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The stone moroko (Pseudorasbora parva), also known as the topmouth gudgeon, [1] is a species of freshwater ray-finned fish belonging to the family Gobionidae, the gudgeons. [2] This species is native to Asia, but introduced and now considered an invasive species in Europe and North America. The fish's size is rarely above 8 cm and usually 2 to ...
Gudgeon with a pintle. A gudgeon is a socket-like, cylindrical (i.e., female) fitting attached to one component to enable a pivoting or hinging connection to a second component. The second component carries a pintle fitting, the male counterpart to the gudgeon, enabling an interpivoting connection that can be easily separated. Designs that may ...
The thicklip gudgeon is classified in the genus Sarcocheilichthys, this name is a combination of Greek terms sarco-, from sárx, which means "flesh", and, cheī́los, meaning "lip", an allusion to the fleshy lips of the typw species of the genus S. variegatus suffixed with ichthýs which means "fish".
Pintle/gudgeon sets have many applications, for example in sailing, to hold the rudder onto the boat; in transportation, in which a pincer-type device clamps through a lunette ring on the tongue of a trailer; and in controllable solid rocket motors, in which a plug moves into and out of the motor throat to control thrust.
In very early engine designs, including those driven by steam, and many very large stationary or marine engines, the gudgeon pin is located in a sliding crosshead that connects to the piston via a rod. A gudgeon is a pivot or journal. The origin of the word gudgeon is the Middle English word gojoun, which originated from the Middle French word ...
The body of the mummichog is elongate but thick, with a deep caudal peduncle. Usual length is 7.5 to 9 cm (3.0 to 3.5 in) but a maximum length of up to 15 cm (5.9 in) is possible. The mouth is upturned and the lower jaw protrudes when the mouth is closed. Pectoral and tail fins are round.
Gobio gobio, or the gudgeon or common gudgeon, is a species of fish in the family Gobionidae. [2] This small fish is widely distributed in fresh-water streams and lakes across central and temperate Eurasia. The gudgeon inhabits various fresh-water habitats with sandy bottoms. It is a gregarious species, and feeds on benthic invertebrates. Its ...
The Danube gudgeon grows to a maximum length of 15 centimetres (5.9 in), though a more normal size is 10 to 12 centimetres (3.9 to 4.7 in). It has a distinctive pair of barbels at the corner of the mouth which are long enough to extend back to beyond the eyes.