Ten New Records of the Reticulate Unicornfish Naso reticulatus Randall, 2001 (Perciformes: Acanthuridae): Distributional Range Expansion along the Southern Coasts of India
The reticulate unicornfish Naso reticulatus Randall, 2001 has been previously reported from Indonesia, Taiwan, Philippines, north-east coast of India and Pakistan. In the present study, ten specimens of N. reticulatus were collected during 2016 and 2017 from four locations in Indian waters covering both east coast (Andhra Pradesh and Tamil Nadu) and west coast (Kerala and Gujarat). A detailed morphological and morphometric description of the specimens is provided. This species is characterised by V + 28–30 dorsal rays, II + 26–28 anal rays, 16–17 pectoral rays, elongate body (body depth 28.1–32.4% in SL in larger specimens and 36.0–38.5% in SL in smaller individuals), angular median interorbital space and reticulated colour pattern on body of larger specimens and absent in smaller individuals which display some irregular white and black patches. This study reports the range extension of N. reticulatus towards the southern coasts of India, suggesting that this species is widely distributed throughout the Indian coast.
KeywordsReticulate unicornfish Naso reticulatus Acanthuridae New records Range extension Indian coast
The authors are highly grateful to Dr. A Gopalakrishnan, Director, ICAR-CMFRI, Cochin for providing all necessary facilities and constant support for performing this study.
Compliance with Ethical Standards
Conflict of Interest
The authors declare that they have no conflict of interest.
This article does not contain any experimental studies with animals performed by any of the authors.
- Bray DJ (2019) Naso reticulatus in Fishes of Australia. http://fishesofaustralia.net.au/home/species/4962. Accessed 21 Jan 2019
- Froese R, Pauly D (eds) (2018) FishBase 2018, version (1 December, 2018). World Wide Web electronic publication. Retrieved from http://www.fishbase.org.
- Hastings PA, Walker HJ Jr, Galland GR (2014) Fishes: A Guide to their Diversity By Philip A. Hastings, H.J. Walker Jr. and Grantly R. Galland, University of California Press, Oakland, California, 2014, GBP 24.95, USD 34.95. ISBN: 978-0-520-27872-1, 311, pp. 187, colour plates (approx. 500 photos), 1. In: Fishes: a guide to their diversity. University of California Press, Oakland, p 311. https://doi.org/10.1111/faf.12138 Google Scholar
- Moazzam M, Osmany HB (2015) Occurrence and morphometry of reticulate unicornfish, Naso reticulatus (Randall, 2001) in Pakistan. Int J Biol Biotechnol 12(2):197–201Google Scholar
- Mohapatra A, Ray D, Yennawar P (2013) First record of Naso reticulatus (Perciformes: Acanthuridae) from Indian waters. Mar Biodivers Rec 6:1–3. https://doi.org/10.1017/S1755267213000341
- Randall JE (2001a) Naso reticulatus, a new Unicornfish (Perciformes: Acanthuridae) from Taiwan and Indonesia, with a key to the species of Naso. Zool Stud 40(2):170–176Google Scholar
- Randall JE (2001b) Acanthuridae. Surgeonfishes (tangs, unicornfishes). In: Carpenter KE, Niem V (eds) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol. 6. Bony fishes part 4 (Labridae to Latimeriidae), estuarine crocodiles. FAO, Rome, pp 3653–3683Google Scholar
- Randall JE (2002) Surgeonfishes of the World.Bishop Museum Bulletin in Zoology, Volume 4.ByJohn E Randall.Honolulu (Hawai’i): Mutual Publishing; Honolulu (Hawai’i): Bishop Museum Press. $18.95. x + 123 p; ill.; index—common and scientific names of fishes. ISBN: 1–56647–561–9. 2001. In: Surgeonfishes of the world. Mutual publishing and bishop museum press. Hawai'i, Honolulu, Hawaii, p 123. https://doi.org/10.1086/382429 Google Scholar
- Secor DH, Dean JM, Laban EL (1992). Manual for otolith removal and preparation for microstructural examination. Technical Publication No. 1991-01, Belle W. Baruch Institute for Marine Biology and Coastal Research, pp 84Google Scholar