Sertularella antarctica Hartlaub 1901

• Main Authors: Galea, Horia R., Häussermann, Verena, Försterra, Günter
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2009
• Subjects: Biodiversity; Taxonomy; Animalia; Cnidaria; Hydrozoa; Leptothecata; Sertulariidae; Sertularella; Sertularella antarctica; Antarc*; Antarctica; Kerguelen Islands
• Online Access: https://doi.org/10.5281/zenodo.6212452; http://treatment.plazi.org/id/525D4C3AFFEFFF8EA285EA5DFC600A7F

Sertularella antarctica Hartlaub, 1901 a (figs 2J–N, 3A–B, tables 1–2) Sertularella unilateralis Allman, 1876: 114. – Allman, 1879: 282, pl. 18 figs 10–11. not Sertularia unilateralis Lamouroux, 1824: 615, pl. 90 figs 1–3 [= Symplectoscyphus unilateralis (Lamouroux, 1824)]. Sertularella antarctica Hartlaub, 1901a: 82, pl. 6 figs 27–28. – Jäderholm, 1903: 283. – Hartlaub, 1905: 650, fig. P4. – Jäderholm, 1905: 32, pl. 13 fig.1. – Blanco, 1963: 170, figs 5–6. – Vervoort, 1972b: 105, figs 32–33. – Stepanjants, 1979: 84, pl. 15 fig. 3. – El Beshbeeshy, 1991: 147, figs 35–36. Sertularia (unilateralis) secunda Allman, 1888: 53, pl. 25 figs 2, 2A, 2B. not Sertularella secunda Kirchenpauer, 1884: 50, pl. 17 figs 7–7A [= Symplectoscyphus secundus (Kirchenpauer, 1884)]. Sertularella allmani Hartlaub, 1901a: 81, pl. 5 figs 12–13, pl. 6 figs 1, 8. – Jäderholm, 1903: 283. – Nutting, 1904: 84, pl. 18 figs 3–6. – Hartlaub, 1905: 649, fig. Q4. – Jäderholm, 1905: 32, pl. 12 fig. 11. Sertularella picta – Millard, 1971: 405, fig. 6A–B [not Sertularella picta (Meyen, 1834)]. Material examined . Stn. 10 – 24.02.2008, 8 m, A521 (MHNG INVE 62835): a single colony composed of several fertile stems, on weed. Type locality . Swain’s Bay, Kerguelen Islands. Description . Stems up to 2 cm high, arising from creeping, branching, and anastomozing stolon; the latter strongly flattened, firmly adhering to substrate (not shown). Perisarc yellowish-brown basally, grading to nearly transparent distally; thick throughout, though imperceptibly thinning out towards distal parts of colonies. Stems monosiphonic, nearly isodiametric; divided into internodes by weak, alternately sloping constrictions of perisarc, giving the stem a slight zigzag appearance. Basalmost internode hydrothecate, arising directly from hydrorhiza; provided with 2–5 annuli proximally. Reminder of caulus composed of rather short, fairly regular internodes, each bearing a hydrotheca distally and occasionally a short apophysis for the insertion of cladia below its base; internodes ...