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The Labyrinth of Two Species of Drumfish (Sciaenidae)

Hans Schneider
Copeia
Vol. 1962, No. 2 (Jul. 20, 1962), pp. 336-338
DOI: 10.2307/1440900
Stable URL: http://www.jstor.org/stable/1440900
Page Count: 3
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The Labyrinth of Two Species of Drumfish (Sciaenidae)
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Abstract

An anatomical study of the labyrinth of Aplodinotus grunniens and Micropogon furnieri revealed the basic pattern with some specific features: the hearing part is very large and contains a regularly shaped otolith bearing a typical structure. The extensive macula sacculi is enervated by a voluminous nerve. No open connection exists between the pars inferior and pars superior. A special process attaches the pars superior to the skull in Aplodinotus, while in Micropogon an apex only takes its place. Since sound production is common in both species, the development of the hearing part of the labyrinth leads to the conclusion that the animals may well be able to utilize their acoustic signals.

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