Mandibular flaps almost undeveloped, not raised, cylindrical, connected 

 anteriorly. Especially developed in male. Lower lip widens posteriorly 

 and anteriorly is connected to lower jaw. Distance between free parts of 

 lower lips wide, more in females than in males . On lower jaw is a row of 



large sensory pores (7 in females, 8 in males extending 

 on preopercular . Upper lip adnate in front. Above upper 

 jaw is a row of large sensory pores (6); in some (large 

 females) merge forming only 1 instead of 2 deep cavities . 

 Upper part of cheek hangs over upper lip in a fleshy fold 

 (particularly in females). Pores below upper part of 

 I I o cheek. Upper jaw short, extending posteriorly only to 



^ ^ middle of eye or vertical from posterior edge of pupil. 



Snout greatly produced making teeth visible in males 

 and even front part of vomer and palatine in females. 

 Development of small pores on head is characteristic, 

 their dist ribution and number differ greatly in males 

 and females. In latter (females) small scales extend 

 on nape and gill cover as if crowding out the pores . 





Fig. 16. Ly 



cenchelys 



camchaticus 



(Gilbert & 

 Burke) Male. 



i'A^' 



Ly- 



Fig. 17 

 cenchelys 

 camchaticus 

 (Gilbert & 

 Burke) Female . 



Teeth on jaws quite small, oiten unequal, however 

 there are no canines . Along the upper jaw, the entire 

 length of the premaxillary is a single row of fine teeth, 

 pointed only in males, slightly blunt in females . In 

 males 5-6 teeth in the anterior part of the inner row, 

 in females 1-2 . Teeth on lower jaw in one row; anteriorly 

 forming a patch from 3 or 4 disorderly arranged rows . 

 Vomer with four teeth, palatine with 9-12 teeth in a 

 single row . Palatine membrane well developed (always 

 absent in the genus Lye odes Reinhardt) . Gill rakers 

 on the first gill arch are smooth, no elements on in- or 

 outside. Gill openings wide in males (not quite extend- 

 ing to ventral base); in females smaller, reaching only 

 a little below edge of pectoral base. 



Body considerably elongated, depth at anal base 

 5.7-8.0% L, predorsal 18.1-21.5% L, preanal 29.6-32.9% L, 

 preventral 13.6-13.9% L. Length of upper jaw 5.9-6.8% L, 

 length of lower jaw 6.4-8.3% L. 



Squamation well developed, differing with sex. In females anteriorly scales 

 are large (in 220 mm . example, behind end of pectoral on midline of body 10 scales 

 measure 10 mm). Toward caudal end, scales become smaller, covering a con- 

 siderable portion of gill cover and upper part of head. On dorsal and anal extending 

 to edge of fin and on end of pectoral on outside are individual scales . On inside of 



69 



