Model
Digital Document
Publisher
Florida Atlantic University
Description
The sound producing mechanisms of Chilara taylori (Girard)
and Ophidion grayi (Fowler) are sexually dimorphic. These
mechanisms involve the airbladder, a modified anterior axial
skeleton and three pairs of muscles; all have an enlarged
first vertebra and a pair of similarly modified and enlarged
first ribs. In the male Chilara taylori, two thin convex
bones are embedded in the anterior face of the airbladder.
Slits are present in the lateral wall of the airbladder just
behind the embedded bones. The male Ophidion grayi has a
very rigid airbladder. Highly modified third ribs shaped like
inverted ram's horns are embedded in the airbladder wall.
These ribs encircle a membranous area in the anterior of the
airbladder in which a median rocker bone is embedded. The
sound producing mechanisms of the females of both species lack
specialized bones associated with the airbladder. Their
sound producing mechanisms are not as well developed as in
the male.
and Ophidion grayi (Fowler) are sexually dimorphic. These
mechanisms involve the airbladder, a modified anterior axial
skeleton and three pairs of muscles; all have an enlarged
first vertebra and a pair of similarly modified and enlarged
first ribs. In the male Chilara taylori, two thin convex
bones are embedded in the anterior face of the airbladder.
Slits are present in the lateral wall of the airbladder just
behind the embedded bones. The male Ophidion grayi has a
very rigid airbladder. Highly modified third ribs shaped like
inverted ram's horns are embedded in the airbladder wall.
These ribs encircle a membranous area in the anterior of the
airbladder in which a median rocker bone is embedded. The
sound producing mechanisms of the females of both species lack
specialized bones associated with the airbladder. Their
sound producing mechanisms are not as well developed as in
the male.
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