Pertaining to the membrane covering the gills of fishes; this term was formerly applied to a group of fishes having boneless branchi[ae], but the arrangement was artificial and has been rejected.

Fisheries — dictionary. . 2004.

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  • Branchiostegal — Bran chi*os te*gal, a. [Gr. ? gill + ? to cover: cf. F. branchiost[ e]ge.] (Anat.) Pertaining to the membrane covering the gills of fishes. n. (Anat.) A branchiostegal ray. See Illustration of {Branchial arches} in Appendix. [1913 Webster] Note:… …   The Collaborative International Dictionary of English

  • branchiostegal — one of the dermal bony (or cartilaginous) struts inserting on the epihyal and/or ceratohyal and sometimes the interhyal and hypohyal, and supporting the branchiostegal membranes. Of various forms from narrow, to plate like to hooked, with numbers …   Dictionary of ichthyology

  • branchiostegal — I. |braŋkē|ästə̇gəl adjective Etymology: International Scientific Vocabulary branchi + steg + al : of or relating to the branchiostegals the branchiostegal membrane II. noun or branchiostegal ray …   Useful english dictionary

  • branchiostegal — /brang kee os ti geuhl/, Ichthyol. n. 1. Also called branchiostegal ray. one of the long, curved bones just below the operculum, supporting the gill membranes. adj. 2. of or pertaining to the branchiostegals. [1740 50; BRANCHIO + STEG(O) + AL1] * …   Universalium

  • branchiostegal ray — branchiostegal is preferred …   Dictionary of ichthyology

  • branchiostegal spine — See: carapace spine (b) [Martin, 2005]. See: carapace spines (b) [McLaughlin, 1980]. A short spine located on or near the anterior margin of the carapace, ventral to the antennal spine in the shrimps; in crayfishes, immediately ventral to the… …   Crustacea glossary

  • branchiostegal membrane — the membrane below the operculum, often attached to the isthmus, supported by branchiostegals and helping to enclose the gill chamber ventrolaterally. Branchiostegal membranes are separate when the membranes of the two sides are separate from one …   Dictionary of ichthyology

  • branchiostegal carina — Longitudinal ridge extending along anteroventral part of carapace, usually continuous with branchiostegal spine [Perez Farfante and Kensley, 1997] …   Crustacea glossary

  • branchiostegal sulcus — Groove often accompanying branchiostegal carina, located on the anteroventral part of the carapace [Perez Farfante and Kensley, 1997] …   Crustacea glossary

  • branchiostegal-hepatic carina — Longitudinal ridge consisting of the fusion of the branchiostegal and hepatic carinae [Perez Farfante and Kensley, 1997] …   Crustacea glossary

  • branchiostegal ray — noun see branchiostegal II …   Useful english dictionary

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