Cheilinus diagrammus   (Lacepede,  1801) (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: The Nature Conservation and Aquatic Sciences Service

Size: 151-180 mm

Color: Brown, slightly lighter below, 3-4 white stripes across eye, a white stripe below eye; white streaks on upper part of head. 6-8 narrow blackish oblique lines edged white on lower part of head. Spinous part of dorsal and bases of soft dorsal and anal brownish. Pectoral and ventral hyaline. Caudal hyaline, upper and lower edges with brownish markings.

Head 2.6-2.8 in standard length, 3.2-3.3 in total length. Depth of body 2.8-3.0 in standard length, 3.4-3.6 in total length. Eye diameter 5.5-5.8 in head, 2.2-2.4 in snout and 1.3-1.4 in convex interorbital space. Maxillary reaching to below or slightly behind nostrils. Teeth conical, in a single row in jaws, the anterior two in each jaw canines. Dorsal and anal fins with low scaly sheath. First dorsal fin spine shorter than eye, last spine 1 1/3 of eye diameter. Third anal fin spine longer than second and longer than last spine of dorsal fin. Pectoral fin equal to postorbital length of head, and also to ventral fin.
Number of spines and rays in the dorsal fin: IX, 10; number of spines and rays in the anal fin: III, 8; number of rays in the pectoral fin: ii, 10; number of spines and rays in the ventral fin: I, 5; number of scale rows along the lateral line: 16+9; number of horizontal scale rows usually counted from origin of the dorsal fin to the lateral line and from anal origin to the lateral line: 2+1+6½; gill raker count 6+9.

Remarks: Values in above description denote proportions.

Synonym (s)
Labrus diagramma Lacepede 1802
Cheilinus diagramma de Beaufort 1940
Cheilinus diagrammus Smith 1949

Common Name (s)
• Thokka
• Chavarichoran
• Checklined Wrasse
Economic Importance and Threats



• Andaman and Nicobar Islands, Andaman Islands (Lat: 10) (Long: 93) INDIA
• Lakshadweep, Chettalatt INDIA
• Lakshadweep, Minicoy INDIA
• Lakshadweep INDIA
• Red Sea
• Andaman and Nicobar Islands INDIA

Literature Source(s)
  • Wafar, MVM (2003) Checklists of reef fauna Available at -
  • Rao, DV; Devi, K and Rajan, PT (2000) An account of ichthyofauna of Andaman and Nicobar Islands, Bay of Bengal Occasional paper no 178 Records of the Zoological Survey of India ZSI, Calcutta 1-434 Available at - NCL, Pune
  • Jones, S and Kumaran, M (1980) Fishes of the Laccadive Archipelago The Nature Conservation and Aquatic Sciences Service, Trivandrum, Kerala 760 pp Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Rao, DV; Devi, K and Rajan, PT (1992) Some new records of wrasses ( Family: Labridae) from A&N Islands Journal of the Andaman science association Andaman science association, Port Blair 8(1) 43-46 Available at - NIO, Goa
  • Pillai, PKM and Augustine, SK (2000) A code list of common marine living resources of the Indian seas CMFRI Special Publication No.12 CMFRI 1-115 Available at -

Page last updated on:2011-12-05

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