Here you will find one or more explanations in English for the word Placoid.
Also in the bottom left of the page several parts of wikipedia pages related to the word Placoid and, of course, Placoid synonyms and on the right images related to the word Placoid.
Placoid
Placoid Plac"oid, a. [Gr. ?, ?, a tablet + -oid.] (Zo["o]l.)
Platelike; having irregular, platelike, bony scales, often
bearing spines; pertaining to the placoids.
Placoid
Placoid Plac"oid, n. (Zo["o]l.)
(a) Any fish having placoid scales, as the sharks.
(b) One of the Placoides.
Meaning of Placoid from wikipedia
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sturgeons and gars.
Cartilaginous fishes (sharks and rays) are
covered with
placoid scales. Some
species are
covered instead by scutes, and
others have no...
-
Chondrichthyes are
aquatic vertebrates with
paired fins,
paired nares,
placoid scales,
conus arteriosus in the heart, and a lack of
opecula and swim bladders...
-
Acute posterior multifocal placoid pigment epitheliopathy (APMPPE) is an
acquired inflammatory uveitis that
belongs to the
heterogenous group of white...
- of animals.
Ganoid scales on a
carboniferous fish
Amblypterus striatus Placoid scales on a
lemon shark (Negaprion brevirostris)
Cycloid scales on a common...
-
dorsoventrally compressed. The
entire body is
covered by an
exoskeleton of
placoid scales. The
mouth is
located on the
ventral side and is
bound on both sides...
-
water as they
reduce high-velocity flow. The
larger the fish, the more
placoid scales they are
likely to have.
These projections are
extremely teeth-like...
-
classically recognized white dot
syndromes include:
Acute posterior multifocal placoid pigment epitheliopathy Birdshot chorioretinopathy Multiple evanescent white...
- jaw to have high
mobility and
protrude outward. The
teeth are
modified placoid scales that are
regularly shed and replaced. In general, the
teeth have...
- the
teeth of dinosaurs, lizards, sharks, and
mammals Dermal denticles or
placoid scales, in
cartilaginous fishes Pulp
stone or endolith, a
calcified m****...
-
clefts opening individually to the exterior,
rigid dorsal fins and
small placoid scales on the skin. The
teeth are in
several series; the
upper jaw is not...
