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External anatomy of a bony fish (Hector's lanternfish): 1. operculum (gill cover), 2. lateral line, 3. dorsal fin, 4. adipose fin, 5. caudal peduncle, 6. caudal fin, 7. anal fin, 8. photophores, 9. pelvic fins (paired), 10. pectoral fins (paired) Internal anatomy of a bony fish. Fish anatomy is the study of the form or morphology of fish. It ...
Ichthys was adopted as a Christian symbol.. The ichthys or ichthus (/ ˈ ɪ k θ ə s / [1]), from the Greek ikhthū́s (ἰχθύς, 1st cent.AD Koine Greek pronunciation: [ikʰˈtʰys], "fish") is (in its modern rendition) a symbol consisting of two intersecting arcs, the ends of the right side extending beyond the meeting point so as to resemble the profile of a fish.
Outline of fish. The following outline is provided as an overview of and topical guide to fish: Fish – any member of a paraphyletic group of organisms that consist of all gill -bearing aquatic craniate animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as ...
A fish (pl.: fish or fishes) is an aquatic, anamniotic, gill-bearing vertebrate animal with swimming fins and a hard skull, but lacking limbs with digits.Fish can be grouped into the more basal jawless fish and the more common jawed fish, the latter including all living cartilaginous and bony fish, as well as the extinct placoderms and acanthodians.
Narrowly defined, Coregonus artedi is known variously with the common names cisco, northern cisco, lake herring, chub or tullibee and its Anishinaabe name Odoonibiins. It is a pelagic fish occurring in the midwater zone of cold water lakes in North America. In the northern and western parts of its range it is also found in large rivers.
Outline of sharks. A great white shark at Isla Guadalupe, Mexico. The following outline is provided as an overview of and topical guide to sharks: Sharks ( superorder Selachimorpha) are a type of fish with a full cartilaginous skeleton and a highly streamlined body. The earliest known sharks date from more than 440 million years ago, before the ...
Gills allow fish to breathe underwater. The fish draws oxygen-rich water in through the mouth (left). It then pumps it over gills so oxygen enters the bloodstream, and allows oxygen-depleted water to exit through the gill slits (right) Fish gills are organs that allow fish to breathe underwater. Most fish exchange gases like oxygen and carbon ...
The dorsal fin is shaped like a scythe. Permit tails are also deeply forked, and their bodies are compressed laterally, making the fish tall and thin when viewed from the front. [3] The average permit has six or seven dorsal spines, and 18 to 21 soft rays. The anal fin has two or three spines, and 16 to 18 soft rays. [2]
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