22 



HAND-LI8I OF SEALS, MOKSBS, 



very light, thin, and still separate, especially those of the under part 



of the brain-case. They both want a great part of their cutting-teeth 



and grinders, but the alveolae left by them show that the permanent 



set were well developed ; the canine teeth are being developed. The 



lower jaws are wanting in both, so that we cannot tell to which 



species they belong. The front of the palate is contracted. 



Their size, which is as large as that of the older skulls in the 



Museum, makes it probable that they are the young of the large 



common 0. jubata ; but they are both rather narrow, and one comes 



from the Falkland Islands and the other from Coquimbo, so that 



they are found in the seas of both sides of South America. 



335 m. Skull, without lower jaw, 8f inches long and 41 inches wide. 



Grinders, which are all absent, arc crowded, forming a very 



irregular line, very unlike the series of grinders in the smaller 



skulls. This may be a young male of 0. minor, on account 



of its narrow shape. 



Otaria jubata, Orai/, Zoo/. Erebus ^- Terror, t. xvii. figs. 1, 2. 

 Chili, Coquimbo. 47. 4. 20. 13. 



Presented by the Haslar Hospital. 



335 h. Skull, without lower jaw, 7i inches long and 4i inches in 

 width, probably of a female. The upper canines are but partly 

 exposed, and are not so large as the outer canines or the front 

 grinders. About 11 months old. 

 Falkland Islands, North Point (Leconte). 69. 2. 24. 4. 



There is a third skull of a very young animal of a smaller size in 

 the Museum. It has the short wide lower jaw with a rounded 

 front of 0. jubata, but is of such a small size that it indicates a 

 variety of that species. 



335 q. Skeleton of a very young animal, taken from Guano. The 

 skull is 6-| inches long and 3|- inches broad, has the bones not 

 knit, and is in the act of changing its teeth, the canines of 

 the milk-set being retained. The grinders are large, the upper 

 series occupies 1| inch in length, and the lobes of the teeth 

 are well marked. The lower jaw broadly diverges, and the 

 chin is large, broad, and rounded. 

 Peru, Guinesse Island. 70. 1. 19. 1. Presented by H. Lloyd, Esq. 



There is a series of skulls in the Museum which agree with Otaria 

 jubata in the form of the lower jaw, it being broad and rounded in 

 front, with a short lower margin, and broadly separated at the con- 

 dyles, the middle of the branches of the lower jaw being rather 

 bowed out. They evidently belong to both sexes. The skulls are 

 rather solid and the bones well united together ; but they have not 

 got the occipital ridges of adult skulls, as their canines are generally 

 developing. They are probably skulls of the growing animal of this 

 species. They vary in their breadth compared with their length, 

 some being narrower. 



335 b. Skull of male, 10 inches long, 5| wide at the condyles. The 

 bones well knit. The permanent cutting-teeth and grinders 



