The Small World of Freshwater Gastrotrichs
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Anacanthoderma

  • Body bottle shaped
  • no neck constriction
  • rounded rear end
  • no furca or adhesive tubes
  • naked except for a few spines

Diagnosis

  • Body bottle shaped
  • no neck constriction
  • rounded rear end
  • no furca or adhesive tubes
  • naked except for a few spines


2 Species:


Anacanthoderma paucisetosum

75 ยตm - 85 ยตm
Dorsal scales: 12 - 16 thick, curved, simple and immobile spines; of which 3 dorsally (29-30 ยตm), 9-13 laterally, extending around the posterior end(18-21 ยตm)
Ventral scales: two ciliated bands, united anteriorly, visible dorsally and laterally


Anacanthoderma punctatum

115 ยตm - 120 ยตm
Dorsal scales: two terminal, curved spines (30 ยตm), anus dorsal
Ventral scales: two small cilia tufts
Particularities: insufficiently described, cuticle punctate