Oncholaimus brachycercus   de Man,  1889 (Marine Worm)
Organism information awaits expert curation
Class: Adenophorea

A-Male head; B-Male tail(ventral); C-Male tail(lateral); D-Female tail

Size: Length 3.0 - 3.5 mm. Tail 1.4 anal diameters long.

Cuticle smooth and transparent. Head diameter 52 µm. Lips, labial papillae and buccal teeth prominent. Buccal cavity deep and wide, with heavily cuticularized walls. Ten cephalic setae 0.15 head diameter wide present. Amphid width about 1/3 of the corresponding body diameter. Few scattered cervical setae present. Excretory pore about 3 head diameters from anterior end. Tail short and conical, with a spinnert. Two small ventral bumps near the tail tip, each with a pair of short setae. Cement glands well developed with long ducts. Spicule in male 120 µm or 2.2 anal diameters long. Gubernaculums obscure. About ten preanal and postanal setae present. Spicules fairly straight, distal half dilated. Ovary single, anterior, reflexed.

Synonym (s)
Oncholaimus brachycercus de Man, 1889

Common Name (s)
Economic Importance and Threats

Habitat:  Sandy, Coastal


• Lakshadweep, Kavaratti INDIA (Record: 02/02/1987)
• Lakshadweep, Agatti INDIA (Record: 07/02/1987)
• Andaman and Nicobar Islands, Harmindar Bay INDIA (Record: 25/03/1990)
• Andaman and Nicobar Islands, Sound Island INDIA
• Andaman and Nicobar Islands, Long Island INDIA

Literature Source(s)
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Rao, GC (1991) Meiofauna State fauna series 2: Fauna of Lakshadweep ZSI, Calcutta 41-135 Available at - NIO, Goa
  • Rao, GC (1993) Littoral meiofauna of Little Andaman Records of the Zoological Survey of India. Occasional paper no. 155 ZSI, Calcutta 120 pp Available at - NIO, Goa
  • Rao, GC (1989) On some free living marine nematodes of the Bay Islands Journal of the Andaman Science Association Andaman Science Association, Port Blair 5(1) 1-22 Available at - NIO, Goa
  • Platt, HM and Warwick, RM (1983) Free living marine nematodes part I British enoplids Linnean society of London and the estuarine and brackish-water sciences association 28 307pp Available at - NIO, Goa

Page last updated on:2011-08-25

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