Den Treek Amersfoort
This small shallow ditch proved to be a good sample location!

 

Landgoed Den Treek-Henschoten

This site is a vast country estate, but accessible for recreation. It is located south of the town of Amersfoort, close to the village of Leusden, in the central area of the Netherlands. It consists mainly of woodland with some heather. My samples come from a small shallow ditch at the edge of a nature reserve which is closed for public. It has a sandy bottom and a thick layer of sediment.

Some interesting species which are found here:

  • Clathrulina elegans
  • Clypeolina marginata
  • Lecythium spinosum
  • Pelomyxa flava
  • Pelomyxa corona
  • Trichamoeba sinuosa
  • Paulinella chromatophora
  • Arcella crenulata
  • Difflugia lanceolata
  • Cucurbitella mespiliformis

Den Treek Amersfoort

Den Treek Amersfoort
The sample location can be reached from the parking lot above left.
Den Treek Amersfoort
View of the ditch.
Den Treek Amersfoort
Recent posts

Lesquereusia gibbosa

L. gibbosa, after Thomas and Gauthier-Lièvre, 1959 Lesquereusia gibbosa Thomas et Gauthier-Lièvre, 1959 Diagnosis: At the base of the neck there is a clear constriction,

Read More »

Lesquereusia extranea

L. extranea, after Thomas and Gauthier-Lièvre, 1959 Lesquereusia extranea Awerintzew, 1906 Diagnosis: Generally, the test resembles that of L. epistomium, but it also presents intermediate

Read More »

Lesquereusia carinata

L. carinata. The two small drawings to the left are after Playfair, 1917, the others after Thomas and Gauthier-Lièvre, 1959. Lesquereusia carinata Playfair, 1917 Diagnosis:

Read More »

Lesquereusia bispiralis

L. bispiralis, after Thomas and Gauthier-Lièvre, 1959 Lesquereusia bispiralis Thomas et Gauthier-Lièvre, 1959 Diagnosis: Neck with two septa. The neck is not cylindrical or conical,

Read More »

Lesquereusia angulata

L. angulata, after Thomas and Gauthier-Lièvre, 1959 Lesquereusia angulata Awerintzew, 1906 Diagnosis: The neck is long and straight and does not taper towards the aperture;

Read More »

Lesquereusia globulosa

L. globulosa, after Thomas and Gauthier-Lièvre, 1959 Lesquereusia globulosa Thomas et Gauthier-Lièvre, 1959 Diagnosis: Main part of the test spherical, not compressed, with a large

Read More »