Estonian Enchytraeidae 4. Sublittoral Enchytraeidae (Annelida, Oligochaeta) in the eastern Baltic Sea

Only two enchytraeid species were found to be common and abundant in the sublittoral of the eastern Baltic Sea: a dwarfish form of Lumbricillus lineatus and Marionina naso n. sp., the latter probably belonging to the cool-water "Aglacial relics". Results are based on hundreds of samples from zoobenthos surveys made in the last century, covering the whole area. Descriptions of the two species are given. Several more species (Lumbricillus cf. arenarius, L. buelowi, L. cf. pumilio, Marionina southerni, M. spicula, and unidentified taxa) were found occasionally and in small numbers only.Original Abstract: Too pohineb peamiselt Arvi Jarvekulje 1959.-1981. aastal Laanemerest kogutud pohjaloomastiku-proovidel. Mere sublitoraalis, kuni 70 m sugavuseni, on tavalised kaks valgeliimuklaste liiki: Lumbricillus lineatus (Muller, 1774) vaikesekasvulise vormina ja, eriti ohtrasti, Marionina naso n. sp. On toodud molema kirjeldus. Peale selle on uhes proovis Tallinna lahest leitud L. cf. arenarius, L. buelowi ja M. southerni, kahes proovis Tallinna ning Kolga lahest M. spicula ja Haapsalu lahest L. cf. pumilio; uksikuid liigini maaramata isendeid ka mujalt. M. naso on oletatavasti jaaaja relikt, kuna sigib talvel. Sugavamalt kui 70 m (pseudoabussaalist) vaheharjasusse ei leitud.