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A fishplate joins two lengths of track. A fishplate, splice bar or joint bar is a metal connecting plate used to bolt the ends of two rails into a continuous track. The name is derived from fish, [1] a wooden reinforcement of a "built-up" ship's mast that helped round out its desired profile. [2] The top and bottom faces taper inwards along ...
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. The term scale derives from the Old French escale, meaning a ...
Overall length. Standard length (SL) is the length of a fish measured from the tip of the snout to the posterior end of the last vertebra or to the posterior end of the midlateral portion of the hypural plate. This measurement excludes the length of the caudal (tail) fin. [1] Total and fork length of a fish. Total length (TL) is the length of a ...
Plate (dishware) Typical Chinese plate or dish shape, with narrow lip. Jingdezhen ware, Yuan dynasty, 1271–1368. Silver-gilt plate, 1605, from the dinner service of Constance of Austria. Probably used as a charger to place other tableware on. A plate is a broad, mainly flat vessel on which food can be served. [1]
Platy is a common name of freshwater fish in the genus Xiphophorus that lack a "sword" at the bottom of their tails. Both species are livebearers, similar to other fish of the family Poeciliidae, such as the guppy and molly. Platies are native to the east coast of Central America and southern Mexico. [1][2] The two species, the southern ...
Infraclass Holostei (gars and bowfins) Infraclass Teleostei (many orders of common fish) Class Sarcopterygii (lobe-finned fish) Subclass Actinistia (coelacanths) Subclass Dipnoi (lungfish, sister group to the tetrapods) † – indicates extinct taxon. Some palaeontologists contend that because Conodonta are chordates, they are primitive fish.
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 ...
The largest fish of the now-extinct class Placodermi was the giant predatory Dunkleosteus. The largest and most well known species was D. terrelli, which grew almost 9 m (29.5 ft) in length [21] and 4 t (4.4 short tons) [22] in weight. Its filter feeding relative, Titanichthys, may have rivaled it in size. [23]