58 



SPECIMENS OF CETACEA. 



2. Tympanic bones, pair of, from the whale stranded at 

 Kinneil, Bo'ness, September 1872. Length of tympanic 

 4-8 inches, breadth 2-2 inches, height 2f inches. Outer 

 surface, anterior division 2^ inches, posterior division 

 2| inches ; cavity opening horizontally along upper 

 margin of inner surface 2 inches from keel, Eustachian 

 end strongly notched. Figure of outer surface below. 

 In the description of the whale in Proc. Roy. Soc. 

 Edin., vol. xi., the characters and dimensions of the 

 tympanic are compared with those of B. rostrata and 

 B. sibbaldi. It differs from B. muscidus in the outer 

 surface not being so tumid, its anterior border is not 

 defined by a distinct groove, and the inner surface is 

 more flattened. The keel is a narrow ridge, and the 

 adjoining surfaces are laterally compressed. 



Turner Collection. 



3. Tympanic bone, left, with tj^npanic ossicles, from the 



Skoro Whaling Station, Norway, 1894. Length 4| 

 inches, breadth 2\ inches, height 2f inches. Malleus 

 fused with lip-like process. 



Donor — Sir Dyce Duckworth, Bart. 



4. Tympanic bone, left, from a male, 36 feet long, killed at 



Widewall Bay, Orkney, 1884. Length 4| inches, 

 breadth 2| inches, height 2f inches. Sir John 

 Struthers in Reports of BritlsJi Association, Aber- 

 deen, 1885, p. 1053. " Donor— Sir John Struthers. 



5. Tympanic bones, pair of, one with ossicles, from New 



Island, Falklands, South Atlantic ; purchased from a 



