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Triggerfish have an oval-shaped, highly compressed body. The head is large, terminating in a small but strong-jawed mouth with teeth adapted for crushing shells. The eyes are small, set far back from the mouth, at the top of the head. The anterior dorsal fin is reduced to a set of three spines. The first spine is stout and by far the longest.
Description. Redtoothed triggerfish are normally deep purple with bluish-green markings on their heads and glowing light blue margins on the tail lobes and fins. Just like other fish in the family Balistidae, the tail is lyre-shaped. The mouth of the triggerfish seems to be grinning and it maintains tiny red teeth that are needle-sharp with two ...
The clown triggerfish is a fish which grows up to 50 cm (19.7 inches). [2] Its body has a stocky appearance, oval shape and compressed laterally. The head is large and represents approximately one third of the body length. The mouth is small, terminal and has strong teeth. [2]
The triggerfish's teeth and top lip are blue and the teeth are set close together inside its relatively plump mouth. It has a small second dorsal spine which is used to lock its main spine into an upright position. When sheltering in a small crevice, this locking helps protect the fish against extraction by a predator.
The grey triggerfish is a medium-sized fish that can grow to 60 cm (24 in), but a more common length is 44 cm (17 in). The small beak-like mouth at the tip of the snout has fleshy lips. The eyes are set far back near the top of the head. The body is laterally compressed and deep-bodied with a tough, leathery skin.
The titan triggerfish, giant triggerfish or moustache triggerfish (Balistoides viridescens) is a large species of triggerfish found in lagoons and at reefs to depths of 50 m (160 ft) in most of the Indo-Pacific, though it is absent from Hawaii. With a length of up to 75 centimetres (30 in), [2] it is the largest species of triggerfish in its ...
The lagoon triggerfish (Rhinecanthus aculeatus), also known as the blackbar triggerfish, the Picasso triggerfish, or the Picassofish, is a triggerfish, up to 30 cm in length, found on reefs in the Indo-Pacific region. [2] This species has been studied in a range of research contexts, from locomotion to color vision research.
The orange-lined triggerfish is an omnivorous feeder that can, because of its strong and heavy teeth, tackle a variety of benthic prey. [8] Observed food items include cnidarians, molluscs, ctenophores, crustaceans, other fish, algae, and echinoderms. [4][8] This species in particular, given its broad diet and distribution, is a crucial ...