- Photo. (c) 2021 John Nevill
- Photo. (c) 2021 John Nevill.
- Photo. (c) 2021 John Nevill
Scientific Name: Naso reticulatus
English Name: Reticulate unicornfish
Creole Name: Korn
IUCN Red List Status: Data Deficient (DD)
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.
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.
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.
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.
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).
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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