35: 
36. 
37: 
38. 
39: 
40. 
MAMMALIA. 9g 
Order CETACEA. 
Sub-order MYSTACOCETT. 
Fam. BALZNIDA. 
Balzena biscayensis LZschricht. Atlantic Right-whale. 
Fam. BALZNOPTERIDZ. 
Megaptera longimana (udolphi). Hump-backed 
Whale. 
Balezenoptera 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 of alenoptera 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. 
Balzenoptera 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. 
Balzenoptera borealis Zess. Rudolphi’s Rorqual. 
Balzenoptera rostrata (fad.). 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 ODONTOCETI. 
Fam. PHYSETERIDA. 
Sub-fam. PH YSE TERINAZ. 
. Physeter macrocephalus Z. 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. 
