BLENNIIFORMES 



457 



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



Oblique ventral view of Lepadogaster gouanii, Lac. a, anus; /)/■, branchial opening; n, 

 nostril ; p, left pectoral tin 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- 

 ':hismus,B(im. ; Lepadogaster, 

 Gowan ; Leptopteryyius, Tr. ; 

 Diplocrepis, Gthr. — widely 

 distributed, marine. 



Family Tkichonotidae. 

 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. Hemcrocoetes, C. and 

 V. ; N. Zealand. 



Sub-Tribe G The pec- 

 toral dermal rays all rest 

 on the radials, of which 



Fig. 4.80. 

 Left pectoral girdle and lin-skeleton of Bknnius 



gattorugine, Bl. d, cleithrum ; eo, coracoid ; l.c, lateral- 

 Tliere are generally lour or i me canal ; pel, postclavicle ; pst, post-temporal ; r, 

 five two Or three touching 4th radial ; sc, scapula ; sd, supraclavicle ; sc.f, scapular 

 , ' . _,, . P foramen. 



the scapula, ine scapula is 



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

 have a spine and four dermotrichs, 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. 



