(Hrabe, 1970)
Description
Medium-sized pink worms. Prostomium roundish. External secondary annulation beginning from IV. Chaetae two per bundle, sigmoid with nodulus, simple-pointed. Male pores in X, spermathecal pores in IX. Clitellum in IX-XIII(XIV). Chloragogen tissue beginning on oesophagus from VI. Intestine dilating abruptly in XV-XVI. Postclitellar lateral blind vessels, two pairs per segment, either simple or bifurcated. Length (known in vivo only) 35-50 mm, maximum diameter 1.1 mm, segment number up to 105. Differing from Stylodrilus lemani in less branched posterior lateral vessels, from the other congeners known in NWE, in simple-pointed chaetae, and from the species of Trichodrilus with similar simple chaetae, in the position of spermathecae before male pores, in IX.
Burrowing in sediment.
Distribution
Central Europe.
Ecology
In freshwater, rare.
Reproduction
Sexual only. Eggs laid in cocoons.
Literature
Hrabe, 1970: 302-308, Figs 38-45; Kasprzak, 1981: 194-195, Figs 774-780.