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Ophidiiform fish typically have slender bodies with small heads, and either smooth scales, or none at all. They have long dorsal fins, and an anal fin that is typically united with the caudal fin. The group includes pelagic, benthic, and even parasitic species, although all have a similar body form.
Also part of the fish's integumentary system are the scales that cover the outer body of many jawed fish. The commonly known scales are the ones that originate from the dermis or mesoderm, and may be similar in structure to teeth. Some species are covered by scutes instead. Others may have no scales covering the outer body.
The anal fin has 3 spines and 7 to 10 soft rays while the caudal fin is emarginate. They have 75–100 pored scales in their lateral line . [ 5 ] They have a silvery white body which has 3 or 4 curved stripes from the nape to the rear of the body with the lowest stripe continues through the centre of the caudal fin.
The caudal fin is rounded or truncate with rounded corners. It has smooth scales which are largely covered by skin and auxiliary scales. There are 11 spines and 18-19 soft rays in the dorsal fin while the anal fin has 3 spines and 9-10 soft rays. [2] The colour of this fish is overall yellowish to reddish brown, becoming paler ventrally.
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.
Tallness and narrowness of the skull. In fish, the term usually refers to an "elongate highly compressed transparent, ribbon-like larval stage". liver A digestive and storage organ. longitudinal series (scales) The number of scale rows above the lateral line from the first pored lateral line scale to the caudal fin base. lunate
There is a single dorsal fin located mid-body and a deeply forked tail-fin. Their bodies are compressed laterally, and ventral scales protrude in a somewhat serrated fashion. Unlike other genus members, they have no scales on heads or gills; [4] moreover, their scales are large and easy to extract. This species of fish may attain a length of 45 ...
Meristics is an area of zoology and botany which relates to counting quantitative features of animals and plants, such as the number of fins or scales in fish.A meristic (countable trait) can be used to describe a particular species, or used to identify an unknown species.