105 



GRAMPUS (G-RAYius) (?), RicHAEDSOKii, GHAT. Kichardson's Dolphin. 

 Synonym Grampus Richardsonii, Gray, S. & W., p. 299, Suppl. p. 83. 



Teeth, %2, rather large, far apart, sub-cylindrical at the base, sym- 

 physis of lower jaw wide in front. 



Dr. Gray describes this species from the lower jaw only, which pre- 

 sents in the symphysis a variation of structure sufficient in his opinion 

 to constitute a new species. 



Inhab : Cape of Good Hope. 



Family X. HYPEROODONTID^]. 



Head beaked ; cheek-bones an,d hinder edge of the skull greatly 

 elevated into high occipital crests by vertical bony partitions, rendering 

 the form of the skull different to that of any other cetacean, and 

 highly asymmetrical ; upper jaw larger and broader than the lower one, 

 dorsal fin small, subfalcate, placed much beyond the middle ; pectoral 

 fins small, ovate, low down on the sides of the body ; costo-sternal 

 ribs cartilaginous ; mandibular symphysis rather long. 



Teeth, ~ lt or -, well in front, small, conical, frequently hidden in the 

 gums. 



Genus HrpEBOODON, 1 Lacepede. 



Forehead rounded in front ; beak of the skull with a high crest on 

 each side, and with maxillary tuberosities at its base ; cervical vertebrae 

 firmly anchylosed. 



HrpEBOODON 1 BUTZKOPF 2 , Bonnaterre. The Bottle-head. 

 Synonyms Delphinus lutzkopf, Bonn. 



Syperoodon lutzkopf, Lacep., Gray, S. & W., p. 330, 



Suppl. p. 97. 



Hyperoodon rostratus, Lilljiborg, Flower. 

 Inhab : North Sea. 



The colour of this frequently-caught whale on the English coast is 

 glossy-black, becoming a pale lead-colour underneath. It is a large 

 animal, reaching to the length of from twenty to thirty feet. The food 

 consists principally of various kinds of cephalopods, for in the stomach 

 of one stranded in 1853, were many hundred cuttle-fish beaks, BO 

 placed one within the other as to ride regularly imbricated in rows of 

 ten, fifteen, or twenty together. 



1 v*fp, above, and o5oi5s, tooth ; in allusion to the teeth in the palate described by 

 Baussard, but which in all other specimens hare never been seen. 



2 butzkopf (German), pointed head. 



