Hebella scandens

<p>Hydrorhiza reptant on host; hydrothecae long, tubular, directed upwards for first third or half of length then bending sharply outwards and often downwards, lower wall with a deep inflexure but without internal thickening of perisarc; perisarc moderately thick, thinning to margin. Margin transverse, circular, even, with a short outrolled rim; some margins replicated two or three times.</p> <p>Colour: transparent white.</p>

Sumber: Cnidaria

<p>Subtidal, epizoic on other hydroid species.</p>

Sumber: Cnidaria

Distribution in Chile. Calbuco Channel, Reloncaví Sound [Leloup 1974, as H. calcarata (L. Agassiz, 1862)], Los Gemelos, and Canal Williams (present records). World records. Circumglobal (Millard 1975), except for polar seas.

Sumber: New species and new records of hydroids (Cnidaria: Hydrozoa) from Chile

Description (based on our own observations; Boero et al. 1997 a): Hydroid. Colonies stolonal; hydranths with 12 – 16 tentacles; hydrothecae asymmetrical, with perisarcal diaphragm, with smooth to slightly corrugated walls, flared margin, mostly oblique but bent 90 ° when growing over host hydrothecae, pedicels short, smooth or annulated. Gonothecae asymmetrical, with undulated walls, truncated distally, tapering toward base, operculum with 4 opercular flaps, bigger than hydrothecae, on short pedicels, containing up to 4 medusa buds. Habitat type and substrate. Littoral and shelf species found from the tidal level to 120 m depth (García Carrascosa 1981; Templado et al. 1986). Substrate. Algae, epizootic on other hydroids, especially Sertulariidae, sponges, bryozoans, other organisms. Seasonality. May, September (Llobet i Nadal 1987) in the Western Mediterranean; January, February, April – July, November – December (for a review see Bouillon et al. 2004); just March (De Vito 2006; this study) in Salento waters. Reproductive period. No references of fertile material from the Mediterranean. Medusa. Newly released medusa. Bell deep-campanulate, mesoglea thicker at apex, exumbrella evenly covered by nematocysts; manubrium short; mouth with 4 small lips; 4 radial canals; 2 big tentacular bulbs and 6 smaller atentaculate bulbs, 2 perradial and 4 interradial ones; with an adaxial ocellus on each marginal bulb. Cnidome. Microbasic mastigophores.