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Batoid gill slits lie under the pectoral fins on the underside, whereas a shark's are on the sides of the head. Most batoids have a flat, disk-like body, with the exception of the guitarfishes and sawfishes, while most sharks have a spindle-shaped body. Many species of batoid have developed their pectoral fins into broad flat wing-like appendages.
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]
The dorsal surface is reddish or grayish, the chin black, the belly pale and the fins reddish-brown with darker edges and paling to grayish-white at their bases. [5] [6] Three lower rays of the northern sea robin's pelvic fins are feelers used to "walk" along the bottom, so as to stir up bottom sediments to find food. Northern searobins grow to ...
A fairly large marine fish for the aquarium with a royal blue body, yellow tail, and black palette design on their body. A star on the silver screen, as Dory in the Disney/Pixar movie Finding Nemo .
Like all rays, the thornback ray has a flattened body with broad, wing-like pectoral fins. The body is kite-shaped with a long, thorny tail. The back is covered in numerous thorny spines, as is the underside in older females. [2] [4] Adult fish can grow to 1 metre (3.3 ft) in length, although most are less than 85 centimetres (33 in).
The flying fish's evolutionary streamlined body (which reduces drag) and winglike pectoral fins (that can be laid flat) allow for this species of fish to "fly". Flying fish can be classified into two aerodynamic designs, monoplane and biplane. California flying fish are biplane, meaning they have two sets of "wings". [15]
Neopterygii (from Greek νέος neos 'new' and πτέρυξ pteryx 'fin') is a subclass of ray-finned fish (Actinopterygii). Neopterygii includes the Holostei and the Teleostei, of which the latter comprise the vast majority of extant fishes, and over half of all living vertebrate species. [2]
The four stripe damsel is a perfect beginner marine fish as it is very hardy. This fish is highly territorial and is best suited for a semi-aggressive to aggressive tank. 10 cm (3.9 in) Garibaldi damsel: Hypsypops rubicunda: Yes: These are temperate fish and require cooler water. They are much larger than most other damsels. 30 cm (11.8 in)