Anadichadena binoyi     (Marine Worm)
Organism information awaits expert curation
Class: Trematoda

Image copyrights: Government of India

Length: 0.99-1.32 mm.
Width: 0.32-0.41 mm.

Body small, pointed posteriorly; ecsoma absent. Tegument smooth. Ventral sucker preequatorial, 0.16-0.19 mm in diameter, globular situated at 0.30-0.38 from anterior end of body. Oral sucker terminal, 0.06-0.09 mm long, 0.09-0.10 mm wide, smaller than ventral sucker. Sucker ratio 1:2.05.

Prepharynx absent; pharynx 0.05-0.07 mm long, 0.05-0.06 mm wide; oesophagus 0.02-0.04 long followed by intestinal bifurcation. Intestinal caeca extending up to posterior end of body.
Testes two; anterior testis 0.07-0.08 mm long, 0.07-0.11 mm wide; posterior testis 0.06-0.10 mm long, 0.06-0.07 mm wide. Seminal vesicle saccular, pre-testicular; pars prostatica long, tubular, surrounded by prostate gland cells, ejaculatory duct joining metraterm to form hermaphroditic duct, enclosed in a hermaphroditic sac. Genital atrium opening laterally near intestinal bifurcation.
Ovary 0.08-0.10 mm long, 0.06-0.07 mm wide, smooth, post-testicular. Receptaculum seminis present, post-ovarian. Vitellaria compact, consisting of seven rosette-shaped lobes, post-ovarian. Uterus not reaching posterior end of body.
Eggs 12-16 µm x 8-12 µm.
Excretory vesicle 'y' shaped, arms united dorsal to pharynx.

Synonym (s)

Common Name (s)
Economic Importance and Threats



• Orissa, Chilika Lake INDIA

Literature Source(s)
  • Dutta, IB (1995) Platyhelminthes: Trematoda: Digenea Wetland ecosystem series 1: Fauna of Chilka lake ZSI, Calcutta 235-277 Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -

Page last updated on:2010-10-06

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