1. Monotremes
Dan Adams

2. Classification Kingdom: Animalia Phylum: Chordata Class: Mammalia
Subclass: Prototheria
Order: Montremata
Families:
Ornithorhynchidae (Platypuses)
Tachyglossidae (Echidnas)
Short-beaked Echidna (Tachyglossus aculeatus)

3. Monotremata Characteristics
Lay eggs
Produce milk from mammary glands
No nipples
Bird-like skull
No teeth
Splayed pectoral girdle like reptiles
Mammal-like pelvic girdle
Cloaca

4. Species Genus Ornithorhynchus Genus Tachyglossus Genus Zaglossus
Platypus, Ornithorynchus anatinus
Genus Tachyglossus
Short-beaked echidna, Tachyglossus aculeatus
Genus Zaglossus
Sir David's long-beaked echidna, Zaglossus attenboroughi
Eastern long-beaked echidna, Zaglossus bartoni
Western long-beaked echidna, Zaglossus bruijni
(Above)

5. Echidna Distribution = Short-beaked echidna
= Sir David’s long-beaked echidna
= Eastern long-beaked echidna
= Western long-beaked echidna

6. Platypus Distribution

7. Platypus Habitat: Australian freshwater lakes & streams
Live in burrows
Diet: Insects, crustaceans, frogs, fish
Reproduction: Sexually mature at 4 years
Gestation: 1-3 eggs are laid & gestate for 21 days

8. The Venomous Mammal

9. Echidnas Habitat: Wide range from forests to deserts
Diet: Small insects such as ants & termites
Similar to the porcupine of North America
Covered in sharp spines as defense mechanism

10. Questions?