BLENNIIFORMES 



459 



The caudal fin may, however, disappear from the tip of the tapering 

 tail, and the very elongate dorsal and anal fins may then meet. There 

 is no subocular shelf, and the pelvics are often vestigial or absent, and 



$;-'■■ 



^ mm 



Fio. 483. 



Dentition of the Wolf-fish, Anarrhicluis lupus, L. (After Giinther.) Upper teeth on the 

 right, lower teeth on the left. 



also the scales. As a rule, there are no spines, except sometimes in the 

 hinder regions of the dorsal. The gill-membranes fused to the isthmus. 



Zoarces viviparus, L. (From Glaus and Sedgwick.) A, anus ; V, urinogenital aperture. 

 The jugular pelvic tins are seen below the head. 



Zoarces and others are viviparous. Some deep-sea forms lose their eyes, 

 as Typhlotus, Aphyonus ; also the cave-forms Stygicola and Lucifuga. 



mm> 



Fits. 485. 

 Lycodes perspidllum, Kr. (From Jordan and Evermaim.) 



Zoarces, Guv. (Fig. 484) ; Lycodes, Eeinh. (Fig. 485) ; Lamprogrammus, 

 Ale. ; Lycocara, Gill ; Gymnelis, Reinh. ; Melanostigma, Gthr. ; Neobythites, I 

 G. and B. ; Typhlonus, Gthr. ; Rhodichthys, Coll. ; Aphyonus, Gthr. ; 

 Brotula, Cuv. — marine. Stygicola, Gill ; Lucifuga, Poey (Fig. 486) — J 

 caves of Cuba. 



