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Masked spinefoot - Wikipedia

From Wikipedia, the free encyclopedia

Masked spinefoot

Conservation status
Least Concern (IUCN 3.1)^[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Acanthuriformes
Family:	Siganidae
Genus:	Siganus
Species:	S. puellus
Binomial name
*Siganus puellus* (Schlegel, 1852)
Synonyms^[2]
Amphacanthus puellus Schlegel, 1852 Teuthis puella (Schlegel, 1852) Amphacanthus cyanotaenia Bleeker, 1853 Amphacanthus ocularis Thiollière, 1857 Siganus zoniceps Seale, 1906 Siganus sevenlineatus Borodin, 1930 Siganus hexacanthus Barton, 1950 Amphacanthus hexacanthus (Barton, 1950)

The masked spinefoot (Siganus puellus), also known as the masked rabbitfish, bluelined rabbitfish, blue-lined spinefoot, decorated rabbitfish or maiden spinefoot, is a species of marine ray-finned fish, a rabbitfish belonging to the family Siganidae. It occurs in shallow, coral-rich areas of clear lagoons and seaward reefs of the Indo-West Pacific region.

Taxonomy

The masked spinefoot was first formally described in 1852 as Ampacanthus puellus by the German zoologist Hermann Schlegel with the type locality given as Ternate in the Molucca Islands in Indonesia.^[3] The specific name puellus means "a small boy". Schlegel did not explain why he chose that name.^[4]

Description

The masked spinefoot has a compressed body. The depth of its body fits between 2.3 and 2.6 times into its standard length. It has a symmetrical wedge-shaped head with a slightly protruding snout. The front nostril is flanged, the flange growing in to a triangle shaped flap to the rear. There is a recumbent spine to the front of the dorsal fin.^[5] Like all rabbitfishes, the dorsal fin has 13 spines and 10 soft rays while the anal fin has 7 spines and 9 soft rays.^[2] The fin spines are robust and hold venom glands.^[6] The caudal fin is strongly forked, especially in adults, with acutely pointed lobes.^[5] This species attains a maximum total length of 38 cm (15 in), although 25 cm (9.8 in) is more typical.^[2] The upper body is yellow shading to light blue to white on the lower body. It is marked with sinuous blue lines that are vertical towards the head and horizontal towards the tail. These are replaced with blue spots towards the abdomen. There is a broad diagonal black band that runs through the eye and extends from the chin to the nape. Over the eye, this band breaks up into black spots. The colour of the fins is yellow.^[7]

Distribution and habitat

The masked spinefoot has a wide Indo-West Pacific range which extends from the Cocos-Keeling Islands and the outer reefs of northwestern Shelf of Western Australia through Indonesia to the Ryukyu Islands and Kiribati, to southern Great Barrier Reef and New Caledonia. It is found to depths down to 30 m (98 ft)^[1] in the shallow waters of clear lagoon rich in corals and on seaward reefs.^[2]

Biology

Masked spinefoot juveniles school, especially over areas dominated by Acropora branching corals.^[6] The adults live in pairs on the reef, pairing starting at lengths around 7 cm (2.8 in) when they move into deeper water on the reef and near drop offs. The juveniles feed on filamentous algae while the adults feeds on macroalgae and on sponges of the order Monaxonida.^[1] This species produces venom in the spines of its fins.^[2] In a study of the venom of a congener it was found that rabbitfish venom was similar to the venom of stonefishes.^[8]

Hunting

The masked spinefoot is caught by spearfishing and in fish traps and small amounts are regularly found in fish markets.^[5] It makes occasional appearances in the aquarium trade.^[9]

References

^ ^a ^b ^c Carpenter, K.E. & Smith-Vaniz, W.F. (2017) [errata version of 2016 assessment]. "Siganus puellus". IUCN Red List of Threatened Species. 2016: e.T69738690A115470521. doi:10.2305/IUCN.UK.2016-3.RLTS.T69738690A69742619.en. Retrieved 23 July 2020.
^ ^a ^b ^c ^d ^e Froese, Rainer; Pauly, Daniel (eds.). "Siganus puellus". FishBase. June 2021 version.
^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Siganus". Catalog of Fishes. California Academy of Sciences. Retrieved 30 August 2021.
^ Christopher Scharpf & Kenneth J. Lazara, eds. (12 January 2021). "Order Acanthuriformes (part 2): Families Ephippidae, Leiognathidae, Scatophagidae, Antigoniidae, Siganidae, Caproidae, Luvaridae, Zanclidae and Acanthuridae". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 30 August 2021.
^ ^a ^b ^c D.J. Woodland (2001). "Siganidae". In Carpenter, K.E. and Niem, V.H. (eds.). FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Volume 6. Bony fishes part 4 (Labridae to Latimeriidae), estuarine crocodiles, sea turtles, sea snakes and marine mammal (PDF). FAO Rome. p. 3640. ISBN 92-5-104587-9.
^ ^a ^b Bray, D.J. (2018). "Siganus puellus". Fishes of Australia. Museums Victoria. Retrieved 31 August 2021.
^ Mark McGrouther (31 March 2021). "Masked Rabbitfish, Siganus puellus (Schlegel, 1852)". Australian Museum. Retrieved 31 August 2021.
^ Kiriake A; Ishizaki S; Nagashima Y; Shiomi K (2017). "Occurrence of a stonefish toxin-like toxin in the venom of the rabbitfish Siganus fuscescens". Toxicon. 140: 139–146. doi:10.1016/j.toxicon.2017.10.015. PMID 29055787.
^ "Siganus puellus". Saltcorner. Bob Goemans. Retrieved 31 August 2021.

External links

Wikimedia Commons has media related to Siganus puellus.

Photos of Masked spinefoot on Sealife Collection

Taxon identifiers
Siganus puellus	Wikidata: Q1043734 AFD: Siganus_puellus BOLD: 78432 CoL: 6YMTM FishBase: 4617 GBIF: 2390277 iNaturalist: 135218 IRMNG: 10580126 ITIS: 623221 IUCN: 69738690 NCBI: 406531 Observation.org: 596828 OBIS: 273920 Open Tree of Life: 359322 WoRMS: 273920
Amphacanthus puellus	Wikidata: Q109538518 CoL: CYNX GBIF: 5210384 ITIS: 1146199

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