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83 results for “Glass sponge”
FIGURE 3. Farrea aleutiana n in <strong>New glass sponges (Porifera: Hexactinellida) from deep waters of the central Aleutian Islands, Alaska</strong>
FIGURE 3. Farrea aleutiana n. sp., body and framework. A. Frame grab from video footage of the holotype in situ before collection; the holotype is outlined by white line; arrowheads mark laser spots 10 cm apart. B. Largest fragments of the holotype, USNM# 1196548. C. Cleaned dictyonal framework viewed from atrial side showing relatively straight spurs at bottom (SEM). D. Higher magnification of framework showing smooth beam surfaces and spurs curved toward the growing margin (left) (SEM).
FIGURE 11. Tretodictyum amchitkensis n in <strong>New glass sponges (Porifera: Hexactinellida) from deep waters of the central Aleutian Islands, Alaska</strong>
FIGURE 11. Tretodictyum amchitkensis n. sp., spicules (SEM). A. Surface subhexactins and pentactin. B. Tangential ray end. C. Proximal ray end. D. Range of distal ray development of subhexactins. E. Parenchymal regular hexactin. F. Strongyloscopule, whole, magnified head, shaft tip and tine end. G. Uncinate, whole and enlarged middle segment. H. Oxyhexaster, whole and enlarged ray end. I. Discohexaster, whole and enlarged secondary ray tuft. J. Oxyhexactin.
FIGURE 14 in <strong>New glass sponges (Porifera: Hexactinellida) from deep waters of the central Aleutian Islands, Alaska</strong>
FIGURE 14. Aulosaccus schulzei Ijima, body and surfaces. A. In situ lateral view of whole specimen USNM xxxxx before collection. B Closer view of atrium of same specimen. C. Two faces and edge view of the largest dry fragment. D. Close-up of the dermal surface showing thick hypodermal strands supporting the loose spicule lattice. E. Closer view of the slightly disrupted dermal spicule lattice. F. Close-up of the atrial surface showing the irregular atrial lattice overlying apertures of the exhalent canals.
FIGURE 13 in <strong>New glass sponges (Porifera: Hexactinellida) from deep waters of the central Aleutian Islands, Alaska</strong>
FIGURE 13. Regadrella okinoseana Ijima, spicules (SEM). A. Common large dermal hexactin with enlargements of ray ends. B, C. Less common smaller dermal hexactins with near-equal ray lengths. D. Most common pentactin atrialium. E. Subhexactin atrialium. F. Rare hexactin atrialium. G. Rare stauractin atrialium with short knobs in the axis perpendicular to the page. H. Rare triactin atrialium. I. Rare diactin atrialium. J. Distinctive small diactin oscularium. K. Thin parenchymal diactin, whole and enlarged center and ray ends. L. Large parenchymal principal diactin, whole and enlarged center and ray ends. M. Floricome with enlarged primary ray end disc and terminal ray tips. N. Oxystaurasters in facial and side view; O. Oxyhexaster. P. Enlarged terminal ray end of oxystauractin. Q. Graphiocome centrum. R. Whole raphidial graphiocome terminal ray with enlargements of the proximal part.
FIGURE 18 in <strong>New glass sponges (Porifera: Hexactinellida) from deep waters of the central Aleutian Islands, Alaska</strong>
FIGURE 18. Bathydorus sp., body and spicules. A. Entire specimen teased from cobble. B. Close-up of surface. C. Hypodermal pentactin, whole and magnified ray ends (SEM). D. Dermal stauractin, triactin and diactin, whole and magnified ray ends (SEM). E. Large thick prostal diactin, whole and magnified end (SEM). F. Small thick prostal diactin, whole and magnified ray end (SEM). G. Thin parenchymal diactin, whole and magnified end (SEM). H. Oxyhexactin and hemioxyhexaster, whole and magnified center of the latter (SEM). I. Portion of basidictyonal attachment framework (SEM).
FIGURE 21. Acanthascus koltuni n in <strong>New glass sponges (Porifera: Hexactinellida) from deep waters of the central Aleutian Islands, Alaska</strong>
FIGURE 21. Acanthascus koltuni n. sp., body and surfaces. A. An in situ image of the collected holotype. B. Deck photo of the collected part of the holotype. C. Dermal (left) and atrial sides of the largest holotype fragment after drying.. D. Close-up of the outer (dermal) surface showing a delicate spicule lattice over inhalant canal aperture. E. Close-up of the inner (atrial) surface with exhalent canal open and uncovered by a spicule lattice.
FIGURE 1 in <strong>New glass sponges (Porifera: Hexactinellida) from deep waters of the central Aleutian Islands, Alaska</strong>
FIGURE 1. Map of the North Pacific Ocean showing locations of previously reported Hexactinellida collections (location numbers refer to species listed in Table 1); this study area is indicated by arrow.
FIGURE 20 in <strong>New glass sponges (Porifera: Hexactinellida) from deep waters of the central Aleutian Islands, Alaska</strong>
FIGURE 20. Spicules of Caulophacus (Caulophacus) adakensis n. sp., from the Aleutian Islands (SEM). A. Hypodermal pentactin, whole and enlarged ray ends. B. Hypoatrial pentactin, whole and enlarged ray ends. B1. Center of hypoatrial pentactin showing proximal spines. C. Two parenchymal macrohexactins with enlarged ray end. C1. Center of hypoatrial macrohexactin showing proximal spines. D. Dermal pinular hexactins, variation in form, and enlarged tangential ray end (* denotes most common form). E. Atrial pinular hexactins (* denotes most common form); all pinular hexactins to same scale. F. Diactin, whole and enlarged end and middle segments of thin and thick forms. G. Microsclere terminal ray end discs, end and side views. H. Discohexactin. I. Hemidiscohexaster. J. Discohexaster.
FIGURE 10. Tretodictyum amchitkensis n in <strong>New glass sponges (Porifera: Hexactinellida) from deep waters of the central Aleutian Islands, Alaska</strong>
FIGURE 10. Tretodictyum amchitkensis n. sp., body and framework. A. Frame grab from video footage of the holotype in situ before collection, laser spacing 10 cm. B. Three largest dried fragments, one on left in top and side views. C. Dry external dermal surface showing ridges and grooves. D. Dry internal atrial surface showing open exhalant apertures. E. Closer view of dry dermal surface showing quadrangular spicule lattice over inhalant canals. F. Closer view of dry atrial surface showing uncovered exhalant aperture and dense spicule felt-work. G. Close view of wet atrial surface showing tissue ring around exhalant canal aperture. H. Cleaned marginal skeletal framework showing branching of vertical septa. I. Closer view of septa and intervening space showing transverse connecting strands. J. Marginal end of one septum in lateral view showing disposition of longitudinal strands (SEM). K. Dermal surface of older framework 5 cm from margin with thin surface cortex (SEM). L. Atrial surface of older framework 5 cm from margin with thin surface cortex (SEM).
FIGURE 16 in <strong>New glass sponges (Porifera: Hexactinellida) from deep waters of the central Aleutian Islands, Alaska</strong>
FIGURE 16. Aulosaccus ijimai (Schulze), body and surfaces. A. An in situ image of the collected specimen. B. Two sides (both dermal) of the largest dry fragment. C. Close-up of the dermal surface showing thick hypodermal strands supporting the loose spicule lattice. D. Closer view of the mounted dermal spicule lattice and supporting hypodermal diactin bundles. E. Close-up of the atrial surface showing the irregular atrial lattice overlying apertures of the exhalent canals. F. Closer view of the atrial hexactin lattice.
FIGURE 5. Farrea aspondyla n in <strong>New glass sponges (Porifera: Hexactinellida) from deep waters of the central Aleutian Islands, Alaska</strong>
FIGURE 5. Farrea aspondyla n. sp., body and framework A. Frame grab from video footage of the holotype in situ before collection. B. Three largest fragments of the collected holotype (dry). C. Mass of smaller fragments in which the meshes of the dictyonal framework can just be resolved (dry). D. Plane view of the dictyonal framework showing relative regularity of square meshes (SEM). E. Magnified view of the framework showing smooth beam surfaces and sharp-pointed spurs (SEM). F. Oblique atrial view of framework showing longitudinal strands running away from the viewer and downstream curvature of the spurs (SEM).
Data from: The dorid nudibranchs Peltodoris lentiginosa and Archidoris odhneri as predators of glass sponges
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Data from: Glass sponge reefs as a silicon sink
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Data from: High resolution mapping of community structure in three glass sponge reefs (Porifera, Hexactinellida).
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FIGURE 2 in <strong>New glass sponges (Porifera: Hexactinellida) from deep waters of the central Aleutian Islands, Alaska</strong>
FIGURE 2. Map of study area showing location of ROV 'Jason II' dives and trawl T-5E.
Figure 9 from: Reiswig HM, Dohrmann M, Kelly M, Mills S, Schupp PJ, Wörheide G (2021) Rossellid glass sponges (Porifera, Hexactinellida) from New Zealand waters, with description of one new genus and six new species. ZooKeys 1060: 33-84. https://doi.org/10.3897/zookeys.1060.63307
Figure 9 Scyphidium australiense Tabachnick, Janussen & Menschenina, 2008, NIWA 126237, spicules A prostal diactin, whole and enlarged ends, one broken distal end and two intact proximal ends B choanosomal diactins, whole long and short versions at different scales plus enlarged tips and central swellings C dermalium: pentactin, whole and enlarged tips D atrialia, hexactin, whole and enlarged tip, pentactin, whole with enlarged tips, and paratetractin, whole; scales are the same as those for dermalium E spheres as small group of whole ones and one enlarged Fdiscohexaster 1, whole and enlarged terminal ray end Gdiscohexaster 2, whole and enlarged part of one ray tuft H oxyhexaster, whole and enlarged terminal ray end. Scales are the same for all whole microscleres and their enlarged parts.
Figure 8 from: Reiswig HM, Dohrmann M, Kelly M, Mills S, Schupp PJ, Wörheide G (2021) Rossellid glass sponges (Porifera, Hexactinellida) from New Zealand waters, with description of one new genus and six new species. ZooKeys 1060: 33-84. https://doi.org/10.3897/zookeys.1060.63307
Figure 8 Scyphidium australiense Tabachnick, Janussen & Menschenina, 2008, NIWA 126237, distribution, skeleton and morphology A distribution in New Zealand waters, holotype as open circle, new specimen as filled circle B new specimen in situ (scale bar is approximate) C deck image (two sides, image by PJS) D osculum, deck image (by PJS) E preserved conulose outer surface of the lower body with prostal diactins F preserved wall section of the mid-body without conules G preserved dermal surface with intact pentactin lattice H preserved atrial surface with hexactins displaced from the atrial lattice. Image B captured by ROV Team GEOMAR, ROV Kiel 6000 onboard RV Sonne (voyage SO254), courtesy of Project PoribacNewZ, GEOMAR, and ICBM.
Figure 6 from: Reiswig HM, Dohrmann M, Kelly M, Mills S, Schupp PJ, Wörheide G (2021) Rossellid glass sponges (Porifera, Hexactinellida) from New Zealand waters, with description of one new genus and six new species. ZooKeys 1060: 33-84. https://doi.org/10.3897/zookeys.1060.63307
Figure 6 Nubes poculiformis gen. nov., sp. nov., holotype NIWA 126016, distribution, skeleton and morphology A distribution in New Zealand waters B holotype in situ C holotype, deck image (by PJS); D longitudinal section of holotype, showing hypodermal pentactin veil E closer view of hypodermal pentactin veil F edge of osculum with tuft of marginalia G close view of stalk subdivided for spicule preparation of smaller sample H dermal surface with intact lattice of dermalia over inhalant canals I atrial surface with disrupted lattice of atrialia. Image B captured by ROV Team GEOMAR, ROV Kiel 6000 onboard RV Sonne (voyage SO254), courtesy of Project PoribacNewZ, GEOMAR, and ICBM.
Figure 7 from: Reiswig HM, Dohrmann M, Kelly M, Mills S, Schupp PJ, Wörheide G (2021) Rossellid glass sponges (Porifera, Hexactinellida) from New Zealand waters, with description of one new genus and six new species. ZooKeys 1060: 33-84. https://doi.org/10.3897/zookeys.1060.63307
Figure 7 Nubes poculiformis gen. nov., sp. nov., holotype NIWA 126016, spicules A three prostal hypodermal pentactins, the lower one in plane of tangential rays, with enlarged ray ends B whole marginal diactins (ray ends unavailable) C two whole choanosomal hexactins with two enlarged ray ends and one centrum. Scale of whole spicules as in C; D four whole stalk diactins and enlarged end E dermalia, stauractin and pentactin with enlarged ray ends F atrialium and enlarged ray end G two oxyhexasters and enlarged terminal ray H whole anisodiscohexaster; an enlarged section showing disc diameter increasing in longer terminal rays; an enlarged side view of a terminal ray and end views of terminal ray discs.
Figure 4 from: Reiswig HM, Dohrmann M, Kelly M, Mills S, Schupp PJ, Wörheide G (2021) Rossellid glass sponges (Porifera, Hexactinellida) from New Zealand waters, with description of one new genus and six new species. ZooKeys 1060: 33-84. https://doi.org/10.3897/zookeys.1060.63307
Figure 4 Nubes tubulata gen. nov., sp. nov., holotype NIWA 126159, distribution, skeleton and morphology A Distribution in New Zealand waters B holotype in situ C holotype, deck image D holotype, deck image showing moderate-sized osculum and veil of hypodermal pentactins (deck images by PJS) E dermal surface with dense veil of prostal hypodermal pentactins F atrial surface without a hypodermal veil G closer view of dermal surface with disrupted lattice H closer view of atrial surface with intact lattice over exhalant apertures I section of body wall, dermal surface on left side. Image B captured by ROV Team GEOMAR, ROV Kiel 6000 onboard RV Sonne (voyage SO254), courtesy of Project PoribacNewZ, GEOMAR, and ICBM.
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