Inimicus sinensis

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Inimicus sinensis
Inimicus sinensis.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Scorpaeniformes
Family: Scorpaenidae
Genus: Inimicus
Species:
I. sinensis
Binomial name
Inimicus sinensis
(Valenciennes, 1833)
Synonyms [2]
  • Pelor sinenseValenciennes, 1833

Inimicus sinensis, also known as the spotted ghoul, Chinese stinger, spotted stingerfish, or spotted stonefish, is a member of the Inimicus genus of venomous fishes. It is a member of the Synanceiidae (devilfishes, goblinfishes, and stonefishes) family of the Scorpaeniformes order of ray-finned fishes. These benthic fishes are found on sandy or silty substrates of lagoon and seaward reefs, in coastal regions of tropical oceans. [3] Like all the other known species of Inimicus, I. sinensis is a demersal ambush predator. They are nocturnal, and often dig themselves partially into the sandy seabed during the day.

Contents

Geographic distribution

Indo-Pacific: Indian Ocean to Taiwan, Philippines, Indonesia, the Arafura Sea and Western Australia.

Physical description

I. sinensis adults can attain a body length of up to 26 centimeters in length. The body color is red or sandy yellow with light blotches, and very similar to that of the surrounding sandy or coral seabed in which they are found. This coloration acts as a camouflage which renders them extremely difficult to detect in their natural habitat. The skin is without scales except along the lateral line, and is covered with venomous spines and wartlike glands which give it a knobby appearance. The head is flattened, depressed and concave. The eyes, mouth and nostrils project upwards and outwards from the dorsal aspect of the head. Sexual dimorphism is not believed to occur in this species.

Fin morphology:

Behavior

I. sinensis is a piscivorous ambush predator. It is nocturnal and typically lies partially buried on the sea floor or on a coral head during the day, covering itself with sand and other debris to further camouflage itself. It has no known natural predators. When disturbed by a scuba diver or a potential predator, it fans out its brilliantly colored pectoral and caudal fins as a warning. Once dug in, it is very reluctant to leave its hiding place. When it does move, it displays an unusual mechanism of subcarangiform locomotion---it crawls slowly along the seabed, employing the four lower rays (two on each side) of its pectoral fins as legs. [5] [6] [7] [8]

See also

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References

  1. Motomura, H.; Matsuura, K. & Khan, M. (2018). "Inimicus sinensis". IUCN Red List of Threatened Species . 2018: e.T114179505A116265823. doi: 10.2305/IUCN.UK.2018-2.RLTS.T114179505A116265823.en . Retrieved 8 April 2022.
  2. Froese, Rainer; Pauly, Daniel (eds.) (2022). "Inimicus sinensis" in FishBase. February 2022 version.
  3. K.J. Sainsbury, P.J. Kailola and G.G. Leyland (1985). Continental shelf fishes of the northern and north-western Australia. Canberra, Australia: CSIRO Division of Fisheries Research; Clouston & Hall and Peter Pownall Fisheries Information Service.
  4. Mandritsa, S.A. (1991). "New species of the genus Inimicus (Scorpaeniformes, Synanceiidae) from the Coral sea". J. Ichthyol . 31 (2): 76–79.
  5. 1 2 William A. Gosline (July 1994). "Function and structure in the paired fins of scorpaeniform fishes". Journal Environmental Biology of Fishes . 40 (3): 219–226. doi:10.1007/BF00002508. hdl: 2027.42/42637 .
  6. 1 2 3 World Database of Marine Species: Spiny devil fish Archived 2012-03-04 at the Wayback Machine . Accessed 03-22-2010.
  7. 1 2 Scott Michael (Winter 2001). "Speak of the devil: fish in the genus Inimicus" (PDF). SeaScope. 18. Archived from the original (PDF) on 2011-07-13. Retrieved 2010-03-27.
  8. 1 2 WetWebMedia.com: The Ghoulfish/Scorpion/Stonefishes of the Subfamily Choridactylinae (Inimicinae), by Bob Fenner. Accessed 03-27-2010.