Dichotomous Key/Sirenia
Appearance
Sirenia | |
---|---|
Kingdom | Animalia |
Phylum | Chordata |
Subphylum | Vertebrata |
Class | Mammalia |
Subclass | Placentalia |
Order | Sirenia |
Information related to Sirenia Wikipedia • Wikispecies • Wikicommons | |
Parent key: Mammalia |
Subclasses |
---|
Marsupialia - Monotremata - Placentalia |
Key: Mammalia |
Orders |
Afrosoricida - Artiodactyla - Carnivora - Cetacea - Chiroptera - Dermoptera - Insectivora - Lagomorpha - Macroselidae - Marsupialia - Monotremata - Perissodactyla - Pholidota - Primates - Proboscidea - Rodentia - Scandentia - Sirenia - Xenarthra |
1: Shape of tail
- Tail shape
- Forked - Dugong dugon
- Paddle-shaped - #2: Trichechidae
2: Trichechidae
- Fingernails
- No nails on forelimbs - Amazonian Manatee, Trichechus inunguis
- Nails on forelimbs - #3: Geographic Location
3: Geographic Location
- Rivers, estuaries, or coastal waters in the
- Western Atlantic - Trichechus manatus
- Eastern Atlantic - Trichechus senegalensis