Hippocampus angustus, commonly known as the narrow-bellied seahorse, western Australian seahorse, or western spiny seahorse, is a species of marine fish of the family Syngnathidae. It is found in waters off of Australia, from Perth to Hervey Bay, and the southern portion of Papua New Guinea in the Torres Strait. It lives over soft-bottom substrates, adjacent to coral reefs, and on soft corals at depths of 3–63 metres (9.8–206.7 ft). It is expected to feed on small crustaceans, similar to other seahorses. This species is ovoviviparous, with males carrying eggs in a brood pouch before giving birth to live young. This type of seahorse is monogamous in its mating patterns. The males only fertilize one female's eggs for the mating season because of the population distribution. While some seahorses can be polygamous because they are denser in population, this type of seahorse is more sparsely distributed and the cost of reproduction is high. Therefore, the risk to reproduce due to predatory and distributary factors limits this breed to one mate, often finding the same mate season after season.
The alligator pipefish or double-ended pipefish is a species of fish in the family Syngnathidae and is the only species in the monotypic genus Syngnathoides. It is found in shallow water in the tropical and subtropical Indo-Pacific, its range extending from East Africa to northern Australia. This fish lives in habitats of seagrass and seaweed, and hides by positioning itself vertically with its head down amidst the similar-coloured fronds of vegetation. The elongated, well-camouflaged body can reach 29 cm (11 in) in length. It feeds by sucking up its prey.
Schultz's pipefish, Corythoichthys schultzi, is a pipefish of the family Syngnathidae.
Corythoichthys intestinalis, known commonly as the scribbled pipefish, is a species of marine fish in the family Syngnathidae. Other common names used include banded pipefish, Australian banded pipefish, Australian messmate pipefish and messmate pipefish.
Corythoichthys amplexus, known commonly as the brown-banded pipefish, is a species of marine fish in the family Syngnathidae.
Corythoichthys flavofasciatus, known commonly as the network pipefish, reticulate pipefish and yellow-banded pipefish, is a species of marine fish in the family Syngnathidae.
Bhanotia nuda is a marine fish of the family Syngnathidae. It is found in the western central Pacific, near Palau and southeastern Papua New Guinea. It inhabits shallow reef habitats, mangrove forests, coral reefs, and silty waters, where it can grow to lengths of 7 centimetres (2.8 in). This species is ovoviviparous, with the males carrying eggs in brood pouches until they are ready to hatch.
Choeroichthys brachysoma is a species of marine fish of the family Syngnathidae.
Choeroichthys suillus is a species of marine fish of the family Syngnathidae. It is endemic to Australia, occurring from Perth, along northern Australia, to southern Queensland. It lives in coral reefs to a depth of 14 metres (46 ft), where it can grow to lengths of 6 centimetres (2.4 in). This species is ovoviviparous, with males carrying eggs and giving birth to live young. Within the reef it is found among coral rubble.
Corythoichthys nigripectus is a species of marine fish of the family Syngnathidae. It is found in the Indo-Pacific, from the Red Sea, Indonesia and the Philippines to the Society Islands, Guam and New Caledonia. It inhabits coral reefs and algae patches at depths of 5–30 metres (16–98 ft), where it can grow to lengths of 11 centimetres (4.3 in). This species is both monogamous and ovoviviparous, with males carrying eggs and giving birth to live young.
Corythoichthys paxtoni, commonly known as Paxton's pipefish, is a species of marine fish of the family Syngnathidae. It is endemic to the Coral Sea, being found in the Great Barrier Reef, the Chesterfield Islands, and New Caledonia. It inhabits coral reefs and rubble lagoons to depths of 18 metres (59 ft), where it can grow to lengths of 13 centimetres (5.1 in). This species mates monogamously and is ovoviviparous, with males carrying eggs until giving birth to live young.
Dunckerocampus naia is thought to be a species of marine fish of the family Syngnathidae, although further taxonomic study is needed to determine if the classification is valid or if this species is synonymous with D. dactyliophorus. It is found in the Pacific Ocean, off of Japan, Guam, Indonesia, Fiji, and the Solomon Islands. It lives in caverns or under ledges amongst rocky or coral reefs at depths of 15–40 metres (49–131 ft), where it can grow to lengths of 12 centimetres (4.7 in). It is expected to feed on small crustaceans. This species is ovoviviparous, with males carrying eggs and giving birth to live young.
Festucalex kulbickii, commonly known as Kulbicki's pipefish, or New Caledonian pipefish, is a species of marine fish of the family Syngnathidae. It is found from West Papua, Indonesia and Papua New Guinea to New Caledonia. It lives in coral reefs to depths of 56 metres (184 ft), where it can grow to lengths of 6.8 centimetres (2.7 in). It is expected to feed on small crustaceans, similar to other pipefish. This species is ovoviviparous, with males brooding eggs and giving birth to live young. The specific name honours Dr. Michel Kulbicki of L’Institut de recherche pour le développement (IRD) in Nouméa, New Caledonia.
The pink pipefish is a species of coastal pipefish of the family Syngnathidae. It has been found in the East Cape area of Milne Bay, Papua New Guinea, as well as the Solomon Islands, Bali, and Seram Island. It lives in sponges on coral reef slopes at depths of 10–25 metres (33–82 ft), where it can grow to lengths generally less than 4 centimetres (1.6 in). They are found solitary or in pairs, always on an unidentified red tubular sponge which provides them with camouflage. They are expected to feed on small crustaceans, similar to other pipefish. This species is ovoviviparous, with males brooding eggs and giving birth to live young.
Wass's pipefish is a species of marine fish of the family Syngnathidae. It is known from only six species, which were found in the coastal waters of Papua New Guinea, New Caledonia, Fiji, and Samoa. It inhabits soft coral habitats and coral rubble to depths of 50 metres (160 ft), where it can grow to lengths of 7.4 centimetres (2.9 in). Little is known of the species’ feeding habits, but it is expected to eat small crustaceans, similar to other pipefish. This species is ovoviviparous, with males carrying eggs and giving birth to live young. The specific name honours the U.S. Fish & Wildlife Service biologist Richard C. Wass.
The glittering pipefish is a species of marine coastal fish of the family Syngnathidae. It is found in the Western Pacific, from Viet Nam to Fiji and from the Ryukyu Islands to New Caledonia, where it inhabits corals, sand and reef flats to depths of 20 metres (66 ft).< It can grow to lengths of 7.3 centimetres (2.9 in), and is expected to feed on small crustaceans, similar to other pipefishes. It is secretive and rarely observed. This species is ovoviviparous, with males carrying eggs and giving birth to live young.
The spinysnout pipefish is a species of marine pipefish of the family Syngnathidae. It is found in the Indo-Pacific, from Sri Lanka to Samoa, and from Japan and the Marshall Islands to central Australia. It lives in rocky and coral reefs, rubble, lagoons and intertidal zones, often at depths of 2–12 metres (6.6–39.4 ft), where it can grow to lengths of 12 centimetres (4.7 in). It is expected to feed on small crustaceans, similar to other pipefish. This species is ovoviviparous, with males carrying eggs in a brood pouch before giving birth to live young.
The short-keel pipefish is a species of fish of the family Syngnathidae. It is known from Darwin to the Torres Strait and southern Papua New Guinea. It lives in coastal fresh and brackish habitats, such as mudflats, mangroves, gravel, sandy and rocky habitats, and coral and shell rubble. It can grow to lengths of 12 centimetres (4.7 in). It is expected to feed on small crustaceans such as copepods, shrimps and mysids, similar to other pipefish. This species is ovoviviparous, with males carrying eggs in a brood pouch before giving birth to live young. Males may brood at 7.8 centimetres (3.1 in).
The beady pipefish is a species of pipefish of the family Syngnathidae. It is found in the Indo-West Pacific, from the western Persian Gulf, to the north central Indian Ocean, to Japan and Australia. It lives in the lower parts of streams and rivers, estuarine habitats such as seagrass beds and mangroves, and shallow inshore habitats, where it can grow to lengths of 16–18 centimetres (6.3–7.1 in). It is expected to feed on small crustaceans, similar to other pipefish. This species is ovoviviparous, with males carrying eggs in a brood pouch before giving birth to live young. Average brood size is 177.
Hippichthys spicifer, commonly known as bellybarred pipefish, banded freshwater pipefish, or blue spotted pipefish, is a species of pipefish of the family Syngnathidae. It is found in the Indo-Pacific, from the Red Sea and East Africa to Sri Lanka and Samoa. It lives in shallow coastal and estuarine habitats such as mangroves, tidal creeks, and the lower reaches of rivers, where it can grow to lengths of 18 centimetres (7.1 in). It is expected to feed on small crustaceans and mosquito larvae. This species is ovoviviparous, with males brooding eggs in a brood pouch before giving birth to live young. It is reproductively active all year, with males and females reaching sexual maturity at 10.8 and 10 centimetres respectively. Brood size can vary significantly, from 114 to 1764, with an average of 604.4 plus or minus 322.8.
