WebAs adjectives the difference between placoid and ctenoid is that placoid is platelike; having irregular, platelike, bony scales, often bearing spines; pertaining to the placoids while … Webcycloid ctenoid As nouns the difference between cycloid and ctenoid is that cycloid is (geometry) the locus of a point on the circumference of a circle that rolls without slipping on a fixed straight line while ctenoid is a ctenoidean. As adjectives the difference between cycloid and ctenoid
ctenoid scale Example sentences - Cambridge Dictionary
WebCarp are various species of oily freshwater fish from the family Cyprinidae, a very large group of fish native to Europe and Asia. While carp is consumed in many parts of the world, they are generally considered an invasive species in parts of Africa, Australia and most of the United States. Common carp in Lake Minnetonka, Minnesota. WebApr 26, 2024 · English: Three scales were taken from various locations from a perch and stained. The medial scale was taken from the middle of the fish, the dorsal scale was … sewa wifi portable
Ctenoid - definition of ctenoid by The Free Dictionary
Ctenoid scales. Ctenoid (toothed) scales are like cycloid scales, except they have small teeth or spinules called ctenii along their outer or posterior edges. Because of these teeth, the scales have a rough texture. They are usually found on fishes with spiny fin rays, such as the perch-like fishes. See more A fish scale is a small rigid plate that grows out of the skin of a fish. The skin of most jawed fishes is covered with these protective scales, which can also provide effective camouflage through the use of reflection See more Cosmoid scales are found only on ancient lobe-finned fishes, including some of the earliest lungfishes (subclass Dipnoi), and in Crossopterygii, … See more Ganoid scales are found in the sturgeons, paddlefishes, gars, bowfin, and bichirs. They are derived from cosmoid scales and often have serrated … See more Placoid (pointed, tooth-shaped) scales are found in the cartilaginous fishes: sharks, rays. They are also called dermal denticles. Placoid scales are structurally homologous with vertebrate teeth ("denticle" translates to "small tooth"), having a central See more The bony scales of thelodonts, the most abundant form of fossil fish, are well understood. The scales were formed and shed throughout the organisms' lifetimes, and quickly separated after their death. Bone, a tissue that is both resistant to mechanical … See more Elasmoid scales are thin, imbricated scales composed of a layer of dense, lamellar collagen bone called isopedine, above which is a layer of tubercles usually composed of bone, as in Eusthenopteron. The layer of dentine that was present in the first lobe-finned … See more Leptoid (bony-ridge) scales are found on higher-order bony fish, the teleosts (the more derived clade of ray-finned fishes). The outer part of these scales fan out with bony ridges while the inner part is criss-crossed with fibrous connective tissue. Leptoid scales are … See more WebWikipedia They possess 24 to 30 ctenoid scales on the body, becoming cycloid on the nape before disappearing just behind the eyes. De Wikipedia The body is covered in … WebExamples of how to use “ctenoid scale” in a sentence from the Cambridge Dictionary Labs sewa women\u0027s association