NOUN
- either of a pair of fins attached to the pelvic girdle in fishes that help control the direction of movement; correspond to hind limbs of a land vertebrate
How To Use pelvic fin In A Sentence
- The fin's origin is relatively far behind the pelvic fin insertion.
- The pelvic fin usually consists of a spine on each side and one fin ray.
- The rice field eel has an anguilliform body with a large mouth and small eyes and no pectoral and pelvic fins.
- Salmonids all have a small appendage called the axillary process located at the origin of the pelvic fins on the body. Trout and Salmon of North America
- This faster - moving air provides the pelvic fin with additional lift.
- In both living and fossil forms, the pectoral and pelvic fins are prominent characteristics of the locomotor anatomy.
- With regard to the specific characters of the species of _Zeugopterus_ nothing is known of peculiarities in mode of life which would give an importance in the struggle for existence to the concrescence of the pelvic fins with the ventral in _punctatus_, to the absence of this character and the elongation of the first dorsal ray in _unimaculatus_, or to the absence of both characters in _norvegicus_. Hormones and Heredity
- Not a true eel, it has long pelvic fins, which help it find food.
- The frogfish uses its stalked pectoral fins and its pelvic fins to slowly ‘walk’ across the bottom.
- Gobies are distinguished from sculpins of similar appearance by their fused pelvic fin, which is characteristic of the family Gobiidae.