Dichotomous Key/Cetacea

1

 * Teeth present
 * No, has baleen plates -
 * Yes -

2: Mysticeti

 * Series of longitudinal folds of skin running from below the mouth back to the navel
 * Present -
 * Not present -

3

 * Gumline
 * White - Caperea marginata
 * Other color -

4: Balaenopteridae

 * Hump on back
 * Present - Humpback whale, Megaptera novaeangliae
 * Not present - ../Balaenoptera/

5

 * Callositities
 * Numerous - ../Eubalaena/
 * Few - Eschrichtius robustus