pelvic fins

modified portions of the pelvic fins in male sharks, rays and chimaeras used for transferring sperm to the female.

Most species are small bottom dwellers with a weak suction cup formed by the fusion of their pelvic fins.

aerofoils Modified pectoral or pelvic fins used for gliding in some fishes.

ventral (or pelvic) fins correspond to the hind limbs of a quadruped .

Flying fish rely on a similar flow of accelerated air from their pectoral fins to provide lift to their smaller pelvic fins.

Anterior dermal window of light organ between insertions of pelvic fins.

large ferocious northern deep-sea food fishes with strong teeth and no pelvic fins.

pelvic bud Swelling at site of future pelvic (ventral) fins; anlage of pelvic fins.

Elongated mostly scaleless marine fishes with large pectoral fins and reduced pelvic fins.

elongate fishes with pelvic fins and girdle absent or reduced.

suctorial Adapted for sucking, e. g. , the pelvic fins in some gobies .

sucker An organ used to create a vacuum, such as the modified pelvic fins in some gobies or the suctorial disc in Cyclopterus lump us.

superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys;