- hydrotroph
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a uterine "milk" secreted by the trophonemata (villi-like structures) in Rajiformes
Dictionary of ichthyology. 2009.
hydrotroph
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trophonema — (plural trophonemata)) a long filament from the uterus which secretes a nutritive fluid, hydrotroph, which is absorbed by the embryo s yolk sac or taken in through the mouth or spiracles. Found in Rajiformes … Dictionary of ichthyology
