New species of Terschellingia (Nematoda: Linhomoeidae) from the Tamar estuary, England and the Maldive Islands

<jats:p>A new species of free-living marine nematode, <jats:italic>Terschellingia gourbaultae</jats:italic> sp. nov., from the Tamar estuary, south-west England, is described and illustrated. This species has also been recorded from Brittany, France. <jats:italic>T. daviger, sensu</jats:italic> Gerlach (1963) <jats:italic>nec</jats:italic> Wieser (1956) is a junior homonym and is re-named <jats:italic>T. maldivensis</jats:italic> sp. nov. Five <jats:italic>Terschellingia</jats:italic> species including the new species are distinguished by their lack of a distinctly offset, rounded oesophageal bulb; a table and figures are given to aid identification of these species.</jats:p>