Search results
Results from the WOW.Com Content Network
The paired pelvic or ventral fins are the belly fins (from Latin venter 'belly') are typically located ventrally below and behind the pectoral fins, although in many fish families they may be positioned in front of the pectoral fins (e.g. cods).
Fins allow the sharks to be able to guide and lift themselves. Most sharks have eight fins: a pair of pectoral fins, a pair of pelvic fins, two dorsal fins, an anal fin, and a caudal fin. Pectoral fins are stiff, which enables downward movement, lift, and guidance. The members of the order Hexanchiformes have only a single
A peculiar function of pectoral fins, highly developed in some fish, is the creation of the dynamic lifting force that assists some fish such as sharks in maintaining depth and also enables the "flight" for flying fish. Certain rays of the pectoral fins may be adapted into finger-like projections, such as in sea robins and flying gurnards.
The bones to which the pectoral fin is attached. peduncle Usually referred to as the caudal peduncle, the region of the body between the end of the anal fin and the base of the caudal fin. pelagic Living on or in the open seas. pelvic girdle The bones to which the ventral fins are attached. pelvic fins Paired fins behind or below the pectoral fins.
The new species doesn’t have lateral lacrimal or second preopercular spines, meaning a spine on the head and the front of the gills. The fish also has much longer lower pectoral-fin rays, the ...
Well developed fins are used for maintaining balance, braking and changing direction. The pectoral fins act as pivots around which the fish can turn rapidly and steer itself. The paired pectoral and pelvic fins control pitching, while the unpaired dorsal and anal fins reduce yawing and rolling. The caudal fin provides raw power for propelling ...
Pectoral slapping, informally known as pec-slapping, is when a cetacean turns on its side, exposes one or both pectoral fins into the air, and then slaps them against the surface of the water. It is a form of non-vocal communication [ 36 ] commonly observed in a variety of whale and dolphin species as well as seals.
The genus name Pterois is based on Georges Cuvier's 1816 French name, "Les Pterois", meaning "fins" which is an allusion to the high dorsal and long pectoral fins. [ 10 ] Species