Plectorhynchus crassispina   Ruppell  (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Size: 35 cm.

Color: In preserved specimens lighter or darker reddish brown, in young specimens the distal part of soft dorsal and anal white. Ventrals darker in their distal part.

Height 1.9-2.2, 2.3-2.6 in length with caudal. Head 2.8-3, 3.4-3.6 in length with caudal. Eye 3.3-3.9 (4.8 in a specimen of 350 mm), 1.2-1.3 in snout (1.9 in a specimen of 350 mm.) and somewhat more than inter orbital space (eye 1.3 in inter orbital space in a specimen of 350 mm.). Mouth somewhat oblique, maxillary reaching to below front border of eye. Small teeth in about three in about three rows in the jaws. Preoperculum rectangular, serrate behind. Dorsal notched. First dorsal spine one third of second, which is about half as long as third. Fourth or fourth and fifth spine longest, slightly more than post orbital part of head. Spines rapidly decreasing in length posteriorly. Spines strong and heteracanth, the membrane between them strongly incised. Soft dorsal rounded, its longest rays scarcely less than longest dorsal spines. Soft anal rounded, about as high as soft dorsal. Pectorals as long as head without snout, Ventrals somewhat longer, their spine equal to post orbital part of head. Caudal slightly rounded.

Remarks: Values in above description denote proportions.

Synonym (s)
Pristipoma nigrum Cuvier and Valenciennes 1830
Pristipoma leucurum Cuvier and Valenciennes 1833
Diagramma crassispinum Ruppell 1837
Diagramma crassispinum Bleeker 1850
Pristipoma nigrum Cantor 1850
Diagramma gibbosus Hombron and Jacquinot 1853
Diagramma crassispinum Gunther 1859
Diagramma affine Gunther
Plectorhynchus crassispina Bleeker 1863
Diagramma crassispinum Kner 1868
Diagramma crassispinum Klunzinger 1870
Diagramma nigrum Day 1870
Diagramma crassispinum Day 1888
Diagramma gibbosum Gunther 1875
Plectorhynchus crassispina Bleeker 1877
Diagramma crassilabre Alleyne and Macleay 1877
Pseudopristipoma leucurum Sauvage 1880
Diagramma affine Klunzinger 1880
Diagramma affine Macleay 1881
Pseudopristipoma leucurum Sauvage 1891
Diagramma unicolor Macleay 1883
Diagramma crassispinum Klunzinger 1884
Plectorhynchus crassispina Steindachner 1902
Plectorhynchus (Euelatichthys) affinis Fowler 1904
Diagramma affine Duncker 1904
Plectorhynchus crassispinus Evermann and Seale 1906
Euclatichthys crassispinus Jordan and Seale 1906
Plectorhinchus crassispinus Fowler and Bean 1927
Plectorhynchus crassispinus Barnard 1927
Plectorhinchus nigrus Fowler 1931

Common Name (s)
Economic Importance and Threats



• INDIA (Record: 1936)

Literature Source(s)
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Weber, M; Beaufort, LF (1936) The fishes of the Indo-Australian Archipelago Print times, Pataudi house, Daryaganj, New Delhi 7 607 pp Available at - NIO, Goa

Page last updated on:2009-10-16

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