Dr. J. E. Gray on Seals. 345 



Section I. CuUmg-teeth |, lower conical ; hind toes clawed. 

 Tribe 1. Phocina. The front grinder in each jaw single-, 

 not, as the rest, two-rooted. Head narrow in front. 

 Muffle bald, callous, and with a central erect groove be- 

 tween the nostrils. 



I. Muzzle broad, whiskers smooth ; third finger longest. 



Skull : face large, forehead convex, palate arched 

 behind. Lower jaw strong, ramiserial angle under 

 the front of the condyle; teeth small, compressed, 

 far apart. 



PJioca, Gray, Cat. S. & W. 31, f. 10. 



II. Muzzle conical, whiskers waved ; first finger longest. 

 Skull tapering in front ; forehead flat ; face small. 



* Lower jaw strong, ramiserial angle in a line rather 



in front of the condyle ; teeth thick, conical, lobed. 



Pagoi~)Mlus.i Gr^^y? il>id. 25, f. 8. Hinder end of 



palate truncated. 

 Ilalicyon, Grray, ihid. 27, f. 9. Hinder end of 



palate arched. 

 Calloceplialus^ Grray, ibid. 21, f. 7. Hinder end 

 of palate angular. 

 ** Lower jaw weak, ramus sloj)ing, angle in front of 

 the process in front of the condyle ; teeth small, 

 separate, compressed and lobed, especially in the 

 lower jaw. 



Pagomys^ Grray, ihid. 22. Hinder end of palate 

 angular. 

 Tribe 2. Halichcerina. The grinders all single-rooted, ex- 

 cept the two hinder of the upper and the hindmost of the 

 lower jaw. Head broad, square in front ; muzzle large, 

 truncate ; muffle hairy to the edge and between the nos- 

 trils ; whiskers waved. 



HalichoeruSj Gr^ay, ihid. 33, f. 11. North Sea. 



Section II. Cutting-teeth \. Muffle hairy to the edge and 

 between the nostrils. 

 Tribe 3. Monachina. Lower cutting-teeth notched on the 

 inner side ; the first grinder in each jaw single-rooted, 

 the rest two-rooted. 



MonachuSj Grray, ibid. 18, f. 6. 



Tribe 4. Lobodontina. Cutting-teeth concave ; grinders 

 deeply and immensely lobed ; the first, second, and third 

 upper and the first lower grinder one-rooted, the rest two- 

 rooted. Hinder claw small. Muffle hairy. 



Lobodon^ Grray, ibid. 9, f. 2 (skull). Lower jaw 

 with angle beneath the condyles. Antarctic Sea. 

 Ann. & Mag. N. Hist. Ser. 4. Vol. iv. 25 



