186 BULLETIN 36, UNITED STATES NATIONAL MUSEUM. 



GLOBICEPHALUS SIEBOLDII Gray. 

 (P]ate43, figs. 1 and .2.) 



KuowD only from a young individual. 



Form and color as in G. hrachypterus. Pectoral fins broad in tlie distal 

 half, with irregular sinuate margins. 

 Teeth J°. Vomer bifurcated at the extremity. 

 See page 142. 

 Habitat — Japan . 



GLOBICEPHALUS INDICUS Blyth. 



See page 137. 

 Habitat. — India. 



GLOBICEPHALUS MACRORHYNCHUS Gray. 



See page 13S. 

 Habitat. — South Seas. 



16. PSEUDORCA Reinhardt. 



Rostrum short and broad. Rostral portion of the intermaxilljB broad, 

 equal to or exceeding the breadth of the proximal end ; abruptly 

 truncated at the distal end. Pterygoid bones short, nearly or quite in 

 contact in the median line. Palatine bones i)rolonged laterally across 

 the optic canal. Teeth few and large, with conical roots, 10. Verte- 

 bra^, 50. 



Head globose, depressed ; beak wanting. Dorsal and jiectoral fins 

 rather small, narrow, and falcate. Color uniform black. 



PSEUDORCA CRASSIDENS (Owen). 

 (Plate 44, figs. 1 and 2.) 



Size large. Body elongate. Head sloping gradually and gently 

 from the blowhole to the extremity; no appearance of a beak. Dorsal 

 fin in the middle of the length, narrow and upright, not higher (along 

 the center) than the length of the pectoral fin. Pectoral fin small, 

 one-third as broad as long; its length contained eight to nine times 

 in the total length of the body. 



Color uniform black. 



Teeth f^,. Vertebrae: C. 7; D. 10; L. 9; Ca. 24=50. 



Skull massive. Rostrum long and broad; its length about one-half 

 the total length of the skull ; its breadth at the baso about two-thirds 

 its length. Intermaxilhe broad and flat, not expanded proximally; 

 their outer margins on opposite sides forming approximately parallel 

 lines. Vomer extending forward to the junction of the distal and 

 second thirds of the rostrum, not visible on the palate. Intermaxilhe 

 extending back on the palate, nearly to the middle of the rostrum. 



