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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 and colouration, as well as possible hydrodynamic advantages.
Jul 24, 2022 · Learn about the different types of fish scales, how they develop and what functions they serve. Find out how to identify placoid, cosmoid, ganoid and ctenoid scales and their features.
Mar 12, 2023 · Learn about the four types of fish scales, their characteristics, and their functions for fish protection and movement. Discover how fish scales are used for human applications such as jewelry, artwork, and medicine.
- Placoid Scales. Cartilaginous fish like sharks, stingrays, and chimaeras have placoid scales, which are a type of fish scales. This type of scale also goes by the name dermal denticle.
- Cosmoid Scales. Cosmoid scales refer to a bony inner core surrounded by an enamel-like substance called cosmine. The combination of bone and an enamel material produces scales that are extremely hardy and resistant to deterioration.
- Ganoid Scales. Ginglymodi is a suborder of fish that comprises some living families, that include bowfins (Amiidae), gars (Lepisosteidae), and bichirs (Polypteridae), as well as a few extinct ones like the Dapediidae and Pycnodontidae, possess ganoid scales.
- Cycloid and Ctenoid Scales. The terms cycloid and ctenoid derive from Greek words that describe their shape and look. Did you know that the word cycloid means circle?
Oct 19, 2023 · Learn about the different types of fish scales, such as placoid, ganoid, cycloid, ctenoid and cosmoid, and how they vary in appearance and function. See photos and diagrams of fish with different scales and how they help in classification and identification.
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Mar 15, 2020 · Learn about the different types of fish scales, how they evolved and how they affect the fish's life. Find out which fish have placoid, ganoid, elasmoid, ctenoid or cycloid scales and how they vary in size and distribution.
Fishes such as the tunas have tiny scales often found in discrete areas of the body. Many fishes such as the Coral Snappers have medium sized scales whereas the scales of others such as the Tarpon, Megalops cyprinoides , are large enough to be used in jewellery.
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