194 SPECIMENS OF PINNIPEDIA. 



6. Skull, with atlas and axis, young. Length 8 inches, over 



vertex lOh inches. Breadth, zygomatic 5i inches, 

 cranial 4| inches. Mandible 5 inches. Teeth not 

 worn ; no sagittal ridges. Hole in basi-occipital. 

 North Atlantic. Donor — Dr James Foulis. 



7. Skull, not adult. Length 9| inches, over vertex 13 



inches. Breadth, zygomatic 6| inches, cranial 41 

 inches. Mandible 6i inches. Teeth not worn ; 

 sagittal ridges feeble. Hole in basi-occipital. 

 North Atlantic. Donor — Dr James Foulis. 



8. Skull, young. Length 7f inches, over vertex lOi inches ; 



breadth, zygomatic 5f inches, cranial 4| inches. 

 Mandible 4| inches. Teeth not worn. Hole in basi- 

 cranial. No sagittal ridges. 

 North Atlantic. Donor — Dr James Foulis. 



9. Mandible, right half of. Length 6 inches. Teeth absent. 



Donor — Dr Rt. Brown. 



10. Skull, disarticulated, of a young Crested Seal. 



11. Generative Organs of a female Crested Seal which died 



in the Zoological Gardens, London, about three 

 months after parturition. The left uterine cornu 

 has been opened to show the folds of mucous 

 membrane ; the vessels were injected by Mr A B. 

 Stirling. Turner Collection. 



12. Vagina of the same Crested Seal, the anterior wall of 



which has been divided to show the folds of the 

 mucous membrane. A bristle has been inserted into 

 a duct which traverses the vaginal wall in an upward 

 direction. The rectum has been opened to show the 

 vascularity of the mucous membrane. 



Turner Collection. 



II. MACRORHINUS. (Mac.) 



Macrorhine, F. Guvier, Mem. Hist. Nat, xi., 1824. 



Premaxillae with horizontal part only present, sides of 

 anterior nares formed only of superior maxillai ; 

 tympanic bulla not much swollen, relatively flattened, 

 outer part prolonged into an expanded tympanic 

 plate, which becomes an elongated external meatus ; 

 infra-orbital foramen opens below the slope of 

 anterior floor of orbit ; mastoid process scarcely dis- 

 tinguishable ; posterior edge of vomer articulating 

 in front of truncated border of hard palate ; inter- 



