Amphogona apicata Kramp, 1957

Galea, Horia R., 2007, Hydroids and hydromedusae (Cnidaria: Hydrozoa) from the fjords region of southern Chile, Zootaxa 1597 (1), pp. 1-116 : 97

Amphogona apicata Kramp, 1957

(fig. 21P, pl. 2P)

Amphogona apicata Kramp, 1957: 59 , pl. 5 fig. 7; 1959: 188, fig. 281; 1961: 252; 1968: 119, fig. 321; Palma et al., 2007: 70, 73.

Material examined. Plankton — off the Huinay Scientific Field Station , 12–13.i.2006, 09.ii.2006, 04.xi.2006, 50–0 m, several medusae ( MHNG INVE 49041 ) .

Type locality. Southern Atlantic and Mozambique Channel .

Description. Umbrella bell-shaped, higher than wide (3.8 mm high and 2.75 mm in diameter), with a distinct apical knob of thick mesoglea; elsewhere, mesoglea thin. With eight radial canals bearing eight gonads in middle part of their upper halves; gonads sac-shaped, pendent. With about 60 short, solid tentacles, borne on nearly indistinguishable marginal bulbs; no statocysts. Velum broad, velar opening wide. Manubrium relatively long, borne on conical peduncle of nearly the same length as manubrium itself; distal end of manubrium projecting slightly below the upper halve of umbrella. Mouth with four lips.

Remarks. Present specimens differ only slightly from Kramp’s (1959, 1968) accounts: he described the gonads as being near the middle points of radial canals while in the present material they are found on upper third of radial canals.

World distribution. This species was recorded from the Strait of Magellan ( Pagès & Orejas 1999), Falkland Islands, South Georgia, Cape of Good Hope, and Mozambique Channel ( Kramp 1959).

Records from Chile. The present material was collected from fjord Comau. Additional records are those of Palma et al. (2007) from the southern channels (between the Gulf of Corcovado and the Pulluche-Chacabuco Channels).