Chaetonotus atrox   Wilke,  1954 (Gastrotrich)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Gastrotricha
Class:
Order:Chaetonotida
Family:Chaetonotidae

Description
Size: Length 0.15 mm and maximum width 0.04 mm. Caudal furca 20 µm long.

Body dorsoventrally flattened with distinct head, neck and trunk. Trunk widest in mid-body region. Paired tufts of sensory bristles occur on anterior margin of head. The species belongs to the schultzei group with 9-11 rows of scales with median and lateral spine 10-25 µm long. Caudal furca curved to the interior. The scales are horse-shoe shaped on anterior region of trunk and triangular on posterior region. Spines on scales in the mid-body region are the longest. Pharynx forms 1/3 of the total body length. Oral tube rigged. Anus subterminal on dorsal surface. Ventral ciliation in regular transverse bands.

A single dorsal ovum present in mature specimens.


Synonym (s)

Common Name (s)
Economic Importance and Threats

Ecology
Habitat:  Demersal, Sandy, Muddy, Coastal

Biogeography


• Andaman and Nicobar Islands, Hut Bay (Lat: 10.63) (Long: 92.6) INDIA
• Lakshadweep, Kavaratti INDIA (Record: 06/03/1983)
• Lakshadweep, Minicoy INDIA (Record: 11/03/1983)
• Andaman and Nicobar Islands, Hut Bay INDIA (Record: 18/03/1990)
• Andaman and Nicobar Islands, Great Nicobar, Peemaiah Bay (Lat: 6.75) (Long: 93.63) INDIA
• Andaman and Nicobar Islands, Great Nicobar, Peemaiah Bay (Lat: 7.25) (Long: 93.93) INDIA
• Andaman and Nicobar Islands, Great Nicobar, Bonnet Bay (Lat: 6.75) (Long: 93.63) INDIA
• Andaman and Nicobar Islands, Great Nicobar, Bonnet Bay (Lat: 7.25) (Long: 93.93) INDIA
• Andaman and Nicobar Islands, South Andaman, Aberdeen Bay INDIA
• Andaman and Nicobar Islands, Corbyn's Cove INDIA

Literature Source(s)
  • 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
  • Zoological Survey of India (Eds) (1991) Animal resources of India (Protozoa to Mammalia) ZSI 1-694 Available at - NCL, Pune
  • 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
  • Sealifebase Available at - http://www.sealifebase.org/
  • Rao, GC (1988) Meiofauna of the intertidal sediments on Great Nicobar Journal of the Andaman Science Association Andaman Science Association, Port Blair 4 (2) 89-100 Available at - NIO, Goa
  • Rao, GC (1989) Ecology of the meiofauna of sand and mud flats around Port Blair Journal of the Andaman Science Association Andaman Science Association, Port Blair 5(2) 99-107 Available at - NIO, Goa

Page last updated on:2011-06-27

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