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FIGURE 20. Polycirrus culcita n in Polycirridae (Annelida, Terebelliformia) from Lizard Island, Great Barrier Reef, Australia
FIGURE 20. Polycirrus culcita n. sp., holotype AM W.47643. A–B. Entire incomplete worm, dorsal and ventral views, respectively; C–D. Anterior end, dorsal and ventral views, respectively; E–G. Close ups of the anterior end, dorsal and two ventral views, in progressively higher magnifications; H. Notochaetae, segment 5; I–J. Close up of the tips of notochaetae from anterior and posterior rows, respectively, segment 5; K–L. Uncini, segments 16 and 20, respectively. Numbers refer to segments. Abbreviations: i = inner region of lower lip, ll = lower lip, o = outer region of lower lip, P = basal part of prostomium, ul = upper lip, * = distal part of prostomium. Scale bars: A–B = 500 µm, C = 300 µm, D–F = 200 µm, G = 100 µm, H = 30 µm, I–J = 10 µm, K–L = 7 µm.
FIGURE 15. Polycirrus papillatus n in Polycirridae (Annelida, Terebelliformia) from Lizard Island, Great Barrier Reef, Australia
FIGURE 15. Polycirrus papillatus n. sp., paratype AM W.47661. A–B. Entire worm, dorsal and ventral views, respectively; C. Anterior end, dorsal view; D–F. Thorax, left lateral, right dorso-lateral and ventral views, repectively; G–J. Anterior end, ventral, left lateral, right dorso-lateral and dorsal views, repectively; K. Close up of the anterior end, ventral view; L. Notopodia, segments 4–5, white arrows point to nephridial papillae, black arrow points to first neuropodium. Numbers refer to segments. Abbreviations: ll = lower lip, P = basal part of prostomium, ul = upper lip, * = distal part of prostomium. Scale bars: A–B = 400 µm, C–D, F, I = 200 µm, E = 300 µm, G–H, J = 75 µm, K = 50 µm, L = 10 µm.
FIGURE 14. Polycirrus papillatus n in Polycirridae (Annelida, Terebelliformia) from Lizard Island, Great Barrier Reef, Australia
FIGURE 14. Polycirrus papillatus n. sp., holotype AM W.45149. A–B. Entire worm, dorsal and ventral views, respectively; C. Anterior end, dorsal view; D. Posterior end, ventral view; E. Anterior end, ventral view; F–G. Close ups of the anterior end, ventral and dorsal views, respectively, arrow points to first neuropodium; H. Notochaetae of anterior row, segment 4; I. Tips of notochaetae of posterior row, segment 4; J. Uncini, segments 7–8; K. Uncini, segment 18. Numbers refer to segments. Abbreviations: ll = lower lip, P = basal part of prostomium, ul = upper lip, * = distal part of prostomium. Scale bars: A–B = 200 µm, C–E = 100 µm, F–G = 70 µm, H– I = 30 µm, J = 7 µm, K = 20 µm.
FIGURE 17. Polycirrus papillatus n in Polycirridae (Annelida, Terebelliformia) from Lizard Island, Great Barrier Reef, Australia
FIGURE 17. Polycirrus papillatus n. sp., paratype AM W.47661. A–E. Progressively closer views of one notopodium and notochaetae of segment 7, under different magnifications and angles of visualization; arrow points to genital papilla of segment 8; F. Parapodia, segments 13–14, last thoracic and first abdominal segments; G–I. Neuropodia, segments 11 (thoracic), 15 and posterior one (both abdominal), respectively. Scale bars: A, D, F = 20 µm, B = 15 µm, C = 2 µm, E = 10 µm, G = 3 µm, H = 4 µm, I = 5 µm.
FIGURE 42 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 42. Smenospongia cf. echina, fiber skeleton (light microscopy): a, ectosomal reticulation ending in a conule; b, choanosomal reticulation, including primary fiber containing sediment particles; c, primary fiber with pith; d, primary fiber containing foreign (sedimentary) sponge spicules. Abbreviation: pf=primary fiber.
FIGURE 43 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 43. Aplysina sciophila, anatomy/histology (holotype USNM1191343, light and electron microscopy): a, lightmicroscope view of fiber skeleton; b. SEM view of fiber cross-section, showing bark and pith; c. TEM view of choanocyte chamber, mesohyle full of bacteria, and spherulous cell; d. TEM view of bacteriocyte, spherulous cell, and mesohyle containing free bacteria. Abbreviations: ba=bacteria in mesohyle; bc=bacteriocyte; cc=choanocyte; sc=spherulous cell.
FIGURE 40 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 40. Siphonodictyon occultum, spicules (holotype USNM 1229127, SEM): a, oxeas, grading to strongyloxeas; b, malformations of oxeote points.
FIGURE 37 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 37. Myrmekioderma laminatum, spicules (holotype USNM 1229076, SEM): a, oxeas and modifications; b, acanthoxeas, with one acanthotylote form; c, raphid cluster among acanthoxeas; d, individual raphids.
FIGURE 41 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 41. Xestospongia purpurea, spicules (holotype USNM 1229140, SEM): oxeas, including (thinner) developmental stages, and styloid modifications.
FIGURE 36 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 36. Phorbas aurantiacus, spicules (holotype USNM 1229060, SEM): a, styles; b, acanthostyles I; c, acanthostyles II; d, acanthostyles III.
FIGURE 39 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 39. Niphates arenata, spicules (holotype USNM 1229119, SEM): a, strongyles, including a developmental stage (right); b, toxas, including a raphidoid modification.
FIGURE 35 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 35. Clathria (Thalysias) curacaoensis, spicules (SEM): a, styles; b, (sub)-tylostyles I; c, (sub)-tylostyles II (with spiny heads enlarged); d, acanthostyles; e, regular and raphidiform toxas; f, isocheles I; g, isocheles II (regular and twisted forms).
FIGURE 34 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 34. Clathria (Microciona) campecheae, spicules (SEM): a, choanosomal tylostyle (left) and ectosomal subtylostyles (with heads enlarged); b, acanthostyles; c, palmate isochelas; d, toxa.
FIGURE 33 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 33. Clathria (Microciona) bulbotoxa, spicules (SEM): a, subtylostyles I (choanosomal); b, subtylostyles II (with one rounded end enlarged); c, bulbous and developing (non-bulbous) toxas; c, twisted palmate isochelas.
FIGURE 32 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 32. Wigginsia curlewensis, spicules (holotype USNM 1229005, SEM): a. Ectosomal tylotes, with microspined tyles; b. Acanthostrongyles; c. Acanthostyles I; d. Acanthostyles II; e. Isochele.
FIGURE 25 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 25. Timea diplasterina, spicules (holotype USNM 1228986, SEM): a, tylostyles in two size classes, one deformed tyle magnified; b, two oxyasters (left) and one diplaster (approaching the shape of a spiraster); c, spheroxyaster I, with smooth rays, some branched; d, spheroxyasters II, with microspined rays; e, diplasters.
FIGURE 31 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 31. Cornulum johnstoni, spicules (SEM): a, strongyles (tylotes) with microspinded ends (tyles), three ends magnified; b, palmate isochelas; c, toxas.
FIGURE 10 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 10. Stelletta solidissima, spicules (SEM): a, oxeas; b, triaenes; c, microspined microxeas; microspined strongylasters and oxyasters.
FIGURE 7 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 7. Tetralophophora mesoamericana, histology (holotype USNM 1228906; light microscopy): a, embryo (right) and choanocyte chambers; b, choanocyte chambers enlarged among fragments of calthrops.
FIGURE 21 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 21. Spirastrella mollis, spicules (SEM): a, tylostyles; b, spirasters I; c, spirasters II/amphiasters.
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.