intercalarium

intercalarium
1) the third of the four Weberian ossicles, q.v., comprising an ascending process, an horizontal process where the interossicular ligaments attach connecting the scaphium, intercalarium and tripus), and a peg-like articular process with the second centrum
2) baseost (the distal radial or pterygiophore supporting the fin rays)

Dictionary of ichthyology. 2009.

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  • intercalarium — …   Useful english dictionary

  • incus Weberi — intercalarium …   Dictionary of ichthyology

  • baseost — the distal radial or pterygiophore supporting the fin rays. Also called intercalarium …   Dictionary of ichthyology

  • malleus Weberi — tripus (the fourth of the four Weberian ossicles, q.v., so named for its three processes. The anterior process joins it to the intercalarium by a ligament, the median process joins it to the third vertebral centrum and the third, posterior… …   Dictionary of ichthyology

  • os auditorium — (plural ossa auditoria)) one of the Weberian ossicles (the four bones in a chain derived from vertebrae in the Weberian apparatus forming the auditory unit or pars auditum (anterior to posterior): claustrum, scaphium, intercalarium and tripus) …   Dictionary of ichthyology

  • tripus — the fourth of the four Weberian ossicles, q.v., so named for its three processes. The anterior process joins it to the intercalarium by a ligament, the median process joins it to the third vertebral centrum and the third, posterior process… …   Dictionary of ichthyology

  • Weberian ossicles — the four bones in a chain derived from vertebrae in the Weberian apparatus forming the auditory unit or pars auditum (anterior to posterior): claustrum, scaphium, intercalarium and tripus. Also called ossa auditoria …   Dictionary of ichthyology

  • ostariophysan — ▪ fish Introduction  any of about8,000 species of bony fishes (bony fish) belonging to a group that includes the majority of freshwater fishes throughout the world. Familiar representatives of this group are the minnows (minnow), suckers (sucker) …   Universalium

  • tripus — noun /ˈtɹaɪpəs/ The hindmost Weberian ossicle of the Weberian apparatus, touching the anterior wall of the swimbladder and connected by a dense, elongate ligament to the intercalarium. Syn: bachelor of the stool, prævaricator, terræ filius,… …   Wiktionary

  • Mensis intercalaris — (lateinisch: mensis interkalaris für Schaltmonat; auch Mercedonius, Mercedonios, Mercedinus) war im römischen Kalender spätestens seit der ersten großen Kalenderreform um etwa 450 v. Chr. der 27 tägige Schaltmonat. Rechnerisch… …   Deutsch Wikipedia

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