lecithotrophic live bearer
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facultative lecithotrophic live bearer — a reproductive guild (q.v.) where eggs are sometimes fertilised internally by accident when gonopores of otherwise oviparous fish are close together. Eggs may be retained in the female and some early development occurs there (rarely beyond… … Dictionary of ichthyology
obligate lecithotrophic live bearer — a reproductive guild (q.v.) where eggs are fertilised internally and develop in the female until the end of the embryonic phase or later. There is no maternal foetal nutrient transfer (yolk provides food). There is some specialisation for… … Dictionary of ichthyology
