AnimaliaNot EvaluatedacceptedspeciesAccepted
Halopteris plumosa
Galea & Schories, 2012
GBIF:127669550
0year
ABOUT
Descriptions(3)
Remarks. This is the first finding of the gonothecae of this species. They are given off singly or in pairs, slightly laterally, below the stem hydrothecae. Female (Fig. 8 N) ca. 860 µm long and 455 µm wide, basally ventricose, longitudinal axis S-shaped, aperture perpendicular to it; borne on a two-pieced pedicel ca. 140 µm long; aperture semi-circular, ca. 155 µm wide, closed by thin layer of perisarc; a transverse septum near base of gonotheca; two bithalamic nematothecae inserted between the basal septum and origin of gonotheca from pedicel; upper chambers of nematothecae with lowered inner walls. Male gonothecae (Fig. 8 O) ca. 725 µm long and 335 µm wide, elongate-ovoid, tapering basally and slightly curved there; aperture distal, circular, ca. 145 µm wide, closed by thin layer of perisarc; a two-segmented, 80 – 95 µm long pedicel basally. The characteristic shape of the female gonotheca recalls that of H. minuta (Trebilcock, 1928), as illustrated by Schuchert (1997).
Galea, Horia R., Schories, Dirk, Försterra, Günter, Häussermann, Verena (2014): New species and new records of hydroids (Cnidaria: Hydrozoa) from Chile. Zootaxa 3852 (1): 1-50, DOI: 10.11646/zootaxa.3852.1.1
Distribution in Chile. From Punta de Choros in the North to Corral in the South (Galea & Schories 2012 a, present study). World records. Occurs in Argentina (see Galea & Schories 2012 a).
Galea, Horia R., Schories, Dirk, Försterra, Günter, Häussermann, Verena (2014): New species and new records of hydroids (Cnidaria: Hydrozoa) from Chile. Zootaxa 3852 (1): 1-50, DOI: 10.11646/zootaxa.3852.1.1
Material examined. Niebla, Bonifacio, lat. - 39.68333, long. - 73.36667, 08. viii. 2012, 14 m, sample 07: two cormoids, one bearing male and the other female gonothecae (MHNG-INVE- 86226).
Galea, Horia R., Schories, Dirk, Försterra, Günter, Häussermann, Verena (2014): New species and new records of hydroids (Cnidaria: Hydrozoa) from Chile. Zootaxa 3852 (1): 1-50, DOI: 10.11646/zootaxa.3852.1.1
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CLASSIFICATION
Taxonomic Classification Tree
MULTIMEDIA
Media Files(1)
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).
Imageimage/png© Galea, Horia R.;Schories, Dirk;Försterra, Günter;Häussermann, VerenaGalea, Horia R.;Schories, Dirk;Försterra, Günter;Häussermann, Verena
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