cephalic lateral line
the head canals opening to the surface in pores and containing neuromasts (sometimes the canals are lost and the neuromasts are exposed). Similar to the trunk lateral line in structure and function but having different innervation. The following canals may be present: supratemporal (abbreviated ST) running across the top of the head connecting the lateral branch of each side; the opercular (OP), an isolated canal on the anterior operculum; supraorbital (SO) above the eye and extending anteriorly to the nostrils; infraorbital (IO) below the eye and above the upper lip; preoperculo-mandibular (PM) along the preopercle and lower jaw. The pores on the lower jaw are sometimes referred to separately as mandibular pores. Individual pores are sometimes referred to separately by the name of the structure to which they are adjacent:- nasal, postmaxillary, interorbital, etc. The coronal pore is the median dorsal pore (COR) between the eyes formed by junction of branches from each supraorbital canal

Dictionary of ichthyology. 2009.

Look at other dictionaries:

  • lateral line — a tube like sensory organ (usually bearing pores) extending along the side of the body from the rear of the head to the tail. Detects water movements, low frequency vibrations (lower than 160 200 Hz) and perhaps temperature changes. In some… …   Dictionary of ichthyology

  • cephalic spongy sensory area — the area above and behind the eye penetrated by numerous branches and pores of the cephalic lateral line system. Known in Brevoortia (Clupeidae) …   Dictionary of ichthyology

  • lateral canal — the horizontal part of the cephalic lateral line system behind the eye …   Dictionary of ichthyology

  • cephalic sensory canals — the head canals opening to the surface in pores and containing neuromasts (sometimes the canals are lost and the neuromasts are exposed). Similar to the trunk lateral line in structure and function but having different innervation. The following… …   Dictionary of ichthyology

  • lateralis system — the lateral line and cephalic lateral line systems, q.v. Lateralis may refer just to the canal on the flank …   Dictionary of ichthyology

  • postocular canal — the cephalic lateral line canal connecting the interorbital canal with the body lateral line canal, e.g. in Tripterygidae …   Dictionary of ichthyology

  • occipital canal — supratemporal canal (the cephalic lateral line canal (q.v.) running across the top of the head joining the lateral canals. Abbreviated ST) …   Dictionary of ichthyology

  • supratemporal canal — the cephalic lateral line canal (q.v.) running across the top of the head joining the lateral canals. Abbreviated ST …   Dictionary of ichthyology

  • transverse canal — supratemporal canal (the cephalic lateral line canal (q.v.) running across the top of the head joining the lateral canals. Abbreviated ST) …   Dictionary of ichthyology

  • coronal pore — the dorsal median pore of the cephalic lateral line system (q.v.) at the point of juncture of the branches from each supraorbital canal. Abbreviated COR …   Dictionary of ichthyology

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