286 APPENDIX. 



moderately long; it tapers from before backward, and has a stout, blunt, bifid, posterior termina- 

 tion. The anterior face is broadly triangular, the base of the triangle (forming the superior portion 

 of the neural arch ) being straight. The spine is concave below and grooved throughout its extent ; 

 the triangular portion of it overshadowing the arches of the third and fourth vertebra. The 

 pedicels of the axis are very slender. 



The centra of the third and fourth vertebrse are coossified, but not the arches. The summit of 

 the arch in the third is incomplete in this specimen, and the pedicels in this and the succeeding 

 cervicals are slender and compressed. In the third and fourth, the superior transverse processes 

 are only slightly indicated, and the inferior are absent ; the centra are slightly pointed below and 

 flattened above, though generally rotundate. 



The fifth and sixth cervicals are ankylosed by their centra and inferior transverse processes, 

 and the sixth by its centrum to the seventh ceiwical, forming the third mass previously mentioned. 



In the fifth and sixth, short inferior transverse processes are developed, though the superior 

 ones are insignificant. The centra are more squarely shajoed than in the preceding. There are 

 no spinous processes, but the suijerior portion of the arches is rather pointed. The planes of the 

 zygajjophyses are nearlj' horizontal, and the arches are not coossified. The pedicels of the seventh 

 ceiwical are much broader, and long recui-^'ed superior transverse and spinous processes are devel- 

 oped, though the inferior transverse processes are barely indicated. Two rounded knobs, which 

 are nearer the summit of the centrum than the processes of the preceding cervicals, sers'e as points 

 of articulation for the head of the first rib. In the first thoracic, this tubercle appears to be 

 missing, though it re -appears ou the second. Both the first and second thoracic have strong, 

 stout, superior transverse processes, with large and prominent facets for the tubercular articulations 

 of the ribs. The vertebra rajfidly increase in size and the spinous processes in length, and the 

 centra assume a more rounded outline. 



Two specimens of this species were obtained October 29th, 1872, by Captain C. M. Scammon. 

 The entire skeleton of one specimen, and the skull and cervical vertebrae of the other, above 

 described, were preserved. The former is now in the Mus. S. I. Of the species included under 

 the genus DeJphinus, as restricted by Gray {Svpl. Gat. 1871, pp. 68-9), D. hiigirosiris is entirely 

 black, of different proportions, with the posterior part of the palate keeled instead of grooved, and 

 the triangle extending onty to the tooth line instead of beyond it. (Reported from Japan.) D. 

 major has the grooves on each side of the palate, "very wide and rather shallow, scarcelj' extend- 

 ing behind the hinder half of the beak." (Habitat unknown.) I). Forsieri is differently colored 

 and proportioned. (Norfolk Island.) D. obliquidens, Gill, belongs to another genus. The remain- 

 der are all Atlantic species. 



Of other species of unknown or Pacific habitats, which have been described from drawings, or 

 of which the skull is unknown, and to some of which this sj)ecies might be suspected to belong, 

 B. Novce ZdandicB is differently colored (though the distribution of the color is somewhat similar), 

 and has a short beak; the pectorals are white and the flukes slate color; D. obscurus, Gray, to 

 which Peale's Piwccena ausiralis and D'Orbigny's D. bivittalus have been referred by Cassin and 

 Gray, belongs to an entirely different group. None of Peale's other species resemble this one at 

 all, and after long and careful consideration, I am forced to the conclusion that the species is 

 undescribed ; and it is with great pleasure that I have followed the request of Captain Scammon 

 and dedicated it to Professor S. F. Baird, of the Smithsonian Institution, to whose never-tirino- 

 courtesy and unfailing lilserality nearly every American natviralist is more or less indebted. 



Delphinus longirostris. 



1). longirostris, Gray, 18GG, p. 241; 1868, p. 5; 1871, p. 68. Schlegel, F. Jap., pi. 24. 



Japan ? 



Eighty -one inches long. Black, with large high dorsal. Skull, 22 inches; beak, 13| inches; 

 teeth, ||. Stuffed specimen. Cape of Good Hope; B. M. Skull, Malabar; Mus. Paris. Drawino-, 

 Japan ; Schlegel. 



