Pomacentridae is a family of ray-finned fish, comprising the damselfishes and clownfishes. This family were formerly placed in the order Perciformes but are now regarded as being incertae sedis in the subseries Ovalentaria in the clade Percomorpha. They are primarily marine, while a few species inhabit freshwater and brackish environments. They are noted for their hardy constitutions and territoriality. Many are brightly colored, so they are popular in aquaria.
Anomalopidae are a family of fish distinguished by bioluminescent organs located underneath their eyes, for which they are named. These light organs contain luminous bacteria and can be "shut off" by the fish using either a dark lid or by being drawn into a pouch. They are used to communicate, attract prey, and evade predators.
The giant grouper (Epinephelus lanceolatus), also known as the Queensland groper (grouper), brindle grouper or mottled-brown sea bass, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It has a wide Indo-Pacific distribution and is one of the largest extant species of bony fish.
Cardinalfishes are a family, Apogonidae, of ray-finned fishes found in the Atlantic, Indian, and Pacific Oceans; they are chiefly marine, but some species are found in brackish water and a few are found in fresh water. A handful of species are kept in the aquarium and are popular as small, peaceful, and colourful fish. The family includes about 370 species.
The silvertip shark is a large species of requiem shark, in the family Carcharhinidae, with a fragmented distribution throughout the tropical Indian and Pacific Oceans. It is often encountered around offshore islands and coral reefs, and has been known to dive to a depth of 800 m (2,600 ft). The silvertip shark resembles a larger and bulkier grey reef shark, but can be easily identified by the prominent white margins on its fins. It attains a maximum length of 3 m (10 ft).
Sargocentron is a genus of squirrelfish found in tropical parts of the Indian, Pacific and Atlantic Oceans, with the greatest species diversity near reefs in the Indo-Pacific. Being largely or entirely nocturnal, they have relatively large eyes. Red and silvery colours dominate. The preopercle spines are venomous and can give painful wounds. Most have a maximum length of 15–25 cm (6–10 in), but S. iota barely reaches 8 cm (3 in), and S. spiniferum can reach more than 50 cm (20 in).
Acanthurus olivaceus, the orange-band surgeonfish, the orange-shoulder surgeonfish or the orangebar tang, is a species of marine ray-finned fish belonging to the family Acanthuridae, this family includes the surgeonfishes, unicornfishes and tangs. It lives in the tropical waters of the Indo-west Pacific.
Caracanthus, the coral crouchers, or orbicular velvetfishes, are a genus of ray-finned fishes. They live in coral reefs of the tropical Indo-Pacific. This genus is the only member of the monotypic subfamily Caracanthinae, part of the family Scorpaenidae.
Epinephelus flavocaeruleus, commonly called blue-and-yellow grouper, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is associated with reefs in the Indian Ocean.
The longspine squirrelfish is a silvery red, sea fish with orange-gold body stripes. One of about 150 species of squirrelfish, their most distinguishing characteristics are their large eyes and the long third spine of the anal fin. It is often included in public aquarium displays. The length of the longspine squirrelfish is about 18 cm. It lives in coral reefs in tropical and warm temperate seas and eats zoobenthos. It is territorial and uses sounds called "grunts" and "staccatos" to defend its crevice, warn of danger and, in groups, intimidate predators such as the moray eel. The longspine squirrelfish is edible and harvested on a small scale.
Sargocentron spiniferum, common name sabre squirrelfish, giant squirrelfish and spiny squirrelfish, is a large Indo-Pacific species of squirrelfish belonging to the family Holocentridae.
Holocentrinae is a subfamily of Holocentridae containing 40 recognized species and one proposed species. Its members are typically known as squirrelfish and all are nocturnal. All three genera in the subfamily are found in the Atlantic and Holocentrus is restricted to this ocean. Most species in genera Neoniphon and Sargocentron are from the Indo-Pacific region and several of these occur in the Indian Ocean west of the southern tip of India.
Holocentrus adscensionis is a squirrelfish of the family Holocentridae found in the Atlantic Ocean. Its range extends from North Carolina, USA to Brazil and throughout the Caribbean Sea in the Western Atlantic and from Gabon to Ascension Island in the Eastern Atlantic. A single records were reported in 2016 from the central Mediterranean Sea off Malta and in 2023 from the Mediterranean Sea near Northern Cyprus.
Neoniphon sammara, the sammara squirrelfish, also known as the blood-spot squirrelfish, slender squirrelfish, spotfin squirrelfish, armed squirrel-fish or javelin squirrelfish, is a species squirrelfish found in the Indian Ocean and Pacific Ocean from East Africa to the Hawaiian Islands. It feeds on shrimps and small crabs and fish at night and can grow up to 32.0 centimetres (12.6 in) TL in length, though its common length is only 23.0 centimetres (9.1 in) TL. Like N. opercularis, it has a venomous spine on its preopercle.
Sargocentron caudimaculatum, the silverspot squirrelfish or whitetail squirrelfish, is a reef-associated member of the family Holocentridae. It is native to the Indian and Pacific Oceans from East Africa to Japan and northern Australia and as far east as the Marshall Islands. It lives near reefs, but can also be found in lagoons and drop-offs at depths between 2 and 40 metres. It is a nocturnal predator, feeding primarily on crabs and shrimps. It can reach sizes of up to 25.0 centimetres (9.8 in) TL. Although it is caught commercially and can be found in the aquarium trade, there are no known major threats to this species.
Sargocentron ensifer, or the yellow-striped squirrelfish, is a member of the family Holocentridae. It is native to the Pacific Ocean from southern Japan to New Caledonia, Hawaii and the Pitcairn Islands. It lives in deep reefs at depths between 0 and 64 metres, hiding in crevices by day and foraging for food by night. It feeds on small fishes and crustaceans and can reach sizes of up to 23.0 centimetres (9.1 in) SL, though a length of 15.0 centimetres (5.9 in) TL is more common.
Sargocentron microstoma, the fine-lined squirrelfish, slender squirrelfish or smallmouth squirrelfish, is a member of the family Holocentridae. It has a wide range throughout the Indo-Pacific from the Chagos Archipelago, Seychelles, and the Maldives to the Hawaiian Islands, Line Islands, and the Tuamotus Archipelago, north to the Ryukyu Islands and Bonin Islands, south to Austral Islands and throughout Micronesia. It lives near reefs usually at depths between 1–35 m (3.3–114.8 ft), but can be found as deep as 183 m (600 ft). During the day it hides in crevices, especially near Acropora and Pocillopora. It is a nocturnal predator, feeding on crustaceans, worms, and fishes. It can reach sizes of up to 20 cm (7.9 in) TL and has a venomous preopercle.
Neoniphon argenteus, the clearfin squirrelfish or silver squirrelfish, is a seldom-seen member of the family Holocentridae. It is native to the Indian Ocean and Pacific Ocean from East Africa to New Caledonia. It is also found both north and south of Australia and throughout Micronesia. It lives mainly around islands and shallow reefs, and like N. sammara is associated with Acropora corals. Its depth range is 3–20 m (9.8–65.6 ft) and it can reach sizes of up to 24.0 cm (9.4 in) TL. It feeds primarily on benthic invertebrates. It is found in the ornamental trade and can be used as bait in tuna fisheries, but there are currently no known major threats to the species.
Neoniphon aurolineatus, more commonly known as the yellowstriped squirrelfish or gold-lined squirrelfish, is a member of the family Holocentridae. It has a wide range throughout the Indian and Pacific Oceans stretching east from Mauritius to Hawaii and south from Japan to the Great Barrier Reef of Australia. It lives on the outer reef slopes at depths between 30 and 188 metres. It lives near the ocean floor or in caves, generally staying alone or in small groups. It feeds on crustaceans and can reach sizes of up to 25.0 centimetres (9.8 in) TL. It is listed as "Least Concern" by the IUCN due to its deep-water habitat and lack of known major threats.
Sargocentron cornutum, the threespot squirrelfish, is a member of the family Holocentridae native to the western Pacific Ocean from Indonesia to the Great Barrier Reef. It lives in coral reefs and drop-offs between depths of 6–40 m (20–131 ft). It is a nocturnal predator, feeding on crabs and shrimps by night and hiding under ledges or in caves by day. It can reach sizes of up to 27.0 cm (10.6 in) TL and has a venomous preopercle.
