Sentence examples for ventral fin from inspiring English sources
noun
A fin, usually paired, located ventrally below the pectoral fins of a fish.
The anus opens well behind the atriopore, on the left side of the ventral fin.
The dorsal pattern often extends to the ventral fin margins; the underside is otherwise white to cream-colored.
Posterior to the spine origin, there is a low ventral fin fold that does not reach to the spine tip.
It is armed with large tubercles and a midline row of large thorns in front of the stinging spine which has the dorsal and ventral fin folds behind.
The tail has a pattern of saddles or bands behind the sting; the tip is white and the ventral fin fold darkens to almost black posteriorly.
It is broad and flattened until the base of the sting; after, it tapers rapidly and there is a prominent ventral fin fold running almost to the sting tip, as well as a low dorsal ridge.
It moved only slightly, between the ventral fins of one of Pisces's fish.
The ventral fins are abdominal; the caudal fin is truncate.
Ventral fins and a pointed caudal fin are large in proportion to the body size.
The dorsal and pectoral fins are spineless, and ventral fins are absent.
Climatius had two dorsal fins and numerous paired ventral fins, each with a supporting spine.
