24 CETACEA. 
Skull :—Nose narrow, broad behind, and contracted in front. 
Temporal bone broad. Interorbital space wide. Lower jaw much 
arched.—Cuww. Oss. Foss. v. t. 26. f. 1, 3. Cervical vertebrze well - 
developed and separate. The first rib is forked at the end near 
the vertebra. The baleen is short, broad, triangular, much longer 
than broad at the base, rapidly attenuated, edged with a series of 
bristle-lke fibres, which become much thicker and more rigid 
near and at the tip. Rather twisted, especially when dry. 
The foetal specimens exhibit numerous rudimentary teeth in 
both jaws. These are figured by Eschricht, Danish Trans. iv 
t. 4. f. a, b, from specimens 35 and 45 inches long.—Copied Zool. 
Erebus and Terror, t. 30. f. 2-14. 4 
Bunch Whale, Dudley, Phil. Trans. xxxii. No. 387, 258. 
Humpback Whale, Whalers, Beale, Hist. Sperm W. 12. 
Balzena nodosa, Bonnat. Cet. 5. 
Balznoptera, pars, Lacep. 
Megaptera, Gray, Zool. Ereb. & Terror, 16. 
Megapteron, Gray, Zool. Ereb. & Terror, 51. 
Mysticetus, sp. Wagler, N. S. Amp. 33. 1840. 
Balenoptera, § Boops, Brandt, Voy. Al. Orient. 4to, 1845. , 
? Cyphonotus, Rafin. Anal. Nat. 61. 1815 (no character nor 
type). 4 
ie richie: Eschricht, Nord Wallthier. 1849, fol. | 
Balznoptera leucopteron. Lesson, in the Nouv. Tab. Reg. Anim. 
202, gives this name to * La Hump-back des pécheurs”’ of the 
** Hautes latitudes 8S.” 
The Bunch Whales are easily known from the Fimners (Bale-_ 
noptera), in being shorter and more robust, the skull nearly 4 the — 
entire length, the head wider between the eyes, the mouth larger, © 
the lip warty, and the nose large and rounded; the plaits of the 
belly and throat are broad; the dorsal is more forward, the pec- 
toral larger and narrow, about 4 the length of the body, and the ~ 
tail is wider, and the lobes generally more pointed. - 
The skull of this genus is intermediate in form between that of | 
Balena and Balenoptera. a 
This kind of whale was noticed by Dudley (Phil. Trans. xxxin. 
258). He says, “The Bunch or Hump-backed Whale has a bunch — 
standing in the place where the fin does m the Fin-back ; this 
bunch is as big as a man’s head, and a foot high, shaped like a 
plug pointing backwards. The bone (whalebone) is not worth 
much, though somewhat better than the Fin-back. His fin (pee- 
toral) is sometimes 18 feet long, and very white. Both Fin-backs” 
and Hump-backs are shaped in reeves (folds) longitudimally from _ 
head to tail, on their belly and sides, as far as their fins, which — 
are about half-way up the sides.” Ye . 
