- lecithotrophic development
-
(BRYOZOA: Gymnolaemata)Production of brooding larvae lacking a digestive tract.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.
lecithotrophic development
Look at other dictionaries:
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
Marine larval ecology — is the study of the factors influencing the dispersing larval stage exhibited by many marine invertebrates and fishes. Marine organisms with a larval stage usually release large numbers of larvae into the water column, where these larvae develop… … Wikipedia
mollusk — molluskan, molluscan /meuh lus keuhn/, adj., n. mollusklike, adj. /mol euhsk/, n. any invertebrate of the phylum Mollusca, typically having a calcareous shell of one, two, or more pieces that wholly or partly enclose the soft, unsegmented body,… … Universalium
Egg (biology) — Bird eggs and others (click on image for key) … Wikipedia
Velvet worm — Taxobox name = Onychophora fossil range = Cambrian – Recent image width = 250px image caption = Velvet worm regnum = Animalia phylum = Onychophora phylum authority = Grube, 1853 subdivision ranks = Extant families subdivision = Peripatidae… … Wikipedia
Onychophora — Temporal range: 40–0 Ma … Wikipedia
Crustacean larvae — Larval and adult prawns Nauplius larva Adult Penaeus monodon … Wikipedia
Thorson's rule — (named after Gunnar Thorson by S. A. Mileikovsky in 1971)Mileikovsky, S. A. 1971. Types of larval development in marine bottom invertebrates, their distribution and ecological significance: a reevaluation. Marine Biology 19: 193 213] states that… … Wikipedia
Nemertea — For the Romanian village that bears this name, see Gura Teghii. Nemertea … Wikipedia
