median ridge 



baleen or 

 'whalebone" 



throat 



grooves 



dorsal Hn 



pectoral fin (flipper) 



median 

 notch 



beak 



mout 



dorsal fm 



pectoral fin (flipper) 



URO-GENITAL SLIT(S) 



6 

 9 



mammary slits 



sli 



.1 

 genital slit 



anus 



Figure II-5. A humpback uhale top;) and a bottlenose dolphin showing major bod\- parts referred to m the text. The lower diagram she 

 how to distinguish males from females. After L. Foster in Leatherwood 1982. 



63 



