pelvic fin


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Related to pelvic fin: caudal fin

pelvic fin

one of a pair of propellant/sterring organs attached to the PELVIC GIRDLE of fish.
References in periodicals archive ?
The pelvic fins are large, with the first rays approximately 32 mm long and 3 mm in diameter.
Both pectoral and pelvic fins are significantly longer in males than in females, whereas pectoral fins of females are located more anteriorly then in males.
Eyes and mouth were completely covered with fungal hyphae; pectoral and pelvic fins damaged were damaged too (Fig.
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.
01 mm): total length (TL), standard length, head length (HL--distance from the tip of the snout to the operculum margin), predorsal length (to the anterior base of the dorsal fin), preanal length (to the anterior base of the anal fin), trunk length (distance between the operculum and the anterior base of the anal fin), tail length (distance between the anus and the tip of the notochord), caudal peduncle height (distance between the anterior base of the anal fin and the base of the dorsal fin), snout length (from the tip of the snout to the eye), posterior snout width (before the eyes), eye diameter, pectoral fin and pelvic fin lengths (distance between the anterior base and the fin margin), head width (behind the eyes), height at the pectorals, and preanal and postanal regions (Figure 1).
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.
The pelvic fin, which can be very apparent, possesses one spine and five to 10 soft rays.