MAMMALIA. 9 



Order CETACEA. 

 Sub-order MYSTACOCETI. 



Fam. BAL^NID^. 



35. Balaena biscayensis Eschricht. Atlantic Right-whale. 



Fam. BAL^NOPTERID^. 



36. Megaptera longimana {Rudolphi). Hump-backed 



Whale. 



37. Balaenoptera musculus (Z.). Common Rorqual. 



Casual visitant, of rare occurrence. A young one caught at 

 Bridlington, April 5th, 1880, 16 feet long, is recorded by 

 the name oi BalcEuoptera boops Flem., or northern rorqual 

 (E. Howarth, Nat., 1880, p. 26). Probably some of the 

 whales described as 'rorquals,' 'finners,' &:c., caught or seen, 

 may be of this species, but specimens are seldom examined. 



38. Balaenoptera sibbaldii {Gray). Sibbald's Rorqual. 



Casual visitant, of extremely rare occurrence. One, a young 

 one, about 50 feet long, the skeleton of which is in the 

 Hull Museum, was taken in the Humber, and described by 

 Dr. Gray. 



39. Balaenoptera borealis Less. Rudolphi's Rorqual. 



40. Balaenoptera rostrata (Fab.). Lesser Rorqual. 



Casual visitant, probably not unfrequent. 



Dogger-bank, one 17 feet long, described by John Hunter, 



Phil. Trans., 1787. (Gray, Cat. of Seals and Whales, 2nd 



Ed., p. 193). 

 Hull, one, young, taken in the Victoria Dock Basin, Sep. 9, 



1869, skeleton in Hull Museum. 

 Sewerby, near Bridlington, one, 16 or 17 feet long, stranded, 



spring of 1859 (Rev. Yarburgh Lloyd Greame, MS.). 



Sub-order ODOXTOCETI, 

 Fam. PHYSETERIDiE. 



Sub-fam. PHYSETERIN^. 



41. Physeter macrocephalus L. Sperm Whale. 



Only one occurrence. An adult male, 56 feet long, was cast 

 ashore at -Tunstall, in Holderness, in 1825 ; the skeleton, 

 47 feet 7 inches, is preserved at Burton Constable. 



