preanal membrane
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morphometric character — a measurement of a body part, e.g. head length; a character based on measurement. In fish, measurements are taken on a straight line basis, not around the curve of the body with the exception of such measurements specifically intended to measure… … Dictionary of ichthyology
annelid — /an l id/, n. 1. any segmented worm of the phylum Annelida, including the earthworms, leeches, and various marine forms. adj. 2. belonging or pertaining to the Annelida. Also, annelidan /euh nel i dn/. [1825 35; see ANNELIDA] * * * Any member of… … Universalium
