Andamia heteroptera   (Bleeker,  1857) (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: Randall, J.E.

Size: 6.4 cm.

Coloration: In Male top head more or less uniformly brown. Bulging cheeks, sides of head, area under eye, snout and upper lip variously and thickly marked with round and elongate dark spots on light background. Lower lip, sucker and throat pale and unmarked, as are ventral fins and ventral surface of body. Body dark above, light below, liberally applied with more or less vertical intrusions of light color up on sides in from of numerous irregular, vermiculate lines that, toward caudal peduncle, break up into spots. No indication of regular vertical dark bands on body. Dorsal fin nearly black, with no markings except for narrow, silvery line ascending along following edge of each ray and spine. Caudal a little lighter basally but black distally, opaque, and without markings. Anal narrowly pale basally but otherwise black except for free tips, which are light. Base of pectoral thickly spotted with dark, like adjacent cheek, and these spots infringe on base of rays and cover dorsal third of fin. Other than this the fin is uniformly reddish brown and opaque. In Female much more sombre than male. Top and side of head, snout and body chocolate brown often with little indication of spots or markings. Throat, pelvics and ventral surface of body, while lighter than above, not strongly contrasting. Base of pectoral and upper third of fin spotted as in male, but dully. A light streak behind each dorsal spine and ray, but dark and light not strongly contrasting. Rays of caudal chocolate brown, but membrane clear and translucent. Anal entirely unpigmented and membrane translucent.

No crest on head in either sex. Nasal cirrus simple, pointed, and scarcely longer than diameter of nasal pore. Supra orbital cirrus about equal to diameter of eye in length, pointed, one or two small filaments on inner side and three or four large ones on outer side. Snout evenly rounded and a little longer than diameter of eye. Head greatly flattened with cheeks bulging out as hemispheres, depth of head about 1/2 its breadth. Inter orbital space 2/3 to 4/5 diameter of eye and deeply concave, the deepest point a broad pit behind eyes with a median groove running from this pit to base of dorsal and the top of head bulging on either side of this groove. Eyes projecting outline to extent of half diameter of eye. Upper lip irregularly but strongly crenulate for whole length. Lower lip also crenulate, but even more irregularly than upper lip. A thin flap of skin extending back from lip to a length equal to diameter of eye and a breadth equal to lower lip, its posterior edge curled downward so that it, with the swollen edge of the lower lip, forms a crude suction pad. Depth of body 7.7 to 8.5. Length of head 5.6 to 6.0. Dorsal fin differing between sexes. Male: Edges of membrane of spinous part a little lower than that of soft part, but tips of spines extending far beyond membrane; first shortest, extending only half its length beyond membrane, second longest being nearly twice depth of body in length and having outer three-fourths of its length free from fin membrane, third considerably shorter than second fourth and remaining spines a little shorter than third and all of about same length with result that actual height of spinous dorsal is somewhat higher than soft dorsal and membrane between spines is excised to a depth of 1/4 the length of the spines. No actual notch between spinous dorsal. Female: All dorsal spines approximately the same length (about half depth of body) with only tips free from membrane. Soft dorsal higher than spinous with a distinct jog, but no notch. Longest rays of female soft dorsal 1 1/3 height of body and proportionately a little lower than in male. Last ray completely free from caudal in both sexes. Half of anterior edge of each anal ray free of fin membrane in male, 2/3 in female. Longest anal ray 2/3 depth of body in male, 1/2 in female. Anal spines of male distinct and only a little shorter than first ray. Both spines involved in the bulbous genital papilla of female, second only 1/3 length of first ray, only tip of first spine visible. Tips of 12 principle caudal rays protruding from evenly rounded border of fin; lower 3 rays noticably thickened; caudal 1/3 longer than head in male, 1/5 longer than head in female. Longest pectoral ray equaling length to head, the fin rounded with the lower three rays somewhat thickened. First two ventral rays strongly thickened, stubby (the second, the longest, equal 4/5 post orbital length of head); inner two rays, while only half the thickness of outer two, still large and apparent and not folded under two heavy rays as is usual in other Blenniidae having four ventral rays. The two inner rays only a little shorter than second ray, and in the female the third ray is even a little longer than the second.

Remarks: Values in above description denote proportions.

Synonym (s)
Salarias heteropterus Bleeker, 1857
Andamia expansa Blyth, 1859
Andamia expansa Day, 1869
Alticus heteropterus Bleeker, 1869
Andamia expansa Day, 1876
Andamia heteroptera Day, 1889
Andamia cyclocheilus M. Weber, 1913
Andamia heteroptera Annandale and Hora, 1925
Andamia heteroptera Mukerji, 1932
Andamia heteroptera Giltay, 1933
Andamia cyclocheilus Herre, 1936
Andamia heteroptera Rao and Hora, 1938
Andamia reyi (non Sauvage) Herre, 1939
Andamia expansa Blyth, 1858
Salarias heteroptera Bleeker, 1857
Salarias heteropterus Bleeker, 1857

Common Name (s)
Economic Importance and Threats



• Andaman and Nicobar Islands, Andaman Islands (Lat: 10) (Long: 93) INDIA
• 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
  • Tikader, BK and Das, AK (1985) Glimpses of animal life of Andaman and Nicobar Islands ZSI, Kolkata 1-170 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.
  • 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
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at -
  • Talwar, PK (1990) Fishes of Andaman and Nicobar Islands: A synoptic survey Journal of the Andaman Science Association Andaman Science Association, Port Blair 6(2) 71-102 Available at - NIO,Goa
  • Rao, GC (1991) Distribution of plants and animals on the rocky sea shores of Andaman and Nicobar Islands Journal of the Andaman Science Association Andaman Science Association, Port Blair 7(2) 30-42 Available at - NIO, Goa

Page last updated on:2011-09-02

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