[6]

[in margin:] p. 354 Os pharyngiens superieurs sur les inferieurs

Comptes Rendus Tom XLVI. 1858 p. 353.

Dr. Dufossé says in 2 sp. of Ophidium the ♂ alone have an apparatus fitted for producing sounds, consistng of the swim-bladder, which is provided with certain moveable bones & proper muscles - Ophidium belongs to the Acanthopterigians. Certain fish produce sounds by the friction of the upper & low pharyngeal bones.

[Des différents phénomènes physiologiques nommés voix des poissons. Comptes rendus hebdomadaires des séances de l'Académie des sciences 46: 352-356.]

 

Tom XLVII. 1858 p. 916. Certain other fishes voluntarily produce sounds by the vibration of certain muscles, which are united by connective tissue with their swim bladder & this latter serves as a responding apparatus - apparently not sexual

[De l'ichthyosophie (I), ou des différents phénomènes physiologiques nommés voix des poissons. Comptes rendus hebdomadaires des séances de l'Académie des sciences 47: 916.]

 

Tom LIV. 1862 p. 393 certain other fishes voluntarily produce sounds by the vibration of the intrinsic muscle of their swim bladder - Trigla this produces various sounds which comprise nearly an octave. - Trigla lucerna one of best - Speaks of these sounds as being pure & long-continued

[Sur les différents phénomènes physiologiques nommés voix des poissons, ou sur I'Ichthyopsophose. Comptes rendus hebdomadaires des séances de l'Académie des sciences 54: 393-395.]