Plesiops caeruleolineatus   Ruppell,  1835 (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: The Nature Conservation and Aquatic Sciences Service

Size: 24-69 mm

Color: Variable, generally dark brown to blackish with ventral part of head and belly lighter to slightly bluish. Scales on sides with a blackish blue spot. Spinous dorsal with a hyaline to bluish band, distal part of spinous dorsal and of anterior soft rays pale with a lighter submarginal stripe; rest of the fin dark. Anal with a bluish basal band; anterior half of the fin sometimes narrowly edged white; rest of the fin dark. Caudal dark brown, often with a vertical lighter band at base and a submarginal lighter band. Pectoral pale to brownish. Ventral brownish; basal half of soft rays often with dark spots.

Head 2.7-3.0 in standard length, 3.5-3.9 in total length. Depth of body 2.8-3.4 in standard length, 3.6-4.4 in total length. Eye diameter 3.5-4.2 in head, 0.6-0.7 in snout and 0.5-0.6 in interorbital space. Dorsal profile of head almost uniformly convex. Maxillary reaching to behind eye, 1.8-2.0 in head. Preoperculum with 3-4 series of scales. Dorsal fin spines increasing in length gradually to the last; membrane between spines deeply incised. Third anal fin spine longest. Pectoral fin about 1/3 eye diameter longer than postorbital length of head; 6-8 lower rays with silk-like filaments. Ventral fin longer than head, the first ray reaching behind origin of anal fin. Lateral line slightly arched anteriorly and running close to base of dorsal fin and terminating below hind rays. Lower lateral line median and beginning opposite last dorsal fin spines. Teeth in jaws villiform, those at symphysis enlarged; teeth villiform on vomer and palatines. Preoperculum rounded.
Number of spines and rays in the dorsal fin: XI (XII), 7 (8); number of spines and rays in the anal fin: III, 7-8; number of rays in the pectoral fin: 20-22; number of spines and rays in the ventral or pelvic fins: I, 4; number of scale rows along the lateral line: 17-20+10-14; 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+9-10; gill raker count: 3-4+1+8-9.

Remarks: Values in above description denote proportions.

Synonym (s)
Plesiops caeruleolineatus Ruppell, 1835
Plesiops melas Bleeker, 1849
Plesiops nigricans Day, 1878

Common Name (s)
• Kalumas
• Kakkathilathi
• Roundhead
Economic Importance and Threats

Habitat:  Reef Associated


• Lakshadweep, Agatti INDIA
• Lakshadweep, Amini INDIA
• Lakshadweep, Bitra INDIA
• Lakshadweep, Kadamatt INDIA
• Lakshadweep, Kavaratti INDIA
• Lakshadweep, Kilttan INDIA
• Lakshadweep, Minicoy INDIA
• Lakshadweep INDIA
• Red Sea
• Andaman and Nicobar Islands, Great Nicobar Island INDIA (Record: 08/2000-07/2003)
• Lakshadweep, Chettalatt INDIA (Record: 05/01/1987-06/02/1987)
• Lakshadweep, Kadamatt INDIA (Record: 05/01/1987-06/02/1987)
• Lakshadweep, Bitra INDIA (Record: 09/02/1987-25/02/1987)
• Lakshadweep, Bangaram INDIA (Record: 09/02/1987-25/02/1987)
• Lakshadweep, Agatti INDIA (Record: 09/02/1987-25/02/1987)

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
  • Allen, GR and Mohammed, A (2003) Coral Reef Fishes of Indonesia Zoological Studies 42(1) 26299 Available at - Digital Information Resource Center, 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 -
  • Rajaram, R; Srinivasan, M; Khan, SA and Kannan, L (2004) Ichthyofaunal diversity of great Nicobar Island, Bay of Bengal Journal of Indian fisheries association 31 13-26 Available at - NIO, Goa
  • Kumaran, M; Murty, VS and Lalmohan, RS (1989) Resources of ornamental fishes Marine living resources of the union territory of Lakshadweep: An indicative survey with suggestions for development Bulletin of Central Marine Research Institute CMFRI 43 46-64 Available at -
  • 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:2011-10-17

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