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Definitions for
"Monotremata"
Keywords:
subclass
,
coextensive
,
prototheria
,
echidna
,
cloaca
A subclass of Mammalia, having a cloaca in which the ducts of the urinary, genital, and alimentary systems terminate, as in birds. The female lays eggs like a bird. See Duck mole, under Duck, and Echidna.
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coextensive with the subclass Prototheria
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