What is the division of Vertebrata in which no allantois is developed. It includes amphibians, fishes, and lower forms called?
anallantoidea — The division of Vertebrata in which no allantois is developed. It includes amphibians, fishes, and lower forms. (Webster's 1913.)
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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