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The ventral fins are yellow. These fins are fused to form a cup. There are two dorsal fins. The species can be identified by the arrangement of pores on its head, the spines and rays in the dorsal fins, and the scales and papillae on the head and face. The yellow ventral fins also distinguish it from other gobies. [2]
Yellow on upper part with four lateral blue stripes; white on ventral side. Yellow fins. Usually found in shoals around coral reefs. The young fish dwell on sea-grass beds around reefs. Omnivorous 30 cm. A third grade eating fish. Crimson jobfish (Sacré chien blanc) Brown to reddish purple on upper part, colour is less pronounced below.
The tucan fish has a pale-silver body, with bright-yellow ventral fins (hence its other common name); the rest of its fins are some mixture of yellow and red, usually with a reddish tail fin. [5] In terms of size, it reaches 21.4 cm SL. [1] This makes it one of the larger members of the genus Chalceus, outsized only by the pinktail chalceus.
Foureye butterflyfish are deep-bodied and laterally compressed, with a single dorsal fin and a small mouth with tiny, bristle-like teeth. The body is light grey, sometimes with a yellowish hue, and dark forward-pointing chevrons. The ventral fins are yellow. The species gets its common name from a large dark spot on the rear portion of each ...
pelvic fin: composed of one spine and 3–5 soft rays. pectoral fin: composed of 10–12 rays. The two most caudal rays of each pectoral fin are detached from the rest of the fin, and angled in a ventral direction. The fish employ these two rays to prop up the forward part of their body, as well as to "walk" along the bottom of the substrate.
The ventral fins are also yellowish, and the pectoral fin is pale yellow to hyaline with a fine dusting and lacks a dark spot at the base. As yellowfin whiting grow, the yellow colour of the fins often fades and in large specimens may be completely absent. The caudal fin is greyish. [7]
The Dolly Varden trout (Salvelinus malma) is a species of salmonid ray-finned fish native to cold-water tributaries of the Pacific Ocean in Asia and North America.Despite the name "trout" (which typically refers to freshwater species from the genera Salmo and Oncorhynchus), it belongs to the genus Salvelinus (chars), which includes 51 recognized species, the most prominent being the brook ...
Actinopterygii (/ ˌ æ k t ɪ n ɒ p t ə ˈ r ɪ dʒ i aɪ /; from Ancient Greek ἀκτίς (aktis) 'having rays' and πτέρυξ (ptérux) 'wing, fins'), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish [2] that comprise over 50% of living vertebrate species. [3]