pelvic fin


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Related to pelvic fin: caudal fin

pelvic fin

n.
Either of a pair of lateral hind fins of fishes, attached to the pelvic girdle.

pelvic fin

n
(Zoology) either of a pair of fins attached to the pelvic girdle of fishes that help to control the direction of movement during locomotion

pel′vic fin′


n.
(in fishes) either of a pair of fins behind and below the pectoral fins, corresponding to the hind limbs of a land vertebrate.
[1905–10]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pelvic fin - either of a pair of fins attached to the pelvic girdle in fishes that help control the direction of movementpelvic fin - 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
fin - organ of locomotion and balance in fishes and some other aquatic animals
References in periodicals archive ?
Ventrum cream to light brown, dorsal and caudal fin dark blue-black, anal fin dark gray to dark blue-black, pelvic fin light with black tips, pectoral fins mostly brown-black, but distal half of unbranched rays white.
Pectoral-fin posterior tip reaching from the origin of the pelvic fin to the 4th anal-fin ray in males, from the origin of the pelvic fin to the urogenital papilla in females.
TEHRAN (FNA)- The discovery of well-preserved pelves and a partial pelvic fin from Tiktlik roseae, a 375 million-year-old transitional species between fish and the first legged animals, reveals that the evolution of hind legs actually began as enhanced hind fins.
14 ( ANI ): Researchers have discovered a well-preserved pelves and a partial pelvic fin from Tiktlik roseae, a 375 million-year-old transitional species between fish and the first legged animals, which has revealed that the evolution of hind legs actually began as enhanced hind fins.
03) describes gape expansion and anterior movement of the pelvic fin in large-bodied versus small-bodied fish.
The ratios of urogenital papillae, pelvic fin length, pelvic spine length, caudal fin length, pre dorsal length, pre anal length, pre pelvic length, pre pectoral length, caudal peduncle length, body depth, and head length.
carolinae have recently been described from Perry County, Missouri, that differ from epigean populations in relative eye size, amount of pigmentation, body shape, reduction in pelvic fin ray number, and enlargement of cephalic lateralis pores (Burr et al.
Cottus carolinae collected from caves and resurgence streams in Perry County exhibit reduced pi gmentation and pelvic fin ray counts compared to other surface streams in Missouri and to the literature.
Nearly full complements of fin spines and rays were present as early as the posttransition juvenile stage: the pelvic fin had 1 spine and 4 rays; the pectoral fin had 17 rays; the dorsal fin had 12 spines and 16 rays; and the anal fin had 2 spines and 9 rays (Table 2; Fig.
Pectoral fins elliptical, posterior margin reaching urogenital papilla in males, reaching pelvic fin base in females.
4 in head length; pelvic fin short, not reaching the base of the anal fin, 4.