Body to 2.5 m long. 



Body strikingly black with well defined white flank/belly patches; 



gray-white to white also present on dorsal fin near margin of 



flukes. 

 Dorsal fin small, nearly triangular, and tipped with white. 

 Very robust body; not streamlined m appearance; head small with 



very indistinct beak. 

 Usually very vigorous and fast swimmer; active bow-rider. 

 Distribution subarctic (Pribilof Islands) to cold temperate (central 



Baja California). 



Body to nearly 2 m long. 



Body dark brown to black above and white below; transition zone 



on sides often speckled or streaked; ventral white extends high 



onto side anterior to dorsal fin. 

 Head rounded; beak small and indistinct. 

 Dorsal fin short and triangular. 

 Distribution in shallow waters from at least Morro Bav north; 



generally found inshore; often in bays, river mouths and inlets. 

 Shy. Usually does not approach boats or bowride. 



Dall's Porpoise 



Phccoenoidis dalli (A) 



H.OlRbor Porpoise 



Phccoina phocoena (B) 



As nearly as is known: 



Body to nearly 2 m long. 



Body dark brown above and white below; transition zone on sides 



often speckled or streaked; ventral extends high onto side in 



front of dorsal fin. 

 Face marked with black around eye and mouth. 

 Head rounded; beak small and indistinct. 

 Dorsal fin simalar in height and general apperaence to that of 



bottlenose dolphins. 

 Distribution apparently restricted to uppet quarter of Gulf of 



California, primarily in Colorado River Delta and shallow 



coastal margins. 



CoCHITO 

 Phocoena anus (T) 



Without a Dorsal Fin 



There is onl\' one small cetace.in in the area co\ered hv this ^uide which has no dorsal Hn. 



Body to at least j m long. 



Body black or browinsh-black; belly has white hourglass pattern. 



Body long and slender; tailstock very slender. 



Flukes small, with light zone near tips, top and bottom. 



Distribution temperate (5o°E to 50°N) primarily offshore. 



48 



RjGHT-WHALE DOLPHIN 

 Lissodelphis horealis {_A) 



