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77 results for “Astrophorida”
FIGURE 4G–L. Ancorina buldira n in Aleutian Ancorinidae (Porifera, Astrophorida): Description of three new species from the genera Stelletta and Ancorina
FIGURE 4G–L. Ancorina buldira n. sp. G, Oxyaster. Scale bar is 10 µm. H, Oxyaster. Scale bar is 2 µm. I, Oxyaster and sanidaster. Scale bar is 2 µm. J, Sanidaster. Scale bar is 2 µm. K, Plesiaster. Scale bar is 20 µm. L, Plesiaster among oxyasters and diatoms. Scale bar is 20 µm.
FIGURE 4A–F. Ancorina buldira n in Aleutian Ancorinidae (Porifera, Astrophorida): Description of three new species from the genera Stelletta and Ancorina
FIGURE 4A–F. Ancorina buldira n. sp. A, Holotype. View from above. Scale bar is 10 cm. B, Holotype, showing internal structure. Scale bar is 10 cm. C, Plagiotriaene. Scale bar is 200 µm. D, Anatriaene. Scale bar is 200 µm. E, Dichotriaene and protriaene. Scale bar is 200 µm. F, Protriaene. Scale bar is 200 µm.
FIGURE 3G–J. Stelletta anthastra n in Aleutian Ancorinidae (Porifera, Astrophorida): Description of three new species from the genera Stelletta and Ancorina
FIGURE 3G–J. Stelletta anthastra n. sp. G, Oxyasters and anthasters. Scale bar is 10 µm. H, Oxyasters. Scale bar is 2 µm. I, Anthasters. Scale bar is 2 µm. J, Anthasters around unidentified diatom. Scale bar is 10 µm.
FIGURE 3A–F. Stelletta anthastra n in Aleutian Ancorinidae (Porifera, Astrophorida): Description of three new species from the genera Stelletta and Ancorina
FIGURE 3A–F. Stelletta anthastra n. sp. A, Holotype, upper side. Grid marks are 1 cm. B, Holotype, obliquely from below. Grid marks are 1 cm. C, Holotype, section showing outer radial structure. Scale bar is 5 cm. D, Holotype, subsample showing radial structure, section perpendicular to c. Scale bar is 5 cm. E, Plagiotriaene. Scale bar is 100 µm. F, Anatriaene, note size difference to plagiotriaene. Scale bar is 20 µm.
FIGURE 2G–L. Stelletta makushina n in Aleutian Ancorinidae (Porifera, Astrophorida): Description of three new species from the genera Stelletta and Ancorina
FIGURE 2G–L. Stelletta makushina n. sp. G, Triaene with three club-shaped rays. Scale bar is 100 µm. H, Diaene, two clubshaped rays. Scale bar is 100 µm. I, Monaene, one club-shaped ray. Scale bar is 200 µm. J, Protriaene. Scale bar is 200 µm. K, Cladome of dichotriaene. Scale bar is 200 µm. L, Oxyaster. Scale bar is 2 µm.
FIGURE 2A–F. Stelletta makushina n in Aleutian Ancorinidae (Porifera, Astrophorida): Description of three new species from the genera Stelletta and Ancorina
FIGURE 2A–F. Stelletta makushina n. sp. A, Holotype at left. Stelletta ovalae Tanita, 1965 at right. Grid marks are 1 cm. B, left: through the cortex (dark band) protruding triaenes, right: interior of sponge. Scale bar is 500 µm. C, Cladomes of protruding triaenes. Scale bar is 500 µm. D, Cladome of anatriaene. Scale bar is 100 µm. E, Plagiotriaene. Scale bar is 200 µm. F, Plagiotriaene with two reduced club-shaped rays. Scale bar is 200.
FIGURE 1. Collection locations for Stelletta ovalae and Stelletta makushina n in Aleutian Ancorinidae (Porifera, Astrophorida): Description of three new species from the genera Stelletta and Ancorina
FIGURE 1. Collection locations for Stelletta ovalae and Stelletta makushina n. sp. (■), Stelletta anthastra n. sp. (●), and Ancorina buldira n. sp. (▲) in the Aleutian Islands of Alaska.
FIGURE 2 in A new species of Stelletta (Demospongiae, Astrophorida) without microscleres from Abrolhos Archipelago, northeastern Brazil
FIGURE 2. Stelletta anasteria sp. nov. A, preserved specimen (holotype MNRJ 6170; an ascidian is attached to the surface in the upper right portion of the specimen); B, cortex and periphery of the choanosome in cross section; C, choanosome in cross section; D, spherulous cells near the cortex (co — cortex; sc — subdermal cavity).
FIGURE 1 in A new species of Stelletta (Demospongiae, Astrophorida) without microscleres from Abrolhos Archipelago, northeastern Brazil
FIGURE 1. Map of Abrolhos archipelago, northeastern Brazil, with the distribution of Stelletta anasteria sp. nov.
FIGURE 5 in A review of Norwegian streptaster-bearing Astrophorida (Porifera: Demospongiae: Tetractinellida), new records and a new species
FIGURE 5. Spicules of Pachastrella nodulosa sp. nov. [ZMBN 85242, holotype]. A. Large and small calthrops. mstr: microstrongyles. amph: amphiaster; B. Microxea; C. Microxea (whip-like), foreign?; D. Amphiasters; E. Microrhabdose streptaster and detail; F. Microstrongyles and microrhabdose streptasters.
FIGURE 3. A in A review of Norwegian streptaster-bearing Astrophorida (Porifera: Demospongiae: Tetractinellida), new records and a new species
FIGURE 3. A. Geographical distribution of Characella pachastrelloides (Carter, 1876) and Characella tripodaria (Schmidt, 1868). The molecular phylogenetic tree obtained in Cárdenas et al. (2011) is mapped in relation with the specimens sequenced; B. Geographical distribution of C. pachastrelloides and C. tripodaria in relation with bathymetry.
FIGURE 1 in A review of Norwegian streptaster-bearing Astrophorida (Porifera: Demospongiae: Tetractinellida), new records and a new species
FIGURE 1. Characella pachastrelloides (Carter, 1876). A. ZMBN 80248 collected in Norway. Scale: 1 cm; B. ZMBN 25629 from the Ibero-Moroccan Gulf (Arnesen, 1932). Scale: 1 cm; C. ZMAPOR 20375 from Mingulay Reef, Scotland. Scale: 3 cm; D. Thick section showing the skeletal architecture of cortex and choanosome. Scale: 1 mm [ZMBN 80248]; E. Cross-section of main atrium. Notice the tough contractile membrane surrounding the oscule. Scale: 1 cm [ZMAPOR 20375]; F. Close-up of thick section D showing the arrangement of microxeas, oxeas and triaenes in the cortex. Scale: 500 µm [ZMBN 80248]; G. Thick section of the membrane surrounding the oscule. scc: sub-cortical canals. Scale: 1 mm [ZMAPOR 20375]; H. Crosssection showing the arrangement of microxeas, oxeas and triaenes in the cortex. Scale: 500 µm [ZMBN 25629]; I. Anatriaenes in situ. Scale: 200 µm [ZMBN 85225].
FIGURE 11 in A review of Norwegian streptaster-bearing Astrophorida (Porifera: Demospongiae: Tetractinellida), new records and a new species
FIGURE 11. Poecillastra compressa (Bowerbank, 1866). A. Whole specimen from western Norway, oscule side [ZMBN 77932]; B. Thick section showing cortex and choanosome. os: oscule. Scale: 4 mm. [ZMBN 77932]; C. Whole specimens from Cape Verde, pore side [ZMAPOR 7290]; D. Whole specimen from Røst Reef, northern Norway, pore side. Scale: 3 cm [ZMBN 85246]. E. Orange specimens from Solan Bank, northern Scotland, 80 m depth (© JNCC and Annika Clements). Scale: 5 cm; F. White and orange specimen from Solan Bank, northern Scotland, 80 m depth (© JNCC and Annika Clements). Scale: 5 cm.
FIGURE 22 in A review of Norwegian streptaster-bearing Astrophorida (Porifera: Demospongiae: Tetractinellida), new records and a new species
FIGURE 22. Geographical distribution of Thenea muricata (Bowerbank, 1858). Localities given by Hansen (1885), Fristedt (1887), Sollas (1888), Topsent (1913) and Stephens (1915) were discarded not knowing if some of these could be T. valdiviae.
FIGURE 15 in A review of Norwegian streptaster-bearing Astrophorida (Porifera: Demospongiae: Tetractinellida), new records and a new species
FIGURE 15. Spicules of Vulcanella cf. aberrans (Maldonado & Uriz, 1996) [ZMBN 80959]. A. Ectosomal oxea I; B. Oxea II; C. Irregular triaenes with oxeas II and microxeas; D. Microxea III; E. Microxeas I, regular and centrotylote. plsr: plesiaster. Detail of the ringed pattern in the middle of the centrotylote microxea I; F. Spiraster; G. Bow-shaped metaster. Same scale as F; G. Small plesiaster. Same scale as F; I. Plesiasters. Notice the bow shape of the two lower ones.
FIGURE 14 in A review of Norwegian streptaster-bearing Astrophorida (Porifera: Demospongiae: Tetractinellida), new records and a new species
FIGURE 14. Vulcanella cf. aberrans (Maldonado & Uriz, 1996) [ZMBN 80959]. A. Whole specimens attached to small stone. The polychaete living at its base is Eunice pennata (Müller) (J. Kongsrud, pers. comm.); B. Thick section showing the skeletal organization. Scale: 1 mm; C. Detail of thick section showing the thin ectosome. Scale: 1 mm; D. Detail of thick section showing the irregular triaenes present at the surface (arrows). Scale: 1 mm; E. Atrial sieve. Scale: 500 µm; F. Thick section showing the skeletal organization of the atrial sieve. Scale: 3 mm; Vulcanella aberrans (Maldonado & Uriz, 1996). G. Whole specimen [ZMAPOR 18012]; H. Whole specimen. Scale: 1 cm [ZMAPOR 21170].
FIGURE 8 in A review of Norwegian streptaster-bearing Astrophorida (Porifera: Demospongiae: Tetractinellida), new records and a new species
FIGURE 8. Spicules of Pachastrella monilifera Schmidt, 1868 [MNHN DT-756, holotype]. A. Large and small calthrops; B. Microxea I; C. Microxea II; D. microstrongyle; E. Amphiasters.
FIGURE 25 in A review of Norwegian streptaster-bearing Astrophorida (Porifera: Demospongiae: Tetractinellida), new records and a new species
FIGURE 25. Simplified molecular phylogeny of the Astrophorida focusing on the relationships within the Theneidae, modified from Cárdenas et al. (2011, Fig. 2). Maximum-likelihood tree made from concatenated sequences of COI (Folmer fragment) and 28S (C1–D2 domains). Bootstrap nodal support values>50% are given above the nodes (2,000 replicates).
FIGURE 18 in A review of Norwegian streptaster-bearing Astrophorida (Porifera: Demospongiae: Tetractinellida), new records and a new species
FIGURE 18. Streptasters of Norwegian species of Thenea. Streptasters of Thenea abyssorum Koltun, 1964 [ZMBN 85228]. A. Plesiaster; B. Spirasters; Streptasters of Thenea levis von Lendenfeld, 1907 [ZMBN 85230]. C. Plesiaster. Same scale as A; D. spirasters. Streptasters of Thenea muricata (Bowerbank, 1858) [ZMBN 85231]. E. Plesiaster; F. Spiraster; Streptasters of Thenea valdiviae von Lendenfeld, 1907. G. Plesiaster [ZMBN 85257]; H. Spirasters. Same scale as E. [ZMBN 85233].
FIGURE 4 in A review of Norwegian streptaster-bearing Astrophorida (Porifera: Demospongiae: Tetractinellida), new records and a new species
FIGURE 4. Pachastrella nodulosa sp. nov. A. Whole specimen, top knobby surface. Scale: 3 cm [ZMBN 85243]; B. Whole specimen, under surface. Scale: 3 cm [ZMBN 85243]; C. Holotype, top knobby surface. Arrow points at oscule area. Scale: 2 cm [ZMBN 85242]; D. Cross-section of holotype showing the dense choanosome. Scale: 2 cm [ZMBN 85242]; E. Thick section of oscule area. Scale: 1 mm [ZMBN 85242, holotype]; F. Oscules. Scale: 5 mm [ZMBN 85244]; G. Specimen in situ (arrow) at the base of Paragorgia arborea (Linnaeus) as seen from the manned-submersible JAGO, Traenadjupet, northern Norway, 298 m. Specimen is approximately 30 cm in size; H. Specimen in situ as seen from the manned-submersible JAGO, Traenadjupet, northern Norway, 301 m. Specimen is approximately 20 cm in diameter.
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