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Gill slits are
individual openings to
gills, i.e.,
multiple gill arches,
which lack a
single outer cover. Such
gills are
characteristic of cartilaginous...
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vertebrates typically develop in the
walls of the pharynx,
along a
series of
gill slits opening to the exterior. Most
species employ a counter-current exchange...
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pharyngeal slits. It is
postulated that this is how
pharyngeal slits first ****isted in filter-feeding, and later, with the
addition of
gills along their...
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delicate gills. A
smaller opening, the spiracle, lies in the back of the
first gill slit. This
bears a
small pseudobranch that
resembles a
gill in structure...
- slot-like body
openings called gill slits that lead from the
gills, but the
Hexatrygonidae have six.
Batoid gill slits lie
under the
pectoral fins on...
- to the environment,
rather than set
inside the
pharynx and
covered by
gill slits, as they are in most fishes. Instead, the
respiratory organs are set on...
-
through a
series of
gill slits that
perforate the body wall.
Without the
operculum bone,
other methods of
getting water to the
gills are required, such...
-
potentially damaging p****age of
solid material through the
gill slits and over the
gill filaments,
early gill rakers strained large particles from the
water and...
-
elasmobranch fish
characterized by a
cartilaginous skeleton, five to
seven gill slits on the
sides of the head, and
pectoral fins that are not
fused to the...
-
about twice the head length. In general,
three external gills are
inserted posterior to the
gill slits and
above the
pectoral fins. It has
cycloid scales embedded...