branchial opening


branchial opening
the opening from the gill area to the exterior, the gill opening or slit

Dictionary of ichthyology. 2009.

Look at other dictionaries:

  • Branchial clefts — Cleft Cleft, n. [OE. clift; cf. Sw. klyft cave, den, Icel. kluft cleft, Dan. kl[ o]ft, G. kluft. See {Cleave} to split and cf. 2d {Clift}, 1st {Clough}.] 1. A space or opening made by splitting; a crack; a crevice; as, the cleft of a rock. Is. ii …   The Collaborative International Dictionary of English

  • branchial carina — (ARTHROPODA: Crustacea) In Decapoda, that part of the carapace extending posteriorly from the opening (orbit) in the anterior face over the branchial region …   Dictionary of invertebrate zoology

  • branchial aperture — The exterior opening of a gill chamber …   Dictionary of invertebrate zoology

  • gill opening — an external opening leading from the gill chamber. Also called gill slit or branchial opening. Elasmobranchii have 5 7 openings or slits on each side of the head while bony fishes have only one. The opening allows water to exit after passing over …   Dictionary of ichthyology

  • Gill opening — Gill Gill (g[i^]l), n. [Dan. gi[ae]lle, gelle; akin to Sw. g[ a]l, Icel. gj[ o]lnar gills; cf. AS. geagl, geahl, jaw.] 1. (Anat.) An organ for aquatic respiration; a branchia. [1913 Webster] Fishes perform respiration under water by the gills.… …   The Collaborative International Dictionary of English

  • afferent branchial channel(s) — Pair of channels between ridges, supplying water to branchial cavity and opening in front of chelipeds or alongside epistome (some Brachyura) [Poore, 2004] …   Crustacea glossary

  • efferent branchial channels — Pair of channels between ridges, venting branchial cavity and opening lateral to endostome (some Brachyura) [Poore, 2004] …   Crustacea glossary

  • Balanoglossus — Taxobox name = Balanoglossus regnum = Animalia phylum = Hemichordata classis = Enteropneusta familia = Ptychoderidae genus = Balanoglossus genus authority = Delle Chiaje, 1829 subdivision ranks = Species subdivision = See text. Balanoglossus is… …   Wikipedia

  • circulation — circulable /serr kyeuh leuh beuhl/, adj. /serr kyeuh lay sheuhn/, n. 1. an act or instance of circulating, moving in a circle or circuit, or flowing. 2. the continuous movement of blood through the heart and blood vessels, which is maintained… …   Universalium

  • muscle — muscleless, adj. muscly, adj. /mus euhl/, n., v., muscled, muscling, adj. n. 1. a tissue composed of cells or fibers, the contraction of which produces movement in the body. 2. an organ, composed of muscle tissue, that contracts to produce a… …   Universalium


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