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Naso reticulatus (Randall, 2001)
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Naso reticulatus (Randall, 2001)
  • Photo. (c) 2021 John Nevill
  • Photo. (c) 2021 John Nevill.
  • Photo. (c) 2021 John Nevill
Genus: ,

Scientific Name: Naso reticulatus

English Name: Reticulate unicornfish

Creole Name: Korn

French Name:

IUCN Red List Status: Data Deficient (DD)



Information

Description:

Dorsal spines: 5; Dorsal rays: 29; Anal spines: 2; Anal rays: 27; pectoral rays 17.

No horn or protuberance on forehead or snout. Dorsal profile of head convex with a slight hump before the eye. Anterior interorbital space and adjacent internarial space 
strongly elevated with a rounded median ridge. Body depth 3.1-3.2 in SL. Dorsal fin not elevated, first dorsal spine longest. Caudal peduncle slender, sub-cylindrical, 
with 2 keeled peduncular plates on each side, the keels not large and antrorse. Caudle fin emarginate without filaments.

Colour. Body light brown to olive-brown dorsally, fading to whitish ventrally. The upper 3/5 of body with a mixture of small dark brown to black spots and irregular lines. 
Head with a dark reticular pattern. Opercula membrane black. Median fins dark grey-brown, anal fin with a white margin. Pectoral fins pale grey, becoming darker posteriorly. 
Caudal fin with dark brown to black spots and lines.
 


Size:

Maturity: Lm unknown. Range unknown. Max Length: 49cm SL.
 


Habitat and Ecology:

Reef-associated (depth 15 - ? m). There is little known about the biology and life history characteristics of this species.


Fishery Status:

This species is not protected or subject to fishery regulations. It is caught in the hand line fishery, but is a rare component of the catch. 


Notes:

Since its description by Randall in 2001, the range of this species has been recorded progressively further westward (Mohaptra et al. 2013, Moazzam & Osmany 2015, 
Roul et al. 2019). The author first recorded this species in the Seychelles artisanal catch in 2016 and twice more in 2018, with a few subsequent records. It does 
however appear to be a rare species in the catch. This therefore constitutes a new species record for Seychelles and a significant range extension for Naso reticulatus.


References:

Bray, D.J. (2019). Naso reticulatus in Fishes of Australia, https://fishesofaustralia.net.au/home/species/4962 (08/08/21).
Froese, R. & D. Pauly. Eds. (2021). FishBase. Naso reticulatus. https://www.fishbase.de/summary/Naso-reticulatus.html (08/08/21).   
Moazzam,M. & Osmany, H.B. (2015). Occurrence and morphometry of Reticulate unicornfish, Naso reticulatus (Randall, 2001) in Pakistan INT. J. BIOL. BIOTECH. 12 (2):197-201,2015.
Mohaptra, A. et al. (2013). First record of Naso reticulatus (Perciformes: Acanthuridae) from Indian waters. Marine Biodiversity Records, page 1 of 3. doi:10.1017/S1755267213000341; Vol. 6; e56.  
Randall, J.E. (2001).  Naso reticulatus, a New Unicornfish (perciformes: Acanthuridae) from Taiwan and Indonesia, with a Key to the Species of Naso.  Zoological Studies 40(2): 170-176 (2001).
Randall, J.E. (2001). Surgeonfishes of Hawaii and the World. ISBN: 1-56647-561-9   
Roul, S.K. et al. (2019).  Ten New Records of the Reticulate Unicornfish Naso reticulatus Randall, 2001 (Perciformes: Acanthuridae): Distributional Range Expansion along the Southern Coasts of India 
Russell, B. et al. (2012). Naso reticulatus. The IUCN Red List 2012: e.T177954A1501681. https://dx.doi.org/10.2305/IUCN.UK.2012.RLTS.T177954A1501681.en. (08/08/21).


Citation:

Nevill, J.E.G. (2021). Naso reticulatus, Reticulate unicornfish. Seychelles Seatizens. www.seatizens.sc https://seatizens.sc/species/naso-reticulatus-randall-2001/ (edited 16/06/22).


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