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Home » Taxon » Cnidaria » Hydrozoa » Hydroidolina » Leptothecata » Lafoeidae » Filellum » Filellum antarcticum - (Hartlaub, 1904)
Taxon
Filellum antarcticum (Hartlaub, 1904)
SUMMARY
Luxuriant colonies.
Hydrothecae delicate, of variable length, arising at various angles from hydrorhiza so thickly that it is difficult to determine the length of one adnate part, but it is not usually more than one quarter of the total length of the hydrotheca. Margin slightly everted, often with 2-3 reduplication; occasionally an earlier reduplication about halfway along hydrotheca coincides with a slight flexure of the thecal wall. Length of free part of hydrotheca, including reduplications, 1.0-1.18 mm; diameter at margin 0.21 mm.