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16 results for “Discorhabdella”
FIG. 3 in First record of the sponge genera Crambe and Discorhabdella for the eastern Pacific, with description of three new species
FIG. 3. Spicules of Discorhabdella littoralis n. sp.: (a) tyles of ectosomal subtylostyles; (b) feeble spines around the point of an ectosomal subtylostyle; (c) tyle of a choanosomal tylostyle, on which a slight tubercle (tb) is visible; (d-f) fully grown acanthostyles; (g, h) developing stages of acanthostyles, in which axial canals (ax) are visible in the tyle; (i) sigma.
FIG. 2 in First record of the sponge genera Crambe and Discorhabdella for the eastern Pacific, with description of three new species
FIG. 2. Spicules of Discorhabdella urizae n. sp.: (a) comparative view of an ectosomal subtylostyle and a choanosomal tylostyle; (b, c) spiny point of ectosomal subtylostyles; (d, e) detail of the tuberose tyle of choanosomal tylostyles; (f-i) pseudoastrose acanthostyles; (j) tyle of a pseudoastrose acanthostyle, in which the shaft is broken, making it appear similar to a regular sphaeraster; (k-m) isochelae, in which differences in the number of teeth between and within spicules is seen; (n) comparative view of isochela and curved microxea; (o) curved microxea; (p) curved microxea and sigma; (q) sigma.
FIG. 1 in First record of the sponge genera Crambe and Discorhabdella for the eastern Pacific, with description of three new species
FIG. 1. Spicules of Crambe panamensis n. sp.: (a) point and tyle of an ectosomal subtylostyle; (b) point of a subectosomal subtylostyle with feeble spines (sp); (c) tyle of a choanosomal tylostyle, where vestiges of a tubercle (tb) can be seen; (d-f) fully grown astroclones with diversely developed actines that show both zygomes (z) and blunt ends (be); (g) early developing stage of an astroclone; (h) comparative view of fully grown desmas (gd) and early developing stages (dd); (i) isochela.
FIGURE 9. Discorhabdella atypica n in Fourteen new species of demosponges (Porifera) from three coastal fjords in southern British Columbia, Canada
FIGURE 9. Discorhabdella atypica n. sp. Holotype RBCM 024-00008-002 (A) In-situ. (B) Skeleton cross section, ectosome on the right. (C), (D) Subtylostyles showing head and apex variation. (E) Tylostyles. (F) Acanthostyle. (G) Anchorate unguiferous multidentate isochelas. (H) Sigma.
FIGURE 3. Discorhabdella pseudaster n in When is an aster not an aster? A new deep-sea Discorhabdella (Demospongiae, Poecilosclerida) with asters, from the Mozambique Channel
FIGURE 3. Discorhabdella pseudaster n. sp. A, head of a subtylostyle, showing the axial canal. B, head of a pseudoastrose acanthotyle viewed by the top.
FIGURE 3 in New Poecilosclerida from mesophotic coral reefs and the deep-sea escarpment in the Pulley Ridge region, eastern Gulf of Mexico: Discorhabdella ruetzleri n.sp. (Crambeidae) and Hymedesmia (Hymedesmia) vaceleti n. sp. (Hymedesmiidae)
FIGURE 3. Hymedesmia (Hymedesmia) vaceleti n.sp. A. habitus, thinly encrusting on Lophelia rubble and snails (scale 1 cm), B. ectosomal smooth tornote (scale 40 µm), C. hymedesmoid arrangement of megascleres observed in fragment that had been previously treated with nitric acid for spicule dissociation (scale 100 µm), D. smaller category of acanthostyles (scale 37.5 µm), E. arcuate isochela, side view (scale 22 µm), F. arcuate isochela, back view showing flattened shaft (scale 27.5µm).
FIGURE 2. Discorhabdella pseudaster n in When is an aster not an aster? A new deep-sea Discorhabdella (Demospongiae, Poecilosclerida) with asters, from the Mozambique Channel
FIGURE 2. Discorhabdella pseudaster n. sp., A, habitus of holotype (arrow). B, large subtylostyle. C, tylostyle. D, pseudoastrose acanthotyle. E, immature pseudoastrose acanthotyle. F, pseudoastrose acanthotyle seen from the tip. G, H & I, pseudoasters. J, unguiferous cleistochelae.
FIGURE 1 in New Poecilosclerida from mesophotic coral reefs and the deep-sea escarpment in the Pulley Ridge region, eastern Gulf of Mexico: Discorhabdella ruetzleri n.sp. (Crambeidae) and Hymedesmia (Hymedesmia) vaceleti n. sp. (Hymedesmiidae)
FIGURE 1. Map of the northeastern Gulf of Mexico showing the area of Pulley Ridge and the localities where the two new Poecilosclerida species were collected.
FIGURE 2. Discorhabdella ruetzleri n in New Poecilosclerida from mesophotic coral reefs and the deep-sea escarpment in the Pulley Ridge region, eastern Gulf of Mexico: Discorhabdella ruetzleri n.sp. (Crambeidae) and Hymedesmia (Hymedesmia) vaceleti n. sp. (Hymedesmiidae)
FIGURE 2. Discorhabdella ruetzleri n.sp. A. habitus (scale 1 cm), B. principal choanosomal subtylostyle with smooth tyle (scale 70 µm), C. pseudoastrose echinating acanthostyles with sub-terminal supination on apical spine, and sigma (scale 15µm), D. shorter choanosomal subtylostyles with smooth tyle (scale 100µm), E. pseudoastrose echinating acanthostyles with smooth apical spine (scale 10 µm), F. spined microrhabd (scale 10µm).
Figure 4 from: Ise Y, Vacelet J, Izumi T, Woo SP, Tan SH (2021) First record of the genus Discorhabdella (Porifera, Demospongiae, Poecilosclerida, Crambeidae) from Sagami Bay, Japan with description of two new species. ZooKeys 1076: 67-81. https://doi.org/10.3897/zookeys.1076.37278
Figure 4 Spicules of Discorhabdella hispida sp. nov., holotype (NSMT-Po-2489). A Acanthostyles B isochelae C magnified view of one extremity of isochelae. a, alae D sigmoid microscleres. Scale bars: 20 µm (A); 10 µm (B, D); 2 µm (C).
Figure 6 from: Ise Y, Vacelet J, Izumi T, Woo SP, Tan SH (2021) First record of the genus Discorhabdella (Porifera, Demospongiae, Poecilosclerida, Crambeidae) from Sagami Bay, Japan with description of two new species. ZooKeys 1076: 67-81. https://doi.org/10.3897/zookeys.1076.37278
Figure 6 Spicules of Discorhabdella misakiensis sp. nov., holotype (NSMT-Po-2490). A Acanthostyles B comaparative view of acanthostyle and isochelae C isochelae D back side view of broken isochelae. a, alae. Scale bars: 20 µm (A, B); 5 µm (C); 2 µm (D).
Figure 3 from: Ise Y, Vacelet J, Izumi T, Woo SP, Tan SH (2021) First record of the genus Discorhabdella (Porifera, Demospongiae, Poecilosclerida, Crambeidae) from Sagami Bay, Japan with description of two new species. ZooKeys 1076: 67-81. https://doi.org/10.3897/zookeys.1076.37278
Figure 3 Spicules of Discorhabdella hispida sp. nov., holotype (NSMT-Po-2489). A Choanosomal subtylostyle B magnified view of base of subtylostyle C–E ectosomal subtylostyle D tyle E tip F magnified view of tip. Note the surface is microspined. Scale bars: 300 µm (A); 50 µm (B); 10 µm (D, E); 5 µm (F).
Figure 5 from: Ise Y, Vacelet J, Izumi T, Woo SP, Tan SH (2021) First record of the genus Discorhabdella (Porifera, Demospongiae, Poecilosclerida, Crambeidae) from Sagami Bay, Japan with description of two new species. ZooKeys 1076: 67-81. https://doi.org/10.3897/zookeys.1076.37278
Figure 5 Spicules of Discorhabdella misakiensis sp. nov., holotype (NSMT-Po-2490). A–C Choanosomal subtylostyle B magnified view of base of subtylostyle with prominent lumpy projections C tip D–F ectosomal subtylostyle E tyle F tip. Scale bars: 50 µm (A, D); 20 µm (B, C); 10 µm (E, F).
Figure 2 from: Ise Y, Vacelet J, Izumi T, Woo SP, Tan SH (2021) First record of the genus Discorhabdella (Porifera, Demospongiae, Poecilosclerida, Crambeidae) from Sagami Bay, Japan with description of two new species. ZooKeys 1076: 67-81. https://doi.org/10.3897/zookeys.1076.37278
Figure 2 A–C External view of Discorhabdella hispida sp. nov., holotype (NSMT-Po-2489). A Alive B in ethanol preserved C magnified view of surface of preserved specimen. Note a number of choanosomal subtylostyles vertically protruding with their tips outward D external view of Discorhabdella misakiensis sp. nov., holotype (NSMT-Po-2490) in ethanol preserved state. Note most part of the sponge was already used for spicule preparation. Scale bars: 5 mm (A, B); 500 µm (C); 3 mm (D).
FIGURE 1 in When is an aster not an aster? A new deep-sea Discorhabdella (Demospongiae, Poecilosclerida) with asters, from the Mozambique Channel
FIGURE 1. On-deck picture of the piece of rock bearing the specimen (arrow). Square = 25 mm.
Figure 1 from: Ise Y, Vacelet J, Izumi T, Woo SP, Tan SH (2021) First record of the genus Discorhabdella (Porifera, Demospongiae, Poecilosclerida, Crambeidae) from Sagami Bay, Japan with description of two new species. ZooKeys 1076: 67-81. https://doi.org/10.3897/zookeys.1076.37278
Figure 1 Location of sampling site. Open star indicates Sagami Bay.
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