30 SEA FISHERIES 



Channel, North Atlantic, South Atlantic. 4. Sturgeon, white tunny, 

 atherine (A. presbyter), brill. 



South Atlantic, Mediterranean. 1 1. Piper, Scorpcena scrota, ombrina, 

 tunny, bream (P. centrodontus and vulgaris, Sargus vulgaris), Creni- 

 labrus massa, common girella, thick-lipped mullet, Centriscus scolopax 

 (bellows fish). 



North Atlantic, South Atlantic, Mediterranean. 4. Lamprey, 

 centrophorus, hake, burbot. 



Channel, North Atlantic, South Atlantic, Mediterranean. 29. Larger 

 spotted dogfish, lesser spotted dogfish, shark (No. 5), monk-fish, thorn- 

 back-ray, common skate, white ray, sting-ray, weever, blenny, red 

 mullet, surmullet, malarmat, Block's gurnard, Cottus scorpius (miller's- 

 thumb), bass (Nos. 31, 32), bream, meagre, horse-mackerel, John 

 Dory, gilt-head (Box vulgaris, P. erythrinus, C. griseus), grey mullet 

 (Af. cephalus), grey mullet (Af. capito), plaice, lemon sole, pilchard. 



North Sea, Channel, South Atlantic, Mediterranean. 15. Homelyn- 

 ray, fishing-frog, red gurnard, grey gurnard, streaked gurnard, 

 sapphirine gurnard, mackerel, common sole, turbot, anchovy, shad, 

 thwaite shad, flying-fish, conger, eel. 



The appended diagram (Fig. i) is a graphic representation of the 

 above facts. The lines running from one sea to another denote the 

 number of species common to those seas ; their thickness being in 

 proportion to the number which they express. As we see, the distri- 

 bution of marketable species along the coasts of France is almost 

 homogeneous, for in spite of its twenty-seven peculiar species the 

 Mediterranean presents close affinities with the southern and even 

 with the northern portion of the North Atlantic (which portions 

 I have for convenience spoken of as the North and South Atlantic), 

 and these affinities are not wholly absent in the case of the colder 

 waters of the Channel and the North Sea. 



