monotreme

Definitions of monotreme
1

n the most primitive mammals comprising the only extant members of the subclass Prototheria

Synonyms:
egg-laying mammal
Types:
anteater, echidna, spiny anteater
a burrowing monotreme mammal covered with spines and having a long snout and claws for hunting ants and termites; native to Australia
anteater, echidna, spiny anteater
a burrowing monotreme mammal covered with spines and having a long snout and claws for hunting ants and termites; native to New Guinea
Ornithorhynchus anatinus, duck-billed platypus, duckbill, duckbilled platypus, platypus
small densely furred aquatic monotreme of Australia and Tasmania having a broad bill and tail and webbed feet; only species in the family Ornithorhynchidae
Type of:
prototherian
primitive oviparous mammals found only in Australia and Tasmania and New Guinea

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