GOBIAD.E. 183 



LopJiius (Linn.). Frog-fish. Head enormous, 

 depressed ; mouth deeply cleft ; jaw fringed with 

 fleshy filaments ; two dorsals, with several slender 

 free spines erect on the head ; gill-openings under 

 the pectorals. 



L. piscatorius. Fig. 283 ; ^ n. s. 



FAMILY IV. GOBIAD.E. 



Body thick, tapering to the tail, secreting a 

 slimy mucus ; a single lengthened dorsal or two ; 

 the spinous rays unusually slender and flexible ; 

 ventrals before the pectorals, composed of two or 

 three rays, or united into a sucking cup, or wanting. 



Callionymus (Linn.). Dragonet. Head large, 

 flat ; eyes on the summit ; gill-openings mere 

 holes in the neck ; two dorsals ; ventrals under the 

 throat, separate, very large ; all the fins greatly 

 developed ; body without scales. 



C. lyra. 



dracunculus. Fig. 284 ; J- n. s. 



Gobius (Linn.). Goby. Ventrals united into a 

 cup-shaped disk ; two dorsals ; body clothed with 

 large scales. 



G. niger. G. gracilis. 



Ruthensparri. Fig. 285 ; n. s. unipunctatus. 

 minutus. albus. 



