Description. Small lax colonies to several centimetres high; some colonies fertile. Colonies fasciculated basally, ultimate branches monosiphonic. Hydrothecae numerous, tubular, given off from around branches in fasciculated sections, more or less subalternate on monosiphonic branches. Hydrotheca adherent to branch for more than half of length, abcauline wall variably concave, adcauline wall convex, curving smoothly outwards, free wall shorter than adnate wall. Hydrotheca narrowing basally but without floor. Margin circular, not everted, without replications. Gonothecae large, sausage-shaped, adnate to outer stem tubes, body narrow proximally, becoming tubular, abcauline wall minutely wrinkled, orifice wide, circular, upturned to varying degrees. Perisarc soft and thin throughout, colour (preserved material) grey. Remarks. Without a discernible floor, the length of the hydrothecae is highly variable, making it difficult to provide a precise estimate of length.
Sumber: Bathyal and abyssal hydroids (Hydrozoa, Leptothecata) from southeastern Australia