208 DR. J. E, GRAY ON BRITISH CETACEA. [May 24, 
from Greenland in the Museum collection, but differ in the tympanic 
bone being rather shorter and more swollen. The latter is nearly 
regularly oblong, and very convex at the upper part, with a some- 
what hemispherical outline and rather wider below. 
The bones attached to the tympanic are broad and expanded, very 
unlike the same bones in the Greenland species. 
It may be the same as the one from the Cape; but it is well to 
indicate the existence of a Humpbacked Whale in this district, in 
the hope of inducing some naturalists to give an account of it, or 
to send a skeleton of it to England for comparison. 
M. Van Beneden states that there is the incomplete skull of a Me- 
gaptera, brought from Java by Professor Reinhardt, in the Leyden 
Museum, showing that the genus is very generally distributed ; and 
it is to be observed that whenever specimens of Whales can be pro- 
cured from distant localities to be compared, it is proved that each 
species has only a limited habitation, each probably making a more 
or less large migration within its district. 
MEGAPTERA LONGIMANA. (Figs. 5, 6, 7.) 
Balena boops, O. Fab. Fauna Greenl.; Turton, Brit. Fauna, 16 ; 
Nilsson, Scand. Fauna, 639. 
Whale, Johnson, Trans. Nat. Hist. Soc. Newcastle, vol. xvi. t. 1, 
female, on its back. 
Balena longimana, Rudolphi, Mem. Acad. Berlin, 1829, 133. 
t. 12, male. 
Balena boops (Keporkak or Langhaandede Finhval), Eschricht, 
K. Dansk. Vet. Selskab. Afh. 1845, t. 1, 2, 3, 4. 
Atlas vertebra of Megaptera longimana. 
Extreme width 20 inches ; height 13 inches. 
