EPrODONTIDJi. 97 



1. Hyperoodon butzkopf. B.M. 



Hyperoodon butzkopf, Gray, I. c. p. 330 ; Synops. Whales §• Dolph. 



p. 9, t. 3. 

 Hyperoodon rostratum, Bernhardt, in Eschricht's Vid. Selsk. v. t. 7 



(male foetus and skeleton) ; Gray, Sytwps. Whales 8f Dolph. t. 3. 



f. 1-4. 



Inhab. North Sea. 



1. Hyperoodon semijunctus, Cope, Proc. Acad. Nat. Set. Philad. 1865, 

 p. 15 (280), 1869, p. 21. 



Inhab. Charlestown Harbour. 



Most likely a variety of H. butzkopf. 



2. LAGENOCETUS. 



Lagenocetus, Gray, 1. c. pp. 327, 336 ; Synops. Whales Sf Dolph. p. 9. 

 Beak of the skull straight, erect, very large, flattened, higher than 

 the occiput. 



1. Lagenocetus latifrons. B.M. 



Lagenocetus latifrons, Gray, I, c. p. 339 ; Synops. iVhales Sf Dolph. 



p. s.fJL.y- 



Hyperoodon latifrons, Gray, Zool. Ereb. fy Ter. t. 24 ; Bernhardt, in 

 Eschrichfs Vidensk. Selsk. Skr. v. t. 6 (skull). 



Inhab. North Sea. 



" Plate 6 represents the skull of a male of Hyperoodon latifrons 

 (Gray), from the Faroer, of which the complete skeleton, 25 feet 

 long, is preserved in the University's Museum. 



" Eschricht believed, as is known, that H. latifrons was established 

 on a very old male of the common Dogling, Hyperoodon rostratus ; 

 but Gray's species must now be regarded as well grounded. 



" Plate 7 represents the male (foetus) of the common H. rostratus. 

 All figures of half the natural size." — Bernhardt. 



Family 17. EPIODONTIM). 



Epiodontina, Gray, Cat. S. Sf W> p. 327. 

 Epiodontidae, Gray, Synops. Whales § Dolph. p. 9. 



Blower lunate. Skull : — beak simple ; maxillaries not dilated 

 above; intermaxillaries enlarged behind, forming a more or less 

 deep cavity round the nostrils. Teeth 2 or 4 in front of the lower 

 jaw, conical or cylindrical. Cervical vertebrae : — first, second, and 

 third united into one mass, which is produced and truncated above : 

 the rest thin, free. 



