376 ANACANTHINI. 



Colonel Sabine in Winter Harbour, Melville Island, but the 

 specimens he obtained were so much decayed that he does not 

 venture to say whether they belonged to the genus Merlangus 

 or to Morrhua. In the hinder mandibular teeth being tricus- 

 pid it seems to be peculiar, and differs widely from polaris. 

 He enumerates the fin-rays as follows: Radii: D. 13-19-20; 

 A. 20-20; C. 40; P. 18; V. 6. These numbers approach 

 nearest to those of polaris. 



EXPLANATION OF THE PLATES. 



PLATE XXIII. PHOBETOB. TBJCUSPIS. Kg. 1, profile ; 2, upper 

 view of head ; 3, under view of head ; 4, premaxUlary teeth : all of 

 the natural size. 



PLATE XXIY. COTTUS GLACIALIS. Pig. 1, profile ; 2, plan of 

 dorsal aspect ; 3, teeth of premaxillaries and vomer : all these of the 

 natural size. Pig. 4, teeth of the upper jaw, magnified. 



PLATE XXV. GASTEROSTETJS INSCULPTUS. Pig. 1, profile, natural 

 size. Fig. 2, dorsal aspect, magnified to twice its linear dimensions. 

 Pig. 3, pelvic bones, much enlarged. 



PLATE XXVI. LYCODES MUCOSUS. Pig. 1, profile ; 2, top of the 

 head; 3, under aspect of the head ; 4, roof of the mouth ; 5, man- 

 dible : all of the natural size. 



PLATE XXVII. GUNNELLUS FASCIATUS. Pig. 1, profile; 2, under 

 surface of head and throat : natural size. 



PLATE XXVIII. LUMPENUS NUBILUS. Pig. 1, profile ; 2, under 

 surface of the head and throat : natural size. 



PLATE XXIX. GYMNELIS VLUIDIS. Pig. 1, profile; 2, top of the 

 head ; 3, under aspect of the head : natural size. 



PLATE XXX. GYMNELIS VIBIDIS, var. unimaculatm. Fig. 1, pro- 

 file ; 2, top of the head : natural size. 



