Parascyphus simplex (Lamouroux, 1816)

Galea, Horia R., Schories, Dirk, Försterra, Günter & Häussermann, Verena, 2014, New species and new records of hydroids (Cnidaria: Hydrozoa) from Chile, Zootaxa 3852 (1), pp. 1-50 : 43-44

Parascyphus simplex (Lamouroux, 1816)

( Fig. 8 K–M)

Material examined. Corral, Chaihuin/Huiro, lat. -39.95000, long. -73.61667, 10.vii.2012, 5‒ 10 m, sample 03: sterile colony on sponge, stems up to 1.7 cm high (MHNG-INVE-86255).

Remarks. For a description of the trophosome and synonymy, see Vervoort & Watson (2003). The gonothecae were observed only in rare instances [e.g. Bale (1915), Trebilcock (1928), Hodgson (1959), and Watson (2003b)]. Accurate measurements are given by Ritchie (1909), Totton (1930), and Hodgson (1959). Distribution in Chile. The present record from Corral is the first for the country.

World records. Australia, Bass Strait, Tasmania, Gough Island, Vema seamount, South Africa ( Vervoort & Watson 2003).

Figures

FIGURE 8. A ‒ D: Symplectoscyphus unilateralis (Lamouroux, 1824) — stem fragment (A); hydrotheca (B); gonotheca in frontal (C) and lateral (D) views. E ‒ H: Symplectoscyphus sp. — colony fragment (E); hydrotheca in lateral (F) and apical (G) views; gonotheca (H). I, J: Staurotheca jaederholmi Stechow, 1920 — colony fragment (I); gonothecae (J). K ‒ M: Parascyphus simplex (Lamouroux, 1816) — stem fragment (K); hydrotheca (L) and detail of aperture (M). N, O: Halopteris plumosa Galea & Schories, 2012 a—female (N) and male (O) gonothecae. Scale bars: 200 µm (A, B, F, G), 300 µm (C, D, L ‒ O), 500 µm (H, K), 1 mm (E, I, J).