crista quarta
macula neglecta (a sensory structure located in Teleostomi in the utriculus of the inner ear near the opening of the ampulla of the posterior vertical semicircular canal, in selachians within a duct (posterior canal duct) through which the posterior vertical semicircular canal connects with the sacculus, while in the batoids it lies in the wall of the sacculus adjacent to the opening of the duct. It may have a neuromast associated with its sensory tissue. This structure has been demonstrated to be a sensitive vibration receptor in Raja. Also called crista neglecta or papilla neglecta

Dictionary of ichthyology. 2009.

Look at other dictionaries:

  • crista neglecta — macula neglecta or crista quarta, q.v …   Dictionary of ichthyology

  • crista — SYN: crest. [L. crest] c. ampullaris [TA] SYN: ampullary crest. c. ampullaris (ductuum semicircularium) [TA] SYN: ampullary crest (of semicircular ducts). c. arcuata cartilaginis arytenoideae [TA] SYN: arcuate crest of arytenoid cartilage. c.… …   Medical dictionary

  • macula neglecta — a sensory structure located in Teleostomi in the utriculus of the inner ear near the opening of the ampulla of the posterior vertical semicircular canal, in selachians within a duct (posterior canal duct) through which the posterior vertical… …   Dictionary of ichthyology

  • papilla neglecta — macula neglecta (macula neglecta a sensory structure located in Teleostomi in the utriculus of the inner ear near the opening of the ampulla of the posterior vertical semicircular canal, in selachians within a duct (posterior canal duct) through… …   Dictionary of ichthyology

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