64 CETACEA. 



Delphinus anarnacus, Desm. Mam. 520. 

 D.? spurius, Fischer, Syn. 515. 

 Anarnakus Groenlandicus, Lacep. Get. 164. 

 Ancylodon (spurius), Illiger, Prod. 142. 

 Heterodon anarnacum, Lesson, Man. 418. 



4. Hyperodoon, Longchamps, Mem. Soc. Linn. Norm. vii. 19. 1. 1. 

 Inhab. North Sea. Harwich, Dale. 



Heterodon Dalei (Lesson) is not from Dale's description of 

 this whale, but from Blainville's account of Delphinorhynchus 

 micropterus. 



Lacepede placed this species as the type of his Hyperoodon, 

 and refers Delphinus bidentatus to Delphinus ! 



F. Cuvier considers Hunter's and Baussard's as incontestably 

 the same species, taking no notice of the position of the dorsal 

 (Cetac. 242). Dale does not mention the teeth, but they are 

 only to be seen when the flesh is removed. 



** Dorsal Jin behind the middle of the back, triangular. 

 2. HYPEROODON ROSTRATUM. The BEAKED HYPEROODON. 



Blackish ; pectoral nearly , and dorsal f the length from the 

 tip of the beak ; blowers lunate, concave in front. 



Hyperoodon rostratum, Gray, Zool. Erebus fy Terror, 20. t. 3. 



Var. 1. Black above and below. Vertebrae 46; 11 lumbar and 

 19 caudal. " Blowers concave towards the head, rather in front 

 of the eye; palate smooth." Wesmael. 



Hyperoodon rostratum, Wesmael, Acad. Erux. 1840, xiii. 1. 1, 2. 



