Protodilus indicus   Aiyar and Alikunhi  (Marine Worm)
Organism information awaits expert curation
Class: Polychaeta
Order:Polychaeta incertae sedis

Size: Length 2.0 – 3.0 mm and width 0.06 mm. Tentacles 0.25 mm long.

Body transparent and attenuated posteriorly. Number of segments varies between 20 and 30. Cuticle thin and devoid of external ornamentation. Hypodermal glands few and spindle-shaped. Head not swollen, indistinct, with 2 long cephalic tentacles, 2 statocysts and 4 incomplete ciliary bands. Eyes absent. Nuchal organs conspicuous behind the tentacles as linear depressions with bunches of long cilia. Pygidium deeply bifurcated with 2 long adhesive anal lobes. Ventral groove is deep. Macrotype nephridia develop from second segment backwards. Sexes separate. Gonads develop from tenth segment backwards.

Synonym (s)
Protodilus indicus Aiyar and Alikunhi 1944

Common Name (s)
Economic Importance and Threats

Habitat:  Sandy, Coastal


• Lakshadweep, Kavaratti INDIA (Record: 20/02/1983)
• Lakshadweep, Kavaratti INDIA (Record: 19/03/1983)
• Lakshadweep, Agatti INDIA (Record: 7/2/1987)
• Lakshadweep, Bangaram INDIA (Record: 10/2/1987)
• Lakshadweep INDIA
• Andaman and Nicobar Islands, Andaman Islands INDIA

Literature Source(s)
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Rao, GC (1991) Meiofauna State fauna series 2: Fauna of Lakshadweep ZSI, Calcutta 41-135 Available at - NIO, Goa

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