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The scales themselves are covered with a delicate net pattern (right). [24] [25] ... A fish scale is a small rigid plate that grows out of the skin of a fish.
Keeled scales of a colubrid snake (banded water snake; Nerodia fasciata). In zoology, a scale (Ancient Greek: λεπίς, romanized: lepís; Latin: squāma) is a small rigid plate that grows out of an animal's skin to provide protection.
Ørvig rationalized the observed patterns of cosmine in the fossil record with putative losses of the tissue in coelacanths and extant lungfish [6] proposing that coelacanths, for example, retained a juvenile scale morphology through pedomorphosis. Keith Thomson later analyzed specific growth structures on the cosmine sheet- 'blisters' or ...
The scales of alligator gar are not like the scales of other fishes, which have flexible elasmoid scales; gar bodies are protected by inflexible and articulated ganoid scales that are rhomboidal-shaped, often with serrated edges, and composed of a tough inner layer of bone and hard outer layer of ganoin, which is essentially homologous to tooth ...
Pearlscale butterflyfish can grow to a standard length of 15 centimetres (5.9 in) with no discernible differences between males and females. The body is pearly white and the scales have black edges, giving the sides a more cross-hatched pattern instead of the clear chevrons in related species.
Scales to be domed; Dorsal fin to be single, all other fins to be paired; Caudal fin to be divided and forked and held above the horizontal; Extremities of fins to have a slightly rounded appearance; Minimum length of body to be 5.5 cm (2¼ inches) The fish should be bright and alert and displaying well developed domed scales all over the body ...
These scales have a slight sheen that produces a pearly appearance. [2] [3] The name "calico goldfish" came about because the first fish that were introduced with this type of scales had a mottled calico pattern with several colours. [1] Calico goldfish often have patches of red, yellow, grey and black along with dark speckles on a blue background.
Scale armour is armour in which the individual scales are sewn or laced to a backing by one or more edges and arranged in overlapping rows resembling the scales of a fish/reptile or roofing tiles. [3] The scales are usually assembled and strapped by lacing or rivets. Lorica squamata is an ancient Roman armour of this type. [1]