackerel, herring, and so forth round the 

 coasts. 



Molva. Plate xvii. GADIDM. 



135. vulgaris, LING. Long barbule ; anal level throughout ; eye 

 oval. 



The Ling that is, the "long " fish has two dorsal fins, the first 

 with 13 to 16 rays, the second with from 63 to 70 ; in the anal there 

 are from 57 to 66 rays, in the caudal from 35 to 38, in the pectorals 19, 



