8EA-L10NS, AND SEA-BEAKS. 11 



Cutting-teetli -j-, conical ; outer largest, with a distinct collaret on 

 inner side ; two middle lower decumbent, the rest perpendicular. 

 Grinders |-^, thick, with a broad conical crown, having a distinct 

 collaret on the inner side and a small lobe at each end, placed in a 

 regular series, the front one of the upper and lower jaw being 

 partly on the inner side of the base of the canines, one-rooted, the 

 rest all two-rooted. 



1. MoNACHUs ALiiivENTEK, Gray, Cat. t^eals 6( Whales, p. 19, and 

 p. 18, fig. 6 (skull, from Cuvier). (Fig. 5.) 



Animal, young, stuffed. 



1063 a. ISkull (PL VI.), imperfect. 



Heliophoca atlautica, Gray, Ann. ($- May. N. H. 1854, xiii. p. 201. 

 Madeira, Deserta (Jrandc Island. 



Presented by II. MacAndrew, Esc). 

 Animal, adult, stuffed. 

 106:3 6. Front of skull with teeth. 

 Madeira, Deserta Grande Island. 



Presented by II. MacAndrew, Esq. 

 Animal, young, stuffed. 



1068 c. Skeleton of ditto, mounted. iSkvdl, length 8| inches (P7toca 

 leporina). 

 Algiers ( Verreaux). 



Animal, stuffed. 63. 4. 1. 1. 



1421 a. Skeleton of ditto. Skull, length 10| inches, breadth 7|. 

 Senegal. 



2. MoNACHTJS TROPiCALis, Gray, Cat. 8eah <Sf Whales, p. 20 ; Suppl. 

 p. 3. 



a. Animal, stuffed. 

 Jamaica. 



II. Nasal bmies united toyether, elonyate. Cuttiny • teeth \, conical, project- 

 iny forwards. Claios of hind feet small. (Southern hemisphere.) 



Tribe 2. STENOIIHYNCHIN A, Gray,Sup2il. Cat.SealsSf Whales, 

 p. 3. 



* Sktdl oblony elonyate. Grinders deeply lobed. 



8. STENORHYNCHUS, Gray, Cat. Seals Sf Whales, p. 15 ; Suppl. 

 p. 3. 



Nasal bones coalesced or partly separated, oblong, four-sided, 

 narrowed, elongate triangular behind. Grinders three-lobed, middle 

 lobe largest. 



1. Stenorhynchus leptonyx. Gray, Suppl. Cat. Seals ^'Whales, p. 4. 



Animal, adult, stuffed. 



325a. Skull (fig. 6) of adult. Nasal bones partly separate. (Pl.VlII.) 

 43. 1.'8. 4. 



