BLENNIIFORMES 



457 



surface of the abdomen is occupied by a large complex sucker formed 



k 



pel 



FIG. 479. 



Oblique ventral view of f^padogaster gouanii, Lac. a, anus ; br, branchial opening ; n, 

 nostril ; p, left pectoral fin which joins the right to form the edge of the pectoral sucker, p.s; 

 pv, pelvic fins combined to form the pelvic sucker, pv.s. 



partly by the pelvics widely separated, and partly by the pectoral fins 

 (Fig. 479) ; the pelvic bones, cleithra, and postclavicles are expanded to 

 support it, and the whole 

 pectoral girdle is much 

 modified. The median fins 

 are spineless. 



Gobiesox, Lac. ; Choriso- 

 c/mraus, Barn. ; Lepadogaster, 

 Gowan ; Leptopterygius, Tr. ; 

 Diplocrepis, Gthr. widely 

 distributed, marine. 



Family TRICHOXOTIDAE. 

 Resembling the Callionymi- 

 dae, but with an ossified 

 suborbital arch, a more 

 normally forked post -tem- 

 poral, wide gill-openings, a 

 single dorsal, and scales. 

 Numerous vertebrae. 



Trichonotus, Schn. ; 



Taeniolabrus, St. Indian 

 Ocean. Hemerocoetes, C. and 

 V. ; N. Zealand. 



SUB-TIUBE C. The pec- 

 toral dermal rays all rest Fl(i - 48 - 



O11 the radials, of which Left pectoral girdle and fin-skeleton of lilennius 



rViprp arp apnprallv fnur r,r- 9attoru<jine, Bl. cl, cleithrum ; co, coracoid ; l.c, lateral- 



tnere are generally lour or line cana] . ^ postclavicie ; pst, post-temporal ; r, 



five, two 01' three tOUChin" 4th radial ; sc, scapula ; sri, supraclavicle ; AT./, scapular 

 ,, i mi i - foramen, 



the scapula. The scapula is 



usually perforate, but often much reduced (Fig. 480). The pelvic fins 

 have a spine and four derrnotrichs, but are liable to reduction. The 

 body has a short trunk, large head, and long tapering tail ; both the 

 anal and the dorsal fin are usually lengthened, the latter often reaching 

 to the head and giving rise to separate cephalic rays. 



