Descriptions of Eumonhystera borealis n. sp., Sphaerolaimus occidentalis n. sp., and a Redescription of S. gracilis de Man 1876 (Nemata) from Bothnian Bay, Baltic Sea

The free-living nematodes Eumonhystera borealis n. sp., Sphaerolaimus occidentalis n. sp., and S. gracilis de Man 1876 from Bothnian Bay in the northern Baltic Sea are described and illustrated. Eumonhystera borealis n. sp. differs from other species by its small body size (314-393 mum), narrow body...

Ausführliche Beschreibung

Bibliographische Detailangaben
Veröffentlicht in:Journal of nematology. - 1969. - 29(1997), 1 vom: 09. März, Seite 65-81
1. Verfasser: Turpeenniemi, T A (VerfasserIn)
Format: Aufsatz
Sprache:English
Veröffentlicht: 1997
Zugriff auf das übergeordnete Werk:Journal of nematology
Schlagworte:Journal Article Baltic Sea Eumonhystera borealis n. sp. Menhystrella anophthalma Sphaerolaimus gracilis Sphaerolaimus occidentalis n. sp. ecology feeding behavior intersex nematode mehr... new species predator race redescription scanning electron microscopy taxonomy transmission electron microscopy
Beschreibung
Zusammenfassung:The free-living nematodes Eumonhystera borealis n. sp., Sphaerolaimus occidentalis n. sp., and S. gracilis de Man 1876 from Bothnian Bay in the northern Baltic Sea are described and illustrated. Eumonhystera borealis n. sp. differs from other species by its small body size (314-393 mum), narrow body (a = 37-49), and large anterior amphids. In Sphaerolaimus occidentalis n. sp. the amphids are posterior to the buccal cavity, and it differs from other similar species by having two sclerotized rings in the posterior part of the buccal cavity. An intersex is reported for S. gracilis. Sphaerolaimus gracilis is cannibalistic or a predator of other species, with a preference for E. borealis n. sp. Sphaerolaimus occidentalis n. sp. coexists with S. gracilis at depths of 80 m but not at 12 m
Beschreibung:Date Completed 14.07.2011
Date Revised 20.10.2021
published: Print
Citation Status PubMed-not-MEDLINE
ISSN:0022-300X