Referring

  • 31chordal — referring to the notochord …

    Dictionary of ichthyology

  • 32cyclospondylous — referring to vertebra consisting of calcified rings around the notochord in Elasmobranchii and Holocephali. The calcification extends only to the chordacentrum or notochordal sheath, the arches are cartilaginous …

    Dictionary of ichthyology

  • 33diplospondylous — referring to the double vertebrae formed when the anterior and posterior elements (sclerotomes) have not fused, e.g. caudal vertebrae of Amia. Two types of centra are present, a precentrum lacking neural and haemal arches and a postcentrum having …

    Dictionary of ichthyology

  • 34dyssospondylous — referring to vertebrae in Amia, Lepisosteidae and Acipenseridae where the pleurocentrum, intercentrum, basidorsal, basiventral, interdorsal and interventral all ossify but remain independent in the embryonic and juvenile stages. Some elements… …

    Dictionary of ichthyology

  • 35epontic — referring to organisms closely associated with sea ice, attached, in interstices between ice crystals, or within channels in sea ice where some fish may be found …

    Dictionary of ichthyology

  • 36isospondylous — referring to fishes having vertebrae behind the skull similar in form to the rest. Contrasts with Ostariophysans which have the anterior vertebrae modified into a Weberian apparatus …

    Dictionary of ichthyology

  • 37lentic — referring to standing (or slow moving) waters in swamp, pond, or lake, as opposed to lotic or running waters …

    Dictionary of ichthyology

  • 38lotic — referring to running water as in rivers or streams, as opposed to lentic or still waters …

    Dictionary of ichthyology

  • 39monacmic — referring to an annual period of change in an aquatic population …

    Dictionary of ichthyology

  • 40pluvial — referring to a time period when precipitation is high and evaporation low, streamflow is strong and lake levels are high …

    Dictionary of ichthyology