Trichonotus setiger   Bloch and Schneider  1801 (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: Randall, J.E.

Size: 19-22 cm.

Color: In preserved specimens brown. A black spot at hind border of each scale of lateral line may be present. Dorsal, posterior part of anal, and basal half of caudal with many small black edged ocelli, arranged in longitudinal rows on dorsal and anal, in transverse rows on caudal. Head, body, and tail are covered with similar ocelli, but not distinct in the specimens examined (Beaufort and Chapman, 1951). Pectorals and ventrals yellowish, last named dusky brown at tip.

Height 13.4-13.7, 16.6-17.3 in length with caudal. Head 4.6-5.2, 6-6.3 in length with caudal. Eye 6.1-7.2, 1.7-2 in snout. Inter orbital space narrow, one fourth or three eighths of eye. Lower jaw the longer, with a fleshy symphysial knob. Teeth pointed, those of the lower jaw hooked. Head naked, excepting two rows of small scales, starting from corner of mouth, one running obliquely upwards and backwards to behind eye, the other obliquely down and backwards. The membranes between the rays of dorsal and anal deeply incised, the rays somewhat filamentous, especially the anterior ones of the dorsal. In males the first and second detached rays of dorsal are very long and reach on posterior half of dorsal when laid down. Pectorals pointed, as long as post orbital part of head. Ventrals pointed, half length of snout less than head. Males recognized by long dorsal fin rays and large size. Under dorsal fin with 1 or 2 free pterygiophores. Dorsal soft rays (total): 39-41.

Remarks: Values in above description denote proportions.

Synonym (s)
Trichonotus setiger Cuvier and Valenciennes 1837
Trichonotus polyophthalmus Bleeker 1853
Trichonotus setiger Bleeker 1854
Trichonotus setigerus Gunther 1861
Taeniolabrus filamentosus Steindachner 1867
Trichonotus setigerus Gunther 1874
Trichonotus setiger Day 1888
Taeniolabrus cyclograptus Alcock 1890
Trichonotus setigerus Johnstone 1904
Trichonotus setiger Rendahl 1904
Trichonotus setiger Whitley 1927
Trichonotus setiger Giltay 1933
Trichonotus setiger Herre 1936
Taeniolabrus marleyi Smith 1936
Trichonotus setigerus Blegvad 1944

Common Name (s)
• Filamented Sand Eel (English)
Economic Importance and Threats
Importance:  Commercial

Habitat:  Reef Associated
Trophic Level:  Secondary Consumer
Prey:  Zooplankton


• Andaman and Nicobar Islands, Andaman Islands (Lat: 12.5) (Long: 92.75) INDIA
• Kerala, Trivandrum INDIA (Record: 1953)
• Tamil Nadu, Chennai Coast INDIA (Record: 2003)
• Tamil Nadu, Gulf of Mannar INDIA (Record: 2003)
• Andaman and Nicobar Islands, Andamans INDIA (Record: 1951)
• INDIA (Record: 1951)

Literature Source(s)
  • Majumdar, N (1984) On a collection of birds from Adilabad district, Andhra Pradesh Occasional paper no 65 Records of the Zoological Survey of India ZSI 23012 Available at - ZSI, Pune
  • Hussain, SM Brief report on biodiversity in the coastal areas of Pakistan p 113
  • Letourneur, Y; Chabanet, P; Durville, P; Taquet, M; Teissier, E; Parmentier, M; Quero, JC and Pothin, K (2004) An updated checklist of the marine fish fauna of Reunion Island, south-western Indian Ocean Cybium 28(3) 199-216
  • Allen, GR and Mohammed, A (2003) Coral Reef Fishes of Indonesia Zoological Studies 42(1) 26299 Available at - Digital Information Resource Center, Pune.
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at -
  • Kurian, CV (1953) A preliminary survey of the bottom fauna and bottom deposits of the Travancore coast within the 15-fathom line Proceedings of the National Institute of Sciences of India 19 746–775 Available at -
  • Marine Biological Station, Chennai, Tamil Nadu (2003) Checklist of marine fauna of Tamil Nadu Department of Environment, Government of Tamil Nadu Available at -
  • Dr. Ramesh, R; Dr. Nammalwar, P and Dr. Gowri, VS (2008) Database on coastal information of Tamil Nadu Report Submitted to Environmental Information System (ENVIS) Centre, Department of Environment, Government of Tamil Nadu Institute for Ocean Management, Anna University, Chennai, Tamil Nadu. Available at -
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Beaufort, LF and Chapman, WM (1951) The fishes of the Indo-Australian Archipelago A. J. Reprints agency, Karol Bagh, New Delhi 9 484 pp Available at - NIO, Goa

Page last updated on:2009-11-10

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