Rostral organ

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The rostral organ of the coelacanth is a large gel-filled cavity in the snout, with three pairs of canals to the outside.[citation needed]

It is surrounded by an insulating layer of adipose tissue and innervated by the superficial ophthalmic nerve. Its anatomy and innervation suggest it is an electroreceptive organ[1] used for finding prey in the dark. This is supported by experiments which showed that coelacanths react to electrical fields produced by a submersible.[citation needed]


  1. ^ Bemis, William E.; Hetherington, Thomas E. (1982). "The Rostal Organ of Latimeria chalumnae: Morphological Evidence of an Electroreceptive Function". Copeia 1982 (2): 467–71. JSTOR 1444635.