| Triacanthus nieuhofii | |
|---|---|
 | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Tetraodontiformes |
| Family: | Triacanthidae |
| Genus: | Triacanthus |
| Species: | T. nieuhofii |
| Binomial name | |
| Triacanthus nieuhofii Bleeker, 1852 | |
Triacanthus nieuhofii, the silver tripodfish, is a species of marine ray-finned fish belonging to the family Triacanthidae, the triplespines or tripodfishes. This species is found in the Indo-West Pacific region.
Triacanthus nieuhofii was first formally described in 1852 by the Dutch physician, herpetologist and ichthyologist Pieter Bleeker with its type locality given as Siboga, west of Sumatra. [1] It was the second specuies to be described within the genus Triacanthus , the first was the type species T. biaculeatus . [2] This genus is classified in the family Triacanthidae within the suborder Triacanthoidei alongside the Triacanthodidae. [3] The 5th edition of Fishes of the World classifies the Triacanthoidei as suborder of the order Tetraodontiformes. [4]
Triacanthus nieuhofii is classified within the genus Triacanthus, a name that prefixes acanthus, which means “thorn” or “spine”, with tri-, meaning “three”, this is an allusion to the long and robust first spine of the dorsal fin and the two large spines in the pelvic fins. The specific name, honours Johan Nieuhof, the Dutch explorer and sinologist who first described and illustrated this species, calling it Hoornvisch. [5]
Triacanthus nieuhofii has six spines in the first dorsal fin and between 22 and 26 soft rays in the second dorsal fin and between 18 and 21 soft rays in the anal fin. The dorsal profile of the head is rather convex to the front of the first spine in the dorsal fin. The pelvis does not clearly taper to a point towards the tail. It is pale silvery brown on the upper body, fading to silvery white on the lower body, there are a number of irreguklarly shaped dark yellow blotches on the flank and a large blackish blitch between the first two spines if the dorsal fin which pales slightly between the second and thirs spines. The firs spine in the dorsal fin is white and the soft dorsal fin, anal fin and pectoral fins are pale with the caudal fin being white marked with yellow lines. [6] This species has a maximum published total length of 28 cm (11 in)> [7]
Triacanthus nieufofii is found in the Indian Ocean and the Western Pacific Ocean where it has been recorded from the Arabian Sea, Bay of Bengal, Andaman Sea, Indonesia and the South China Sea. [8] It is also found in northern Australia where it occurs from Broome to Admiralty Gulf in Western Australia, it may also occur in the Northern Territory. [6] The silver tripodfish is found on sand or mud flats along coasts and in estuaries where it feeds on benthic invertebrates. [7]
Tetraodontiformes, also known as the Plectognathi, is an order of ray-finned fishes which includes the pufferfishes and related taxa. This order has been classified as a suborder of the order Perciformes, although recent studies have found that it, as the Tetraodontoidei, is a sister taxon to the anglerfish order Lophiiformes, called Lophiodei, and have placed both taxa within the Acanthuriformes. The Tetraodontiformes are represented by 10 extant families and at around 430 species overall. The majority of the species within this order are marine but a few may be found in freshwater. They are found throughout the world.
Triacanthidae, the triplespines or tripodfishes, is a family of marine ray-finned fishes belonging to the order Tetraodontiformes, whicj also includes the pufferfishes, boxfishes, filefishes and related groups. The family is made up of four extant genera and three extinct genera which are known from fossils.
The spikefishes are ray-finned fishes related to the pufferfishes and triggerfishes. They live in deep waters; more than 50 m (160 ft), but above the continental shelves. They are found in the Atlantic, Indian Ocean, and the west-central Pacific.
Pseudotriacanthus is a monospecific genus of marine ray-finned fish belonging to the family Triacanthidae, the triplespines or tripodfishes. The only species in this genus is Pseudotriacanthus strigilifer, the longspined tripodfish. This taxon is found in the Indo-West Pacific region.
Triacanthus is a genus of marine ray-finned fish belonging to the family Triacanthidae, the triplespines or tripodfishes. The two species in this genus are found in the Indian Ocean and the western Pacific Ocean.
Tripodichthys is a genus of marine ray-finned fish belonging to the family Triacanthidae, the triplespines or tripodfishes. The three species in this genus are found in the Indian Ocean and the western Pacific Ocean in shallow water over soft substrates.
Trixiphichthys, is a monospecific genus of marine ray-finned fish belonging to the family Triacanthidae, the triplespines or tripodfishes. The only species in this genus is Trixiphichthys weberi, the blacktip tripodfish or longnosed tripodfish. This taxon is found in the Indo-West Pacific region.
Atrophacanthus is a monospecific genus of marine ray-finned fish belonging to the family Triacanthodidae, the spikefishes. The only species in the genus is Atrophacanthus japonicus, the upward-mouth spikefish, which is found in the Indo-West Pacific region.
Hollardia is a genus of marine ray-finned fishes belonging to the family Triacanthodidae, the spikefishes. These demersal fishes are found in the Western Atlantic Ocean with one species being found in the Pacific Ocean.
Johnsonina is a monospecific genus of marine ray-finned fish belonging to the family Triacanthodidae, the spikefishes. The only species in the genus is Johnsonina eriomma, the bullseye spikefish, which is found in the Western Atlantic Ocean.
Macrorhamphosodes, the trumpetsnouts, is a genus of marine ray-finned fishes belonging to the family Triacanthodidae, the spikefishes. The fishes in this genus are found in the deep waters of the Indian and Pacific Oceans.
Mephisto fraserbrunneri, the devil's spikefish, is a species of marine ray-finned fish belonging to the family Triacanthodidae, the spikefishes. This species is found in the Indian Ocean.
Parahollardia is a genus of marine ray-finned fishes belonging to the family Triacanthodidae, the spikefishes. These demersal fishes are found in the Western Atlantic Ocean.
Paratriacanthodes is a genus of marine ray-finned fishes belonging to the family Triacanthodidae, the spikefishes. These fishes are found found in the Indian and Pacific Oceans.
Triacanthodes is a genus of marine ray-finned fishes belonging to the family Triacanthodidae, the spikefishes. These fishes are found found in the Indian and Pacific Oceans.
Triacanthus biaculeatus, also known as the short-nosed tripod fish, black-finned triple-spine, blacktail tripodfish, hollow-snouted tripodfish or silver tripodfish, is a species of marine ray-finned fish belonging to the family Triacanthidae, the triplespines or tripodfishes. This species is found in the Indo-West Pacific region.
Triacanthodes ethiops, the shortsnout spikefish, is a species of marine ray-finned fish belonging to the family Triacanthodidae, the spikefishes. This species is found in the Northwestern Pacific Ocean.
Paratriacanthodes retrospinis, the sawspine spikefish, is a species of marine ray-finned fish belonging to the family Triacanthodidae, the spikefishes. This species is found in the Indo-Pacific region.
Triacanthodes anomalus, the red spikefish, is a species of marine ray-finned fish belonging to the family Triacanthodidae, the spikefishes. This species is found in the Northwestern Pacific Ocean.
Triacanthoidei is a suborder of ray-finned fishes belonging to the order Tetraodontiformes, which includes the pufferfishes, triggerfishes and related taxa. These benthic fishes are mainly found in the Indian Ocean with some of the spikefishes found in the Western Atlantic Ocean.