DELPHINID^ 43 



both sides of pectorals and flukes a greenish black ; a black patch 

 around the eye with a black streak passing forward above the 

 mouth, a continuous blade streak from the side of the under jaw- 

 to the anterior edge of the pectorals. Sides behind the eye gray, 

 the upper boudary of this color being somewhat above the plane 

 of that organ, beginning to curve downward just behind the dor- 

 sal fin, and meeting both black and white marks between the 

 vent and flukes, in or near the mesial line of the under side of the 

 lx)dy. A lanceolate white patch extending on the ventral side 

 from the middle of the jaw to the vent. A narrow white stripe 

 extending from, the corner of the mouth backward, on each side, 

 slightly arched above the pectoral and then curving downward 

 gradually, the two meeting below in the region oi the vent. An- 

 other, still narrower and somewhat obscure, starts at the same 

 place as the last, but is soon lost in the white ventral patch be- 

 fore alluded to. The Delphinus bairdii may be considered sym- 

 metrical in its proportions. It moves through the water with 

 great swiftness and grace. Appended are the dimensions in feet 

 and inches, of the examples above mentioned. 



Total length of the animals 6' — 7" 6' — g" 



Anterior edge of pectorals i' i' 



Expansion of flukes i' — 6" i' — 5" 



Height of dorsal fin 7" 7" 



Circumference before the dorsal fin . ., 3' — 4" 3' — 3" 



Genus Tursiops Gervais. (Dolphin like.) 

 Dorsal and pectoral fins long, narrow, curved; sides not 

 banded ; a distinct depression across head in front of forehead ; 

 rostrum moderately long, tapering; teeth 22 to 26, large, smooth; 

 vertebrae 61 to 64. 



Tursiops gilli Dall. (For Prof. T. N. Gill.) 



COWFISH. 



'Exterior known only from an outline drawing and record 



