SCORPAENIFORMES 



451 



spiny. The myodome is lost ; the post-temporal fixed, the pelvic fins 

 close together with one spine and two soft rays, and the anal spineless. 

 Bony plates cover the body. 



Agonus, Bloch, the ' Pogge,' widely distributed. 



FIG. 469. 

 Chwismodactylus midtibnrbis, Rich. (After Giinther.) 



.8 



23 



22 



20 19 



15 14 l3 



FIG. 470. 



Trigla gurnardus, L. Left-side view of skeleton of head and pectoral girdle. 1, nasal ; 2, 

 nasal capsule ; 3, prefrontal ; 4, preopercular ; 5, opercular ; 0, pterotic ; 7, subopercnlar ; 8, 

 supraclavicle ; 9, cleithrum ; 10, scapula; 11, lepidotrichia ; 12, three free specialised lepido- 

 trichia ; 13, radial ; 14, coracoid ; 15, subopercular ; 16, cleithrum ; 17, interopercular ; 18, 

 .angular ; 19, articular ; 20, maxilla ; 21, enlarged suborbital ; 22, dentary ; 23, premaxilla. 



C. Family DACTYLOPTEKIDAE. Resembling the preceding family in 

 the complete armature of the head, the subdivision of the dorsal fin, and 

 the fusion of the post-temporal ; but the myodome is lost. The head is 

 short ; the cephalic cuirass extends far back. The dorsal fin is preceded 



