52 



SPECIMENS OF CETACEA. 



32. Tympanic bone, left, from the Aberdour Finner, July 



1858. Length 4f inches, breadth 2| inches, height 

 3 inches. See Nos. 30 and 43. 



Donor — Dr Joseph Bell. 



33. Tympano-periotic bones, fused together, right and left, 



from Harris. Each periotic is continued into a spur- 

 like mastoid process for attachment 18i inches long; 

 tympanic ossicles present. One incus detached. 

 Length of Tympanic 5^ inches, breadth 2| inches, 

 height 3| inches. Periotic elongated to 3h inches ; 

 inferior surface smooth ; meatus large. See No. 37. 

 November 1905. Donor — Dr Duncan Fletcher, Harris. 



■34. Tympanic bones, pair of. Length of bone 5 inches, 

 breadth 2| inches, height 3 inches. 

 Bergen, 1891. Purchased. 



35. Tympanic, left, obtained from a whaling seaman who 

 brought it from the Falkland Islands ; said to be from 

 the " Blue Whale," probably B. sibhaldi. Length 5^ 

 inches. The tympanic had sustained during life an 

 extensive comminuted fracture of the outer surface 

 of the bone which had been jDartially repaired. See 

 fio-ure below. Donor — Sir Wm. Turner, 1911. 



[The specimens marked " Hamna Voe " were obtained 

 through Messrs John and Thomas Anderson, of 

 Hillswick, Shetland.] 



36. Baleen, two plates of B. sibhaldi from the Hamna Voe 

 Finner, 1869; length 35 inches, width 12 inches. 

 Colour black, with strong black bristles. 



