Staurotheca jaederholmi Stechow, 1920

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 : 41

Staurotheca jaederholmi Stechow, 1920

(Plate 3F; Fig. 8 I, J)

Material examined. HF13, NE of Canal Adalberto, lat. -48.6875, long. -74.5229, 19.iii.2012, 22.6 m, sample C157: fragmentary fertile colony, largest fragment 8.5 cm high (MHNG-INVE-86253); 19.iii.2012, 22 m, sample C158: a fragmentary fertile colony, largest fragment 15 cm high (MHNG-INVE-86254).

Remarks. For a description of this species and its synonymy, refer to Peña Cantero & Vervoort (2003).

Distribution in Chile. This species occurs from Guaitecas Islands in the North ( Jäderholm 1904), to the Strait of Magellan in the South ( Peña Cantero & Vervoort 2003).

World records. Occurs on the Patagonian Shelf ( Blanco 1981, El Beshbeeshy 2011, both as Selaginopsis dichotoma Jäderholm, 1904 ), as well as in the western Antarctica ( Peña Cantero & Vervoort 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).