CETACEA. 63 
\ 
Lacepéde (Cetacea, 164) described it as a genus under the name 
_ of Anarnacus, and [liger (Prod. 142) under that of Ancylodon ; 
; and in the Zoology of the Erebus and Terror, on the strength of - 
Fabricius’s usual accuracy, I adopted the views of this naturalist; 
F but Prof. Eschricht’s observations have induced me to believe that 
- Cuvier and other naturalists have been right im considering it as 
_asynonym of Hyperoodon. 
__ The error of Fabricius is very pardonable, as Desmarest and 
: Lesson have mistaken the upper for the lower jaw, in Chemnitz’s 
_ description (Desm. Mam. 520; Lesson, Mam. 427; Cetac. 120); 
and M. F. Cuvier has not well understood it, as pomted out by 
i) M. Wesmael (/. c.), and Illiger makes the same mistake with re- 
_ gard to his species. 
___ Physeter bidens (Sowerby) has been referred to this genus, but 
the form of the head and position of the fins, the teeth, and the 
_ form of the skull, show it to be a Ziphius. 
___ The descriptions of the species of this genus are so different, 
_ that I am inclined to keep them distinct, for the purpose of call- 
; ing attention to them. Cuvier regarded them all as one. 
‘ + Crest of skull thin and far apart on the upper edge. 
+ Dorsal Jin im the centre of the back. Hyperoodon, Lacep. 
; Uranodon, Iiliger. 
1. Hyperoopvon Burzkopr. The BorrLEe-HEAD. 
wr 
be Black, beneath lead-coloured; dorsal fin central; lower jaw 
i, 
_ with two pointed teeth in front, sunk in the gums ; c palate with 
_ acute, hard poimts;”’ blowers transverse, iunate, with the con- 
_ yexity in front. 
Ha. Hyperoodon Butzkopf, Lacep. Cetac. 319, from Baussard, 
Journ. Phys. xxxiv.201.t. , copied F. Cuv. Cetac.241.t.17. 
let ll: £1, cdpis Gray, Zool. Erebus & Terror, 20. t. 3. 
£1, 2, animal, f. 4, 5, skull. 
Delphinus 3 ? edentulus, Schreb. Saugth. t. 347. 
Nodus (edentulus), Wagler, N. S. Amph. 34. 
D. Hyperoodon, Desm. Mam. 521; Fischer, Syn. 515. 
___D. Honfloriensis, Desm. 
—__D. Butzkopf, Bonnat. 25; Desm. N. Dict. ix. 176. 
___ _Heterodon Hyperoodon, Lesson, Man. 419. 
2. Bottle-head, or Flounder’s Head, Dale, Hist. Harwich, 411. 
ot t.149, cop. + P 
Beaked Whale, Penn. Brit. Zool. t. 
23. Monodon spurius (Anarnak), O. Fab. Faun. Gren. 31; Bon- 
+» mat, Cetol. 11; hence 
vf «a 
aa titania 
