Halichoeres margaritaceus   (Valenciennes,  1839) (Fish)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Chordata
Class: Actinopterygii
Order:Perciformes
Family:Labridae

Image copyrights: Randall, J.E.

Description
Size: 10-12.5 cm SL

Color: Females olivaceous on back, the scale edges dark brown, pale ventrally, with whitish blotches of unequal size and a large pink area posteriorly on the abdomen; a black spot on opercular flap, small one behind eye, one at front of dorsal fin and a large one rimmed in yellow or blue in middle of fin; no black spot at upper base of pectoral fins; males green with orange-red spots, some linked to form irregular markings, the white blotches and large pink area on abdomen lost, and the black spots lost or reduced. Males are distinguished by different cheek patterns. In this species, it has a near horizontal pink band below the eye.

Height 3-3.3, 3.7-4 n length with caudal. Head 2.6-3, 3.2-3.7 in length with caudal. Height of head 1.3-1.4 in its length. Eye 4-5, 1.3-1.7 in snout and 1-1.2 in slightly convex interorbital space. Mouth moderate, nearly horizontal, half diameter of eye or less below level of lower border of eye. Maxillary reaching to below anterior nostril. Lips plated, the inner plate crenulated. Teeth pointed, the four anterior ones in the upper jaw canines, the front pair longest and somewhat curved, the outer pair shorter and more curved. Two moderate canines anteriorly in the lower jaw. Head naked, exception above, where the scales begin behind hind margin of eye. About 10 rows of scales before dorsal, these scales much smaller than those of the body. Similar small scales on thorax, immediately behind isthmus. Dorsal spine stiff and pungent, the first about equal to eye, the longest as snout, of about the same length as the longest dorsal rays. Dorsal truncate or slightly rounded behind. First anal spine minute, third longest, somewhat longer than eye. Pectorals about as long as head without snout, ventrals without produced rays, somewhat less than eye and snout together. Caudal rounded.

Remarks: Values in above description denote proportions.


Synonym (s)
Julis margaritaceus Valenciennes, 1839
Julis (Halichoeres) pseudominiatus Bleeker, 1856
Halichoeres pseudominiatus Bleeker, 1862
Platyglossus opercularis Gunther, 1862
Halichoeres opercularis Seale, 1901
Halichoeres opercularis Jordan and Seale, 1906
Halichoeres pseudominiatus Jordan and Seale, 1907
Halichoeres opercularis Jordan and Richardson, 1908
Platyglossus opercularis Gunther, 1909
Halichoeres opercularis Snyder, 1912
Platyglossus pseudominiatus Barnard, 1927
Halichoeres opercularis Whitely, 1926
Halichoeres margaritaceus Fowler and Bean, 1928
Halichoeres margaritaceus Fowler, 1928
Octocynodon margaritaceus Whitely, 1932
Halichoeres opercularis Herre, 1936

Common Name (s)
Economic Importance and Threats
Importance:  Commercial
(Aquarium)

Ecology
Habitat:  Reef Associated,Rocky
Trophic Level:  Secondary Consumer
Prey:  Benthic crustaceans, mollusks, polychaetes, forams, fishes, and fish eggs

Biogeography


• Andaman and Nicobar Islands INDIA

Literature Source(s)
  • 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.
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at - http://www.fishbase.org
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Beaufort, LF (1940) The fishes of the Indo-Australian Archipelago A. J. Reprints agency, Karol Bagh, New Delhi 8 508 pp Available at - NIO, Goa

Page last updated on:2010-04-23

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