300 APPENDIX. 



witli some hesitation, in ap^Dlj-ing a specific name to the animal described by Captain Scammou. 

 The following are the measurements, in inches and decimals : 



No. 1. No. 2. 



From end of beak to condyles 17 .50 17 .50 



From end of beak to posterior end of coronoid process 16 .40 16 .20 



From end of beak to posterior end of alveoli 9 -00 9 .50 



From end of beak to anterior end of dental foramen 9 .75 10 .00 



Height at coronoid process of ramus 5 .00 4 .60 



Height at inferior dental foramen 3 .50 3 .00 



Height at posterior end of symphysis 1 .45 1 .30 



Height of gonys 2 .00 1 .90? 



Length of symphysis 2 .00 2 .75 



Width behind posterior teeth 3 .00 2 .90 



AVidth at inferior dental foramen 7 .00 7 .20 



Width at coronoid process 10 .30 10 .00 



Width at inner corners of condyles 11 .20 11 .00 



Width at outer corners of condyles 14 .00 14 .00? 



Thickness of ramus behind posterior tooth .90 1 .00 



The ramus is quite thin and light behind ; the inferior dental foramen is large ; the coronoid 

 process almost evanescent. The alveoli are entirely filled with spongy bone behind the posterior 

 end of the symphysis. The jjosterior angle formed by the junction of the rami at the symphysis 

 is rather broadly rounded. The end of the beak is moderately pointed. The gonys is very short, 

 and produced in a rather sharp point below. No. 1 has three teeth on each side ; No. 2, four. 

 They are inclined forward and outward ; most of them are broken off or truncated. The teeth are 

 much the shape of an orange -seed: solid, and without any cavity in their proximal ends. The 

 crown, or portion covered with enamel (which, from the discoloration, seems to be the onlj' poi-tion 

 l^rojecting above the gums), is slightly, but distinctly, differentiated from the rest of the tooth, of 

 which less than one -half is inclosed in the alveolus. The crown is attenuated, slightly recurved, 

 and sharply jioiuted, which may account for the ease with which it becomes truncated. The 

 remainder of the tooth is irregularly subcjdindrical, transversely compressed, and pinched off at 

 the bottom. The dimensions are as follow: Length of crown, 0.52 inch; of whole tooth, 1.43 

 inch. Diameter at base of crown, 0.37 inch; transverse diameter of root, 0.5 inch; greatest 

 diameter of ditto, 0.6 inch. Length of the tooth line in No. 1, 2.25 inches; in No. 2, 2.5 inches. 

 Animal, 12 to 15 feet. The specimens were obtained at Monterey, California, by Captain Scam- 

 mon. 



Superfamily PHYSETEROIDEA, Gill, p. 96. 



Family Piiyseterid.'E, Gill, p. 96. 



Subfamily PiirsETERm^, Gill, p. 96. 



Genus Physeter, Linn. 



Physeter, Linn., S. N. i, p. 106 ; Gill, p. 96. 

 Catodon, Gray, 1866, p. 196 ; 1871, p. 58. 



