PHOCID®. 201 
M. 1139. Cast of the first rib. The original is figured by Van 
Beneden, op. cit. pl. vii. fig. 5. Purchased. 
M. 1138. Cast of a portion of the sternum. The original is figured 
by Van Beneden, op. cit. pl. vili. fig. 4. Purchased. 
M. 1136. Cast of the sixth cervical vertebra (imperfect). The 
original is figured by Van Beneden, op. cit. pl. vili. fig. 3. 
Purchased. 
M. 1137. Cast of the sacrum (imperfect). The original is figured 
by Van Beneden, op. cit. pl. vii. fig. 4. Purchased. 
M. 1141. Cast of the ilium (imperfect). The original is figured by 
Van Beneden, op. cit. pl. vil. fig. 3. Purchased. 
Family PHOCID&. 
_ Dentition (in existing forms) :—I. = C. = Pm. 2 M. - 
Genus MESOTARIA, Van Beneden’*. 
This genus is provisionally referred by its founder to the Otarude; 
but Allen, in the ‘History of the North-American Pinnipeds,’ 
pp. 217-220 (1880), classes it in the present family. 
Mesotaria ambigua, Van Beneden’. 
This species is considered to be allied to the existing Cystophora 
cristata. 
Hab.’ Europe. 
M. 1152. Casts of two molars. The originals are figured by Van 
Beneden in the Ann. Mus. R. Hist. Nat. Belg. vol. 1. 
pl. ix. figs. 1, 2. 
M. 1165. Cast of the left scapula. The original is figured by Van 
Beneden, op. cvt. fig. 7. 
M. 1155. Cast of the humerus. ‘The original is figured by Van 
Beneden, op. cit. figs. 9, 11. 
M. 1156. Cast of the right innominate. The original is figured by 
Van Beneden, op. cit. fig. 8. 
1 Bull. Ac. R. Belg. ser. 2, vol. xli. p. 783 (1876). 2 Loe. cit. 
3 The originals of the casts of this and the following genera of Seals were 
obtained from the Antwerp Crag, and are preserved in the Museum at Brussels. 
The casts were acquired by purchase. 
