FIGURE 6. Polymastia zitteli. A–specimen SMF 10557. B–histological section of idem, general view. C, D–the same as B, details of cortex. E–surface view of detached cortex of idem. F–principal and intermediary spicules. G–small spicules. Scale bars: A 10 mm; B 1 mm; C–E 0.2 mm; F–G 0.1 mm.Published as part of Plotkin, Alexander S. & Janussen, Dorte, 2008, Polymastiidae and Suberitidae (Porifera: Demospongiae: Hadromerida) of the deep Weddell Sea, Antarctic *, pp. 95-135 in Zootaxa 1866 on page 110, DOI: 10.5281/zenodo.18387
FIGURE 14. Aaptos robustus sp. nov. A—holotype SMF 10562, upper surface. B—the same as A, basal surf...
Figure 6. Antarctoscyphus biformis (Jäderholm, 1905) (Holotype): (a), cauline hydrothecae showing al...
FIGURE 6. Rossella antarctica: A. Collected specimen BELUM.Mc2015.284; B. Specimen BELUM.Mc2015.335;...
FIGURE 6. Polymastia zitteli. A – specimen SMF 10557. B – histological section of idem, general view...
FIGURE 5. Polymastia invaginata: spicules. A–frequency distribution of length (sceptrelike spicules...
FIGURE 4. Polymastia invaginata: external morphology and skeleton architecture. A–specimen SMF 10543...
FIGURE 3. Astrotylus astrotylus. A—holotype SMF 10518, an arrow indicates a papilla. B—histological ...
FIGURE 12. Tentorium cf. semisuberites: external morphology and skeleton architecture. A—a specimen ...
FIGURE 13. Tentorium cf. semisuberites: spicules. frequency distribution of length. B—principal spic...
FIGURE 2. Acanthopolymastia acanthoxa. A—specimen SMF 10539. B—histological section of idem, general...
FIGURE 6. a–b Acryptolaria frigida: a stem; b hydrotheca; c–f Filellum antarcticum: c hydrotheca; d ...
FIGURE 16. Suberites topsenti: external morphology and skeleton architecture. A – specimen SMF 10584...
FIGURE 8. Radiella antarctica sp. nov.: skeleton architecture. A—holotype SMF 10558, manual section....
FIGURE 11. Tentorium papillatum: spicules. A—frequency distribution of length. B—principal spicule. ...
FIGURE 15. Rhizaxinella cf. nuda. A – one specimen SMF 10597. B – the other specimen SMF 10597. C – ...
FIGURE 14. Aaptos robustus sp. nov. A—holotype SMF 10562, upper surface. B—the same as A, basal surf...
Figure 6. Antarctoscyphus biformis (Jäderholm, 1905) (Holotype): (a), cauline hydrothecae showing al...
FIGURE 6. Rossella antarctica: A. Collected specimen BELUM.Mc2015.284; B. Specimen BELUM.Mc2015.335;...
FIGURE 6. Polymastia zitteli. A – specimen SMF 10557. B – histological section of idem, general view...
FIGURE 5. Polymastia invaginata: spicules. A–frequency distribution of length (sceptrelike spicules...
FIGURE 4. Polymastia invaginata: external morphology and skeleton architecture. A–specimen SMF 10543...
FIGURE 3. Astrotylus astrotylus. A—holotype SMF 10518, an arrow indicates a papilla. B—histological ...
FIGURE 12. Tentorium cf. semisuberites: external morphology and skeleton architecture. A—a specimen ...
FIGURE 13. Tentorium cf. semisuberites: spicules. frequency distribution of length. B—principal spic...
FIGURE 2. Acanthopolymastia acanthoxa. A—specimen SMF 10539. B—histological section of idem, general...
FIGURE 6. a–b Acryptolaria frigida: a stem; b hydrotheca; c–f Filellum antarcticum: c hydrotheca; d ...
FIGURE 16. Suberites topsenti: external morphology and skeleton architecture. A – specimen SMF 10584...
FIGURE 8. Radiella antarctica sp. nov.: skeleton architecture. A—holotype SMF 10558, manual section....
FIGURE 11. Tentorium papillatum: spicules. A—frequency distribution of length. B—principal spicule. ...
FIGURE 15. Rhizaxinella cf. nuda. A – one specimen SMF 10597. B – the other specimen SMF 10597. C – ...
FIGURE 14. Aaptos robustus sp. nov. A—holotype SMF 10562, upper surface. B—the same as A, basal surf...
Figure 6. Antarctoscyphus biformis (Jäderholm, 1905) (Holotype): (a), cauline hydrothecae showing al...
FIGURE 6. Rossella antarctica: A. Collected specimen BELUM.Mc2015.284; B. Specimen BELUM.Mc2015.335;...