opercular opening


opercular opening
gill opening

Dictionary of ichthyology. 2009.

Look at other dictionaries:

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  • Longjaw mudsucker — Taxobox | name = Longjaw mudsucker regnum = Animalia phylum = Chordata classis = Actinopterygii ordo = Perciformes familia = Gobiidae genus = Gillichthys species = G. mirabilis binomial = Gillichthys mirabilis binomial authority = Cooper, 1864The …   Wikipedia

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  • orifice — Opening in sessile barnacle wall occupied by operculum. See: aperture [McLaughlin, 1980]. Opening in upper part of cirriped shell containing opercular valves [Moore and McCormick, 1969]. (Subclass Cirripedia): Aperture [Stachowitsch, 1992] …   Crustacea glossary

  • operculum — opercular, adj. /oh perr kyeuh leuhm/, n., pl. opercula / leuh/, operculums. 1. Bot., Zool. a part or organ serving as a lid or cover, as a covering flap on a seed vessel. 2. Zool. a. the gill cover of fishes and amphibians. See diag. under fish …   Universalium

  • fish — fishless, adj. /fish/, n., pl. (esp. collectively) fish, (esp. referring to two or more kinds or species) fishes, v. n. 1. any of various cold blooded, aquatic vertebrates, having gills, commonly fins, and typically an elongated body covered with …   Universalium

  • Fish — /fish/, n. Hamilton, 1808 93, U.S. statesman: secretary of state 1869 77. * * * I Any of more than 24,000 species of cold blooded vertebrates found worldwide in fresh and salt water. Living species range from the primitive lampreys and hagfishes… …   Universalium

  • part — A portion. SYN: pars [TA]. abdominal p. of aorta SYN: abdominal aorta. abdominal p. of esophagus [TA] the portion of the esophagus from where it passes through the diaphragm to the stomach. See …   Medical dictionary

  • Ichthyology terms — Ichthyology uses several terms that are unique to the science.Contents: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z NOTOC A * Abdomen: belly * Abdominal: pertaining to the belly * Actinosts: a series of bones at the base of the pectoral… …   Wikipedia


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