Ctenoid - définition. Qu'est-ce que Ctenoid
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Qu'est-ce (qui) est Ctenoid - définition


ctenoid         
  • 180px
  • 220px
  • 150px
  • The scales of a typical teleost fish, like this [[Atlantic herring]], are silvered.
  • Barnacle growth on boat hull
  • Queensland lungfish}}
  • Effects of turbulent flow on boundary layer
  • 300px
  • 100px
  • [[Lobe-finned fish]]es, like this preserved [[coelacanth]], have elasmoid scales.}}
  • url =https://books.google.com/books?id=-4keAAAAIAAJ&q=Eleotris%20butis&pg=PA306}}</ref>
  • Ctenoid scales from a [[perch]] vary from the medial (middle of the fish), to dorsal (top), to caudal (tail end) scales.
  • Placoid scales as viewed through an electron microscope. Also called dermal denticles, these are structurally homologous with vertebrate teeth.
  • Dorsal view of right-bending (left) and left-bending (right) jaw morphs adapted for eating fish scales<ref name=Lee2012 />
  • [[Pineconefish]] are covered in scutes.}}
  • 180px
  • 200px
  • The herring's reflectors are nearly vertical for camouflage from the side.
  • The deep sea hatchetfish has scales which reflect blue light.
  • Mineral texture of ganoine layers in the scales of an [[alligator gar]]
  • 60px
  • Geometrically laid out ganoid scales on a [[bichir]]
  • Diagram of the side profile of a shark denticle showing a vortex in the wake downstream of the denticle
  • The scales of this [[spotted gar]] appear glassy due to ganoine.
  • Left to right: denticles of ''[[Paralogania]]'' (?), ''[[Shielia]] taiti'', ''[[Lanarkia]] horrida''
  • Cartilaginous fishes, like this [[tiger shark]], have placoid scales (dermal denticles).}}
SMALL RIGID PLATE THAT GROWS OUT OF THE SKIN OF A FISH
Dermal denticle; Placoid scale; Ctenoid; Cteniod; Ganoid; Ctenoid Scales:; Cycloid scale; Placoid scales; Cteniform; Ctenoid scale; Dermal denticles; Cosmoid scale; Ganoid scale; Elasmoid scale; Leptoid scale; Cosmoid scales; Placoid; Fish scales; Dermal teeth; Cycloid scales; Fish Scale; Scales on a fish
['ti:n??d]
¦ adjective Zoology (of fish scales) having many tiny projections on the edge like the teeth of a comb, as in many bony fishes. Compare with ganoid and placoid.
Origin
C19: from Gk kteis, kten- 'comb' + -oid.
Ctenoid         
  • 180px
  • 220px
  • 150px
  • The scales of a typical teleost fish, like this [[Atlantic herring]], are silvered.
  • Barnacle growth on boat hull
  • Queensland lungfish}}
  • Effects of turbulent flow on boundary layer
  • 300px
  • 100px
  • [[Lobe-finned fish]]es, like this preserved [[coelacanth]], have elasmoid scales.}}
  • url =https://books.google.com/books?id=-4keAAAAIAAJ&q=Eleotris%20butis&pg=PA306}}</ref>
  • Ctenoid scales from a [[perch]] vary from the medial (middle of the fish), to dorsal (top), to caudal (tail end) scales.
  • Placoid scales as viewed through an electron microscope. Also called dermal denticles, these are structurally homologous with vertebrate teeth.
  • Dorsal view of right-bending (left) and left-bending (right) jaw morphs adapted for eating fish scales<ref name=Lee2012 />
  • [[Pineconefish]] are covered in scutes.}}
  • 180px
  • 200px
  • The herring's reflectors are nearly vertical for camouflage from the side.
  • The deep sea hatchetfish has scales which reflect blue light.
  • Mineral texture of ganoine layers in the scales of an [[alligator gar]]
  • 60px
  • Geometrically laid out ganoid scales on a [[bichir]]
  • Diagram of the side profile of a shark denticle showing a vortex in the wake downstream of the denticle
  • The scales of this [[spotted gar]] appear glassy due to ganoine.
  • Left to right: denticles of ''[[Paralogania]]'' (?), ''[[Shielia]] taiti'', ''[[Lanarkia]] horrida''
  • Cartilaginous fishes, like this [[tiger shark]], have placoid scales (dermal denticles).}}
SMALL RIGID PLATE THAT GROWS OUT OF THE SKIN OF A FISH
Dermal denticle; Placoid scale; Ctenoid; Cteniod; Ganoid; Ctenoid Scales:; Cycloid scale; Placoid scales; Cteniform; Ctenoid scale; Dermal denticles; Cosmoid scale; Ganoid scale; Elasmoid scale; Leptoid scale; Cosmoid scales; Placoid; Fish scales; Dermal teeth; Cycloid scales; Fish Scale; Scales on a fish
·adj Pertaining to the Ctenoidei.
II. Ctenoid ·noun A Ctenoidean.
III. Ctenoid ·adj Having a comblike margin, as a ctenoid scale.
Ganoid         
  • 180px
  • 220px
  • 150px
  • The scales of a typical teleost fish, like this [[Atlantic herring]], are silvered.
  • Barnacle growth on boat hull
  • Queensland lungfish}}
  • Effects of turbulent flow on boundary layer
  • 300px
  • 100px
  • [[Lobe-finned fish]]es, like this preserved [[coelacanth]], have elasmoid scales.}}
  • url =https://books.google.com/books?id=-4keAAAAIAAJ&q=Eleotris%20butis&pg=PA306}}</ref>
  • Ctenoid scales from a [[perch]] vary from the medial (middle of the fish), to dorsal (top), to caudal (tail end) scales.
  • Placoid scales as viewed through an electron microscope. Also called dermal denticles, these are structurally homologous with vertebrate teeth.
  • Dorsal view of right-bending (left) and left-bending (right) jaw morphs adapted for eating fish scales<ref name=Lee2012 />
  • [[Pineconefish]] are covered in scutes.}}
  • 180px
  • 200px
  • The herring's reflectors are nearly vertical for camouflage from the side.
  • The deep sea hatchetfish has scales which reflect blue light.
  • Mineral texture of ganoine layers in the scales of an [[alligator gar]]
  • 60px
  • Geometrically laid out ganoid scales on a [[bichir]]
  • Diagram of the side profile of a shark denticle showing a vortex in the wake downstream of the denticle
  • The scales of this [[spotted gar]] appear glassy due to ganoine.
  • Left to right: denticles of ''[[Paralogania]]'' (?), ''[[Shielia]] taiti'', ''[[Lanarkia]] horrida''
  • Cartilaginous fishes, like this [[tiger shark]], have placoid scales (dermal denticles).}}
SMALL RIGID PLATE THAT GROWS OUT OF THE SKIN OF A FISH
Dermal denticle; Placoid scale; Ctenoid; Cteniod; Ganoid; Ctenoid Scales:; Cycloid scale; Placoid scales; Cteniform; Ctenoid scale; Dermal denticles; Cosmoid scale; Ganoid scale; Elasmoid scale; Leptoid scale; Cosmoid scales; Placoid; Fish scales; Dermal teeth; Cycloid scales; Fish Scale; Scales on a fish
·adj Of or pertaining to Ganoidei.
- ·noun One of the Ganoidei.
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