New Species of Microscopic Psammophilic Turbellaria from the Genera Coulterella, Cohenella , and Linella (Plathelminthes, Kalyptorhynchia, Rhynchokarlingiidae) from Lake Baikal

Illustrated descriptions and differential diagnoses of four new species of psammophilous microturbellaria from the genera Coulterella Timoshkin 2004, Cohenella Timoshkin 2004, and Linella Timoshkin 2004 (Kalyptorhynchia, Rhynchokarlingiidae) inhabiting the intertidal zone of Lake Baikal are provided. Short notes on their ecology and distribution are presented. All species have been found in sandy soil at a depth of 1.5–3 m and represent a part of the psammophilic communities of the lake.