Arius subrostratus   Valenciennes,  1840 (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: FAO

Size: Max length 39.5 cm NG (male/unsexed); common length 12.0 cm TL (male/unsexed)

Color: Body silvery gray on back, lighter below. Fins grayish.

Body elongate; head depressed, the snout elongated. Three pairs of barbels around mouth, all shorter than the head. Median fontanelle groove on top of head narrow, reaching to base of supra-occipital process. Head shield roughly granulated; basal plate before dorsal fin, V-shaped. Teeth in jaws villiform; teeth on palate in one small patch on either side, villiform, each patch oval and equal to eye diameter. Dorsal fin spine strong; tip of dorsal fin often produced into a long filament in juveniles; adipose dorsal fin moderate. Pectoral fin spine as long as dorsal fin spine. Pelvic fins extending to anal fin.

Dioecious, external fertilization, guarders, external brooders. Males incubate the eggs in the buccal cavity.

Synonym (s)
Arius subrostratus Valenciennes 1840
Tachysurus subrostratus Misra 1976
Arius subrostratus Valenciennes 1840
(Senior synonym)
Tachysurus subrostratus (Valenciennes) 1840
(Senior synonym)

Common Name (s)
• Short Nosed Catfish (English)
• Theydoo (Malayalam)
• Shovel Nose Sea Catfish (English)
• Shovelnose Sea Catfish
Economic Importance and Threats
Importance:  Commercial, Dangers

Habitat:  Demersal, Estuarine
Trophic Level:  Secondary Consumer
Prey:  Benthic crustaceans, worms, phytoplankton, detritus


• Tamil Nadu, Chennai INDIA
• Tamil Nadu, Gulf of Mannar INDIA
• Kerala INDIA
• Orissa, Dhamra Estuary INDIA

Literature Source(s)
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Marine Biological Station, Chennai, Tamil Nadu (2003) Checklist of marine fauna of Tamil Nadu Department of Environment, Government of Tamil Nadu Available at -
  • Talwar, PK and Kacker, RK (1984) Commercial sea fishes of India ZSI, Calcutta 997 pp Available at - NIO, Goa
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at -
  • Dutta, SK (2007) Biodiversity assessment of Dhamra port site and surrounding areas, Orissa Greenpeace India 4-38 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:2011-10-13

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