Striped Large-eye Bream [Gnathodentex aureolineatus]

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Striped Large-eye Bream, Gnathodentex aureolineatus. Easily recognized from a yellow blotch on the back. Inhabits subtidal reef flats, lagoons, and seaward reefs. May be solitary or in groups. Sometimes forms aggregations of about a hundred or more individuals. Feeds at night on benthic invertebrates like crabs and gastropods, occasionally on small fish. Indo-Pacific: East Africa to the Tuamoto Islands (excluding the Hawaiian Islands), north to Japan, south to Australia. Recently reported from Norfolk Island. Wikipedia doesn’t have an article on this fish.

 Pictures: Cook Islands by Sami Salmenkivi

Bigeye Yellow Snapper [Lutjanus lutjanus]

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The Bigeye snapper or Bigeye Yellow Snapper, Lutjanus lutjanus, is a snapper in the family Lutjanidae found in the Indian Ocean and tropical western Pacific Ocean at depths of up to 96 m.

Its color is silver white with a yellow stripe from the eye to base of caudal fin. The fins are yellow. It reaches a maximum length of 35 cm.

The bigeye snapper is a highly prized, commercially trawled fish and generally fetches a high price in the marketplace.

 Pictures: Papua, Indonesia by Sami Salmenkivi

Dark-Banded Fusilier [Pterocaesio tile]

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Pterocaesio tile, common name Dark-banded fusilier, Blue-streak Fusilier, Bartail fusilier and Neon Fusilier, is a fish belonging to the family Caesionidae. Pterocaesio tile can reach a length of 25 centimetres (9.8 in). The back of the body is dark blue, while the flanks show a bluish green strike with a black stripe along the lateral line. The lower third of the body varies from white to pinkish. The lower half of the body turns bright red at night (hence the common name Neon Fusilier). It is oviparous and non-migratory. Pterocaesio tile feeds on zooplankton and is relatively rare.

 Pictures: Top: Australia, Bottom: Papua, Indonesia by Sami Salmenkivi

Fivelined Cardinalfish [Cheilodipterus quinquelineatus]

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Fivelined Cardinalfish, Cheilodipterus quinquelineatus has black stripes on white body and a distinct yellow tail with a black spot. Inhabits reef flats and lagoon and seaward reefs to a depth of 40 m or more. Occurs singly or in small to large aggregations, taking shelter in dark crevices, branched coral, under ledges, and among the spines of Diadema setosum. Nocturnal species. Feeds on small crustaceans and gastropods, also on small fishes.

 Pictures: Papua, Indonesia by Sami Salmenkivi

Striped Eel Catfish [Plotosus lineatus]

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Plotosus lineatus, common name Striped eel catfish, is a species of eeltail catfishes belonging to the family Plotosidae. Plotosus lineatus can reach a maximum length of 32 cm (13 in) in males.[1] The body is brown with cream-colored or white longitudinal bands. The most striking feature of this species is in the fins, in fact the second dorsal, caudal and anal are fused together as in eels. In the rest of the body is quite similar to a freshwater catfish: the mouth is surrounded by four pairs of barbels, four on the upper jaw and four on the lower jaw. The first dorsal and each of the pectoral fins have a highly venomous spine. They may even be fatal.[1]   Plotosus lineatus schooling in a ball. Juveniles of Plotosus lineatus form dense ball-shaped schools of about 100 fish, while adults are solitary or occur in smaller groups of around 20 and are known to hide under ledges during the day.[1] Adult P. lineatus search and stir the sand incessantly for crustaceans, mollusks, worms, and sometimes fish.[1] Striped eel catfish is an oviparous fish; this species has demersal eggs and planktonic larvae. This species has evolved long ampullary canals in its electrosensory organs.

 Pictures: Philippines by Sami Salmenkivi

Scribbled pipefish [Corythoichthys intestinalis]

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Scribbled pipefishCorythoichthys intestinalis, is a pipefish of the genus Corythoichthys within the family Syngnathidae. The males carry the eggs inside a specific pouch until they hatch the eggs, however they are not themselves pregnant. The species live in the Indo-pacific waters. Max length : 16.0 cm. Climate / Range Tropical; 16°N – 23°S Environment Marine; reef-associated; depth range 20 – 68 m.

Biology Adults occur in shallow sandy or mixed sand, rubble, or coral areas of reef flats and lagoons, also sometimes on seaward reefs (Ref. 1602). Ovoviviparous (Ref. 205). The male carries the eggs in a brood pouch which is found under the tail (Ref. 205). Males may be brooding at 6.5-7.0 cm SL.

 Pictures: Great Barrier Reef, Australia by Sami Salmenkivi