294 APPENDIX. 
The following are its dimensions, in inches and decimals : 
Length of skull in straight line 14 .00 
Internal length of brain cavity 4 .25 
Length of beak anterior to maxillary notches 8 .00 
Length from tip of beak to anterior margin of superior nares 6 .30 
Length from tip of beak to posterior notch of palate 9 .20 
Length from tip of beak to posterior tooth 6 .75 
Height of skull at vertex 5 .40 
Greatest breadth at zygomatic process of squamosals 6 .50 
Breadth at supra -orbital ridge 5 .50 
Breadth between maxillary notcbes 3 .25 
Breadth at middle of beak 1 .75 
Width of condyles 3 .20 
Closest approximation of condyles below the foramen magnum .22 
Height of foramen magnum 1 . 40 
"Width of foramen magnum 1 .50 
Entire length of ramus of lower jaw 11 .90 
Tip to posterior edge of last tooth in lower jaw 7 .00 
Length of symphysis 1 .50 
Height of ramus at coronoid process 2 .20 
Height of ramus 3.5 inches from tip of anterior end .GO 
"Width between outsides of articular surfaces 5 .20 
Width between posterior teeth 1 .70 
Length from tip of beak to superior transverse ridge behind frontals 11 .25 
Length from tip to anterior notch of inferior dental foramen 7 .70 
Greatest width of premaxillaries 2 .50 
Width of premaxillaries at middle of beak .90 
Teeth, |f, six in an inch, subcylindrical, conical, recurved at tip, sharply pointed. Coronoid 
process, slender, inconspicuous ; jaws thin and light. Anterior three teeth minute. Premaxillse 
separated widely by the mesethmoid cartilage, approximating more nearly at the middle of the 
beak, hard, rather flat in front. Beak rather flat, evenly shelving at the sides. Nasal triangle 
passing an inch before the hinder tooth, rough anteriorly, subcarinate in the middle behind, on 
the left side not reaching the nasals. Maxilla sharply turned up before the notch, evenly rounded 
off behind it. All the bones of the left side a little shorter behind, and the left nasal smaller 
and in advance of the right. Brain cavity larger on the left side. Septum and tentorium small 
and inconspicuous. Lateral keels of the pterygoids flattened. Vomer extended back as far as the 
2)osterior edge of the zygomatic process of the squamosals. Posterior ridge of the temporal fossa 
obsolete. Mesethmoid appearing between the maxillse for 1J inch in the middle of the beak, and 
succeeded by the preniaxillae, to the end of the beak. Palatines separated by a slight groove. 
Lateral notches of the pteiygoids, narrow, small. The portion of the basi- occipital gutter formed 
by the vomer and pteiygoids, narrower than the inferior nares. Palate flattened above, impressed 
before the palatines, with a tendency toward lateral grooves at the outer edges. Skull evidently of 
a young animal. 
Genus? Feresa, Gray. 
Feresa, Gray, P. Z. S. 1870, p. 77; 1871, p. 78. 
Feresa intermedia. 
Feresa intermedia, Gray, 1871, p. 78. 
Orca intermedia, Gray, 1866, p. 283 ; 1868, p. 8, pi. 8. 
Habitat ? 
Skull resembling Orca, but only 14 inches long; beak, 7 inches; width at notch, 4i inches. 
Teeth, |f Skull only, B. M. 
