56 



Figure 28. Some cetacean terms used in the key with a shark 

 for comparison. 



RNS 



GILL SLITS 



SHARK 



TAIL FIN VERT1CAL 



ANAL FIN 



2 PAIRS VENTRAL FIMS 



DORSAL FIN 



ANOUTH SLI 



CETACEAN 



I PAIR FLIPPERS 



UMBILICUS 

 (SCAFV) 



NOTCH IN FLUKES; 

 FLUKE.S HORIZONTAL 



GENITAL AREA 



