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FIGURE 4 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 4. In-situ photographs of new sponge species reported in this contribution (measurements in parentheses are picture widths): a, Wigginsia curlewensis (8 cm); b, Phorbas aurantiacus (10 cm); c, Myrmekioderma laminatum (12 cm); d, Niphates arenata (10 cm); e, Siphonodictyon occultum (10 cm); f, Xestospongia purpurea (8 cm); g, Aplysina sciophila (20 cm).
FIGURE 29 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 29. Rhaphidhistia belizensis, spicules (holotype USNM 1228992, SEM): a, oxeas, with styloid and strongyloid modifications; b, spirasters I; c, spirasters II; d, spirasters III.
FIGURE 20 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 20. Spirastrella coccinea, spicules (SEM): a, tylostyles; b, spirasters, with transitions to amphiasters.
FIGURE 2 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 2. The most common cryptic habitats studied in the Carrie Bow Cay vicinity (measurements in parentheses are picture widths): a, lower surface of platy coral rock showing the characteristic red foraminiferan Homotrema rubrum, calcareous serpulid polychaete tubes, and two encrusting sponges, Clathria (Thalysias) venosa (left) and Clathria (Thalysias) curacaoensis (10 cm); b, wall inside a forereef framework cave, showing the massive Smenospongia cf. echina (yellow) and Topsentia bahamensis, and encrusting Clathria (Microciona) bulbotoxa (17 cm); c, ceiling of the drowned karst cave in the barrier reef lagoon near Columbus Cay, about 20 m away from the entrance ("blue hole"), showing cemented (mostly dead) serpulid tubes, a branching form of Geodia gibberosa (center) and a few knobby specimens of Gastrophanella cavernicola (far left and right; 20 cm); d, broken-up rock from a forereef cave bottom, showing deserted polychaete borings that are colonized by Cryptosyringa membranophila specimens (6 cm); e, broken-up coral rock showing chambers of excavating sponge Cliona cf. mucronata (7 cm); f, Queen conch (Strombus gigas) shell discarded by local fishermen are a common cryptic habitat on the shallow reef (the slot cut by machete near the apex (arrow) to remove the conch assures good ventilation inside the shell); this shell is colonized outside by Chondrilla caribensis, which occurs fully light exposed as well as in darkness (20 cm); g, peat cave (undercut) in the Twin Cays mangrove, the wall covered by Scopalina ruetzleri (80 cm).
FIGURE 16 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 16. Cliona sp., spicules (SEM): a, tylostyles, head shapes enlarged; b, microspined microrhabds.
FIGURE 1 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 1. Map of Carrie Bow Cay (Belize) research area showing investigated locations: Carrie Bow Cay and Curlew bank, sites of shallow, platy coral rubble and forereef framework caves, Twin Cays mangrove island with undercut beat banks, and Columbus Cay, location of a drowned karst cave with sinkhole entrance ("blue hole.")
FIGURE 24 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 24. Tethya maza, spicules (SEM): a, strongyloxeas; b, spherasters; c, strongylasters; d, tylasters; e, oxyaster.
FIGURE 9 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 9. Samus anonymus, spicules (SEM): a, smooth amphitriaenes; b, microspined amphitriaenes; c, spined sigmaspires.
FIGURE 13 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 13. Cliona cf. mucronata, spicules (SEM): a, tylostyles I; b, tylostyles II; c, enlarged heads of tylostyles I (top) and II (bottom).
FIGURE 3 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 3. In-situ photographs of new sponge species reported in this contribution (measurements in parentheses are picture widths): a, Tetralophophora mesoamericana (3 cm); b, Geodia cribrata (12 cm); c, Placospongia caribica on "pseudostalactite" made up by calcareous serpulid tubes (5 cm); d, Prosuberites carriebowensis (adjacent to Monanchora arbuscula to the lower right) (4 cm); e, Timea diplasterina (8 cm); f, Timea oxyasterina (4cm); g, Rhaphidhistia belizensis (14 cm).
FIGURE 23 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 23. Prosuberites carriebowensis, spicules (holotype USNM 1228972, SEM): a, tylostyles I; b, tylostyles II.
FIGURE 22 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 22. Aaptos pernucleata, spicules (drawn from light and scanning electron micrographs): a, strongyloxeas/styloids I; b, strongyloxeas/styloids II; c, styles/subtylostyles (III); d, magnified rounded ends of styles/subtylostyles III.
FIGURE 19 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 19. Diplastrella megastellata, spicules (SEM): a, tylostyles; b, spherasters with complex rays; c, spirasters/diplasters.
FIGURE 8 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 8. Tetralophophora mesoamericana, spicules (holotype USNM 1228906; SEM): tetralophose calthrops.
FIGURE 5 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 5. Corticium quadripartitum, spicules (SEM): a, calthrops; b, lophocalthrops; c, candelabras; d, spheres.
FIGURE 12 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 12. Spiroxya spiralis, spicules (SEM): a, oxeas; b, spirasters, one of the ends enlarged to show details of microspination.
FIGURE 27 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 27. Timea stenosclera, spicules (SEM): a, tylostyles; b, oxyasters and strongylaster with microspines rays; c, oxyaster with smooth rays.
FIGURE 26 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 26. Timea oxyasterina, spicules (holotype USNM 1228987, SEM): a, tylostyles and styloid modifications; b, oxyasters, microspined along the distal parts of the rays.
FIGURE 11 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 11. Geodia cribrata, spicules (holotype USNM 1228917, SEM): a, large oxeas and triaenes (both partial); b, sterrasters, including a developmental stage (left); c, sterrasters, enlarged; d, cortical strongyloxeas; e, microspined oxyasters attached to an immature sterraster; f, microspined strongylaster, also attached to spines of an immature sterraster.
FIGURE 18 in Diversity of sponges (Porifera) from cryptic habitats on the Belize barrier reef near Carrie Bow Cay
FIGURE 18. Placospongia caribica, spicules (holotype USNM 32873, SEM): a, tylostyles; b, selenasters, including developing forms; c, spherasters; d, spirasters, most are microspined; e, microspined oxyasters; f, microspined microrhabds.
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