Heminodus

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Heminodus
Scientific classification Red Pencil Icon.png
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Scorpaeniformes
Family: Peristediidae
Genus: Heminodus
H. M. Smith, 1917
Species:
H. philippinus
Binomial name
Heminodus philippinus
H. M. Smith, 1917
Synonyms [1]

Heminodus is a genus of marine ray-finned fish belonging to the family Peristediidae, the armoured gurnards or armored sea robins. It is currently considered to be a monotypic genus, its only species being Heminodus philippinus. [1]

Contents

Taxonomy

Heminodus was first described as a genus in 1917 by the American ichthyologist Hugh McCormick Smith when he was describing its only species H. phillipinus with its type locality being given as the Mindanao Sea off Tawi-tawi in the Philippines. [2] [3] Specimens collected in the eastern Indian Ocean off Western Australia between 1989 and 1991 were identified as probably belonging to the genus Hemidonus but were not identified to species, so may have been H. phillipinus or a new undescribed species. [4] The genus name was not explained by Smith but means "half knot", may be an allusion to the short and spiny rostral processes as compared to the long and flat processes on the jaggedhead gurnard (Gargariscus prionocephalus). The specific name refers to the type locality. [5]

Description

Heminodus philippinus has a fusiform body armoured with bony plates and a large, flattened head with a broad snout which has a short, triangular rostral projection on either side, almost parallel to each other. The space between the eyes is concave with no clear ridges/ There are spines on the supraocular, parietal, posttemporal, opercular, and preopercular bones in the head. The large mouth is positioned below the snout and there are villiform teeth in the upper jaw and there are no other teeth in the mouth. There are 1 or 2 short barbels on the lip and none on chin. The armoured pates on the body are arranged in 4 rows and each plate has one, rear pointing spine. The head and upper body are pale red with yellowish green spots, the lower body is whitish. The fins are largely whitish with 2 dusky bands on the pectoral fin. There are between 6 and 8 spines in the first dorsal fin and between 18 and 21 soft rays in the second dorsal fin while the anal fin has 18-19 soft rays. This species reaches a maximum published length of 9 cm (3.5 in). [1]

Distribution and habitat

Heminodus philippinus has been sited by Japan, Indonesia, the Philippines, the South China Sea, and the Andaman Coast of India. [6] [7] This is a deep water demersal fish living at depths between 200 and 500 m (660 and 1,640 ft) on the continental shelf and slope. [1]

Related Research Articles

Triglidae Family of fishes

Triglidae, commonly known as gurnards or sea robins, are a family of bottom-feeding scorpaeniform ray-finned fish. The gurnards are distributed in temperate and tropical seas worldwide.

Peristediidae Family of fishes

Peristediidae, the armored sea robins or armoured gurnards, is a family of ray-finned fishes belonging to the suborder Platycephaloidei in the order Scorpaeniformes. They are found in the deep water in the tropical and warm temperate of the world's oceans.

<i>Chelidonichthys</i> Genus of fishes

Chelidonichthys, the smallscaled gurnards, is a genus of marine ray-finned fishes belonging to the family Triglidae, the gurnards and sea robins. These gurnards are found in the Eastern Atlantic, Indian and Western Pacific Oceans.

Spiny red gurnard Species of fish

The spiny red gurnard is a species of marine ray-finned fish belonging to the family Triglidae, the gurnards and sea robins. This species is found in the northwestern Pacific Ocean where they occur at depths of from 25 to 615 metres. This species grows to a length of 40 centimetres (16 in) TL. This species is of commercial importance as a food fish.

<i>Bellator egretta</i> Species of fish

Bellator egretta, the streamer searobin, is a species of marine ray-finned fish belonging to the family Triglidae, the sea robins. This fish is found in the western Atlantic Ocean.

<i>Lepidotrigla</i> Genus of fishes

Lepidotrigla is a genus of marine ray-finned fishes belonging to the family Triglidae, the gurnards and sea robins. These gurnards are found in the Eastern Atlantic, Indian and Western Pacific Oceans.

Piper gurnard Species of fish

The piper gurnard, also known as the piper or the lyre gurnard, is a species of marine, demersal ray-finned fish from the family Triglidae, the gurnards and sea robins. It is found in the eastern Atlantic Ocean and the Mediterranean Sea. It is the only species in the monotypic genus Trigla.

Red gurnard Species of fish

The red gurnard, also known as the East Atlantic red gurnard or soldier, is a benthic species of ray-finned fish belonging to the family Triglidae, the gurnards and sea robins. This fish is found in the eastern Atlantic Ocean, including the Mediterranean Sea and the Black Sea.

Jaggedhead gurnard Species of fish

The jaggedhead gurnard is a species of marine ray-finned fish belonging to the family Peristediidae, the armoured gurnards or armored searobins. This species is found in the eastern Indian Ocean and the western Pacific Ocean. It is the only known member of its genus.

Bovitrigla is a monotypic genus of marine ray-finned fishes belonging to the family Triglidae, the gurnards and sea robins, one of two genera belonging to the subfamily Pterygotriglinae. Its only species, Bovitrigla acanthomoplate, is found in the western Pacific Ocean>

Streaked gurnard Species of fish

The streaked gurnard, also known as the African gurnard or rock gurnard, is a species of ray-finned fish belonging to the family Triglidae, the gurnards and sea robins. This fish is found in the eastern Atlantic Ocean and western Indian Ocean. This species is of commercial importance as a food fish.

The longfin gurnard, the long-finned gurnard or shining gurnard, is a species of ray-finned fish belonging to the family Triglidae, the gurnards and sea robins. This fish is found in the eastern Atlantic Ocean, including the Mediterranean Sea and the Black Sea. This species is of commercial importance as a food fish.

<i>Lepidotrigla kishinouyi</i> Species of fish

Lepidotrigla kishinouyi, the devil sea robin, is a species of marine, demersal ray-finned fish from the family Triglidae, the gurnards and sea robins. It is found in the northwestern Pacific Ocean.

<i>Pterygotrigla arabica</i> Species of fish

Pterygotrigla arabica is a species of ray-finned fish belonging to the family Triglidae, the gurnards and sea robins. This fish is found in the northern Indian Ocean.

Pterygotrigla multiocellata, the antrorse spined gurnard, is a species of ray-finned fish belonging to the family Triglidae, the gurnards and sea robins. This fish is found in the Indo-Pacific region where it has been recorded from Japan, Saipan, and the eastern and western tropical waters off Australia.

<i>Pterygotrigla polyommata</i> Species of fish

Pterygotrigla polyommata, the latchet, butterfly gurnard, flying gurnard, lachet gurnard, pastry, sharpbeak gurnard, spiny gurnard or spinybeak gurnard, is a species of marine ray-finned fish belonging to the family Triglidae, the gurnards and sea robins. It is found in the southeastern Indian and southwestern Pacific Oceans.

Blackspotted gurnard Species of fish

The blackspotted gurnard, also known as the half-spotted gurnard, is a species of marine ray-finned fish belonging to the family Triglidae, the gurnards and sea robins. It is found in the Indo-Pacific region.

Large-scaled gurnard

The large-scaled gurnard is a species of marine, demersal ray-finned fish from the family Triglidae, the gurnards and sea robins. It is found in the eastern Atlantic Ocean and the Mediterranean Sea.

<i>Lepidotrigla papilio</i> Species of fish

Lepidotrigla papilio, the spiny gurnard, butterfly gurnard, Eastern spiny gurnard or Southern spiny gurnard. is a species of demersal marine ray-finned fish belonging to the family Triglidae, the gurnards and sea robins. This species is endemic to Australia.

<i>Lepidotrigla spiloptera</i>

Lepidotrigla spiloptera, the spotwing gurnard, spotfin gurnard or red-fringed gurnard, is a species of marine, demersal ray-finned fish from the family Triglidae, the gurnards and sea robins. It has a wide Indo-Pacific distribution.

References

  1. 1 2 3 4 Froese, Rainer; Pauly, Daniel (eds.) (2022). "Heminodus japonicus" in FishBase. February 2022 version.
  2. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Genera in the family Peristediinae". Catalog of Fishes . California Academy of Sciences . Retrieved 25 June 2022.
  3. ↑ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Heminodus". Catalog of Fishes . California Academy of Sciences . Retrieved 25 June 2022.
  4. ↑ Williams, A.; Last, P.R.; Gomon, M.F. & Paxton, J.R. (1996). "Species composition and checklist of the demersal ichthyofauna of the continental slope off Western Australia (20–35º)". Records of the Western Australian Museum. 18: 135–155.
  5. ↑ Christopher Scharpf & Kenneth J. Lazara, eds. (10 June 2021). "Order Perciformes (Part 12): Suborder Triglioidei: Families Triglidae and Peristediidae". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 23 June 2022.
  6. ↑ Rajeeshkumar, M. P.; Vinu, Jacob; Hashim, M.; Sudhakar, M. (2018-10-01). "First Findings of Rare Fish Heminodus philippinus (Teleostei: Peristediidae) from Indian Waters". National Academy Science Letters. 41 (5): 279–283. doi:10.1007/s40009-018-0671-9. ISSN   2250-1754.
  7. ↑ Toshio Kawai; Hsuan-Ching Ho (2019-12-01). "Records of four species of armored searobins (Teleostei: Peristediidae) from Dongsha Atoll in the South China Sea". Platax. 2019. doi:10.29926/PLATAX.201912_2019.0005.
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