Taxa included

Sierwald, P. (1984). Madagassische Arten der Gattung Thalassius Simon, 1885 (Arachnida: Araneae: Pisauridae). Verhandlungen des Naturwissenschaftlichen Vereins in Hamburg (NF) 27: 405-416.

Taxon
Nilus majungensis (Strand, 1907) (Pisauridae) 409, f. 2-4a (f), Thalassius majungensis
Nilus curtus O. Pickard-Cambridge, 1876 (Pisauridae) 410, (Sm), Thalassius spinosissimus
Nilus esimoni (Sierwald, 1984) (Pisauridae) 411, f. 4b-5 (Df), Thalassius esimoni Original description
Nilus leoninus (Strand, 1916) (Pisauridae) 413, f. 6a-d (Df; removed from S of Thalassius leo), Thalassius leoninus

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