SCANDINAVIAN CETACEA. 235 



in Bergen. The latter have one vertebra less in the lumbar and caudal region; but this differ- 

 ence is of no importance^ as I found the number of vertebrae corresponding on one or two of the 

 skeletons in Copenhagen. 



It may seem that some of the above-mentioned osteological differences could be explained by 

 difference of age ; but the sternum being united into only one bone, the front teeth being much 

 worn down, and the strongly-developed processes not exhibiting sutures, seem to show that the 

 smaller skeletons at Bergen are of as great an age as the one at Lund. 



This species does not appear to be very scarce on our western coasts, although it is not 

 caught as often as the following. It is not so social, and is oftener found alone. It was 

 probably this species that Nilsson saw off the coast of Helgeland, in Norway, from what he 

 mentions, 1. c, page 606. A complete skeleton of a specimen that was stranded at Ronneby in 

 March, 1851, is, as previously stated, preserved in the University Zoological Museum at Lund, 

 from which skeleton the above description is taken. The skull described in ' Skand. Fauna,' 

 p. 604, probably also belongs to this species. Two skulls from the southern coast of Norway 

 are preserved in the Zoological Museum of the University of Christiania. 



2. O. ScHLEGELii, Nov. Nom. Lesser Killer, or Whale-dog.^ 



Bibs 11 pairs. Height of dorsal fin about equal to its length at the base, and not very large. 

 The intermaxillary bones resemble those of the preceding species. 



Delphinus orca, Lacépede. Histoire naturelle des Cétacées, p. 298. 



— — H. Schlegel. Abhandlangen aus dera Gebiete der Zoologie u. verg- 



leincheude Anatomie, ii heft, p. 3, tabs, vii and viii, 1843. 



Note. — Although Lacépede has distinguished his Dauphin Gladiateur from his Dauphin Orque he 

 seems to have confounded them in the description. This seems to be the case more particularly with 

 the latter, to which he has given dimensions that probably belong only to the former. His description 

 is generally too incomplete, and too little discriminating to be applied to either with any certainty. 

 Schlegel is the only late author that has described this species with such minuteness that the 

 description can he applied to it with full certainty. 



Its largest size is yet unknown ; but from the measurements stated by Schlegel, and from 

 the length of the skeletons examined by me, it seems that the usual length of full-grown specimens 

 is from 16' to 18'. The form of its body is rather robust, although not much thicker than of some 

 species of the genus Delphinus. Its greatest thickness is under the dorsal fin, which is placed 

 considerably before the middle of the body, although behind the anterior third. The head is 

 obtusely pointed and the nose blunt, but not rounded, and neither above nor behind Hmited by 

 any conspicuous notch. The hinder part of body, behind the anal opening, which is about the 



^ This name is translated from the Norwegian " Wagnhund." It is probably this species that 

 is called by this name on the northern coasts of Norway. Several of them attack the whales 

 together, and cling to their sides, from which the name is derived. The specific name 0. Schlegelii, 

 here used, was long since suggested to me by Dr. J. Koren. 



