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Two new species of the genus Iotonchus and Coomansus zschokkei (Menzel, 1913) are described and illustrated. Iotonchus uisongensis sp. nov. is 1.5-1.6mm long, a=23.0-26.0, b=2.8-3.2, c=17.1-19.4 (female) and 19.6-23.0 (male), V=67.0-73.0, buccal cavity=52.0-63.0 x 31.0-36.5 µm, spicule 75.0-92.0 µm long, ventromedian supplements papillae 20-22 in numbers, and is characterized by having not protruded...
Morphometric variability was studied in Prionchulus punctatus and Clarkus papillatus from closely related forest sites: Site 1 (eutrophic to calcic mull humus), site 2 (contiguous to site 1, eutrophic mull humus with a more or less leached soil), site 3 (acid mull humus), site 4 (located in site 3 but just under the crown of an old oak, moder humus), site 7 (moder humus, developed in a wide area)...
A new and four known species of mononchs are described from Cameroon. Mylonchulus vulvalatus sp. nov. has 1.24-1.48 mm long body; a = 30-33; b = 3.5-4.0; c = 25.5-27.8; V = 59-60; buccal cavity 27-29 x 16-17 µm and is characterized by its blister-like vulval region. It is closely related to M. brachyuris (Bütschli, 1873) Altherr, 1953, M. parabrachyuris (Thorne, 1924) Andrássy, 1958 and M. minor (Cobb,...
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