Symplectoscyphus milneanus (d’Orbigny, 1846), d'Orbigny, 1846

Galea, Horia R., Häussermann, Verena & Försterra, Günter, 2009, New additions to the hydroids (Cnidaria: Hydrozoa) from the fjords region of southern Chile, Zootaxa 2019, pp. 1-28 : 14-15

Symplectoscyphus milneanus (d’Orbigny, 1846)

(fig. 3K–L)

Sertularia milneana d’Orbigny, 1846: 26 , pl. 11 figs 6–8.

Sertularella milneana – Hartlaub, 1901a: 39, fig. 18. – Hartlaub, 1905: 639, figs D4–E4. – Nutting, 1904: 98, pl. 24 figs 2–5. – Jäderholm, 1905: 26. – Stepanjants, 1979: 81, pl. 14 fig. 6.

Symplectoscyphus milneanus – Stechow, 1923: 172. – Vervoort, 1972b: 147, figs 46–50. – Blanco, 1976: 46, pl. 5 figs 1–5. – Blanco, 1981: 159, figs 1–7. – El Beshbeeshy, 1991: 215, fig. 54.

Sertularella plana Jäderholm, 1903: 279 , pl. 12 fig. 9, pl. 13 figs 1–2.

Sertularella meridionalis Nutting, 1904: 98 , pl. 23 figs 8–9. – Hartlaub, 1905: 641, fig. G4. – Jäderholm, 1920: 6, pl. 2 fig. 1.

Symplectoscyphus meridionalis – Stechow, 1923: 172. – Blanco, 1967b: 264, pl. 3 figs 1–2.

Symplectoscyphus subarticulatus – Blanco, 1968: 213, pl. 4 figs 1–3 [not Symplectoscyphus subarticulatus ( Coughtrey, 1875) ].

Material examined. Stn. 8 – 23.02.2008, 26 m, A565 ( MHNG INVE 62836): several stems, up to 4.5 cm high, gonothecae present; A580 ( MHNG INVE 62837): several stems and fragments up to 6 cm high, gonothecae present.

Type locality. South Patagonia, probably Bay of Ros, South of Rio Negro, Argentina (see Vervoort 1972b).

Remarks. For a description of this species, we refer to Vervoort (1972b), who also examined, described and figured both the lecto- and paralectotype of Sertularella meridionalis Nutting, 1904 .

World distribution. Magellan Strait ( Nutting 1904), Falkland Islands ( Jäderholm 1905, Vervoort 1972b), Argentina ( Jäderholm 1920, Blanco 1967b, both as S. meridionalis, Vervoort 1972 b), Southwest Atlantic and Magellan Strait ( Vervoort 1972b). For an extensive list of records, see Vervoort (1972b).

Records from Chile. Hanover Island ( Nutting 1904, as S. meridionalis ), Martha Bank ( Jäderholm 1903, as S. plana ), South of Chiloé Island (present study).