atriopore
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atriopore — the opening near the anus which leads from the atrium to the exterior in Amphioxi. Also called atrial pore … Dictionary of ichthyology
atriopore — atri·o·pore … English syllables
atriopore — ˈā.trēəˌpō(ə)r noun ( s) Etymology: atri + pore zoology : the opening of an atrium : an atrial pore (as in amphioxus) … Useful english dictionary
cephalochordate — /sef euh loh kawr dayt/, adj. 1. belonging or pertaining to the Cephalochordata. n. 2. any chordate animal of the subphylum Cephalochordata, having fishlike characters but lacking a spinal column, comprising the lancelets. [ < NL Cephalochordata; … Universalium
Chordate — Chordata Temporal range: Early Cambrian – Recent, 540–0 Ma … Wikipedia
Lancelet — Lancelets Lancelet (Branchiostoma lanceolatum) Scientific classification Kingdom: Animalia … Wikipedia
Pharyngeal slit — Pharyngeal slits, characteristic of both hemichordata and chordata, are used by organisms in feeding. The wall of the pharynx is perforated by up to 200 vertical slits, which are separated by stiffening rods.Rows of beating cilia cause currents… … Wikipedia
Acrania — Cephalochordata Céphalocordés … Wikipédia en Français
Amphiocus — Cephalochordata Céphalocordés … Wikipédia en Français
Amphioxus — Cephalochordata Céphalocordés … Wikipédia en Français
