Summary: | FIGURE 16. a–e Oswaldella erratum: a stem; b cauline apophysis showing nematophore; c hydrotheca in lateral view; d hydrotheca in frontal view; e female gonotheca. f–j O. rigida: f cauline apophysis showing nematophore; g hydrotheca in lateral view; h hydrotheca in frontal view; i stem; j detail of the stem showing hydrocladial arrangement. k-l O. delicata: k hydrotheca in lateral view; l hydrotheca in frontal view Published as part of Soto, Joan J. & Peña, Álvaro L., 2019, Benthic hydroids (Cnidaria, Hydrozoa) from the Weddell Sea (Antarctica), pp. 1-78 in Zootaxa 4570 (1) on page 47, DOI:10.11646/zootaxa.4570.1.1, http://zenodo.org/record/2608527
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