Ptycholaimellus ponticus   (Filipjev,  1922) (Marine Worm)
Organism information awaits expert curation
Class: Adenophorea

A-Male tail; B-Male head; C-Oesophageal bulb

Size: Length 0.8-0.95 m (female); max diameter 25-30 µm (female)

Body slender and attenuating towards ends; Cuticle annulated with two files of large lateral dots; lateral files raised with longitudinal rows of coarse dots; four longer cephalic setae 7-10 µm in length; four files of short setae down boby length, each situated slightly median to the longitudinal files of cuticle dots. Amphids transverse slits immediately posterior to cephalic setae. Buccal cavity with large strongly cuticularised S-shaped dorsal tooth and a dorsal apophysis. Oesophagus swollen dorsally at anterior end around dorsal tooth with an elongate double posterior bulb. Tail tapering; with distinct spinneret. Ovaries opposite, reflexed, anterior ovary to the right of intestine and posterior ovary to the left. Spicules measured as a curve, arcuate, cephalate proximally. Guberaclum 19-22µm. Prelocal supplements absent.

Synonym (s)

Common Name (s)
Economic Importance and Threats

Habitat:  Estuarine


• Tamil Nadu, Pichavaram Mangrove (Lat: 11.45) (Long: 79.78) INDIA (Record: 28/01/2002) (Depth: 0.1 mts)
• Tamil Nadu, Pichavaram INDIA
• Tamil Nadu, Parangipettai Coast INDIA

Literature Source(s)
  • Chinnadurai, G and Fernando, OJ (2007) Meiofauna of mangroves of the southeast coast of India with special reference to the free-living marine nematode assemblage Estuarine Coastal and Shelf Science 72 329-336
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Chinnadurai, G and Fernando, OJ (2006) New records of free-living marine nematodes from India Records of the Zoological Survey of India Zoological Survey of India 106(4) 45-54 Available at -
  • Platt, HM and Warwick, RM (1988) Free living marine nematodes part II British chromadorids Linnean society of London and the estuarine and brackish-water sciences association 38 502 pp Available at - NIO, Goa

Page last updated on:2011-08-19

Back to Search