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37 results for “Plakinidae”
FIGURE 3 in Four new species of Plakinidae (Porifera: Homoscleromorpha) from Brazil
FIGURE 3. Plakortis spinalis sp. nov.: A, preserved holotype (MNRJ 8597); B, tangential section of the ectosome; C, transverse section of ectosome and choanosome; D, fiber-like structure in the choanosome; E, diods; F, triods; G, tuberculate microrhabds; H, sphere (E–H, SEM).
FIGURE 2 in Four new species of Plakinidae (Porifera: Homoscleromorpha) from Brazil
FIGURE 2. Plakortis petrupaulensis sp. nov.: A, holotype (MNRJ 11828) in vivo; B, holotype preserved in ethanol; C, tangential section of the ectosome; D, transverse section of ectosome and choanosome; E, diods (SEM); F, tuberculate microrhabds (left and center) and sphere (right; SEM).
FIGURE 1 in Four new species of Plakinidae (Porifera: Homoscleromorpha) from Brazil
FIGURE 1. Collection sites of the four new species of Plakortis. Orange, Plakortis petrupaulensis sp. nov. (São Pedro e São Paulo Archipelago); blue, Plakortis spinalis sp. nov. (Fernando de Noronha Archipelago); yellow, Plakortis potiguarensis sp. nov. (Potiguar Basin, Rio Grande do Norte State); green, Plakinastrella globularis sp. nov. (off Salvador, Bahia State and Almirante Saldanha Seamount, Rio de Janeiro State). The states where the new species occur are labeled: RN, Rio Grande do Norte; BA, Bahia; RJ, Rio de Janeiro.
FIGURE 6 in Four new species of Plakinidae (Porifera: Homoscleromorpha) from Brazil
FIGURE 6. Spicules of Plakinastrella globularis sp. nov. (SEM): A, small diods; B, large diods; C, triods; D, calthrops; E, Microrhabds; F, spheres.
Figure 7 in Taxonomy of family Plakinidae (Porifera: Homoscleromorpha) from eastern Pacific coral reefs, through morphology and cox1 and cob mtDNA data
Figure 7. Scanning electron microscopy images of spicules and skeletal structure of Plakinastrella clippertonensis van Soest et al., 2011. A, diods. B, triods. C, simple calthrops. D, tangential view of the ectosome. E, transversal view of the choanosome.
Figure 5 in Taxonomy of family Plakinidae (Porifera: Homoscleromorpha) from eastern Pacific coral reefs, through morphology and cox1 and cob mtDNA data
Figure 5. Scanning electron microscopy and light microscopy images of spicules and skeletal structure of Plakortis clarionensis sp. nov. A, diods. B, triods. C, tangential view of the ectosome. D, transversal view of the choanosome.
Figure 4 in Taxonomy of family Plakinidae (Porifera: Homoscleromorpha) from eastern Pacific coral reefs, through morphology and cox1 and cob mtDNA data
Figure 4. Scanning electron microscopy and light microscopy images of spicules and skeletal structure of Plakina paradilopha sp. nov. A, diods. B, triods. C, dilophose calthrops. D, transversal view of the choanosome.
Figure 3 in Taxonomy of family Plakinidae (Porifera: Homoscleromorpha) from eastern Pacific coral reefs, through morphology and cox1 and cob mtDNA data
Figure 3. Scanning electron microscopy and light microscopy images of spicules and skeletal structure of Plakina muricyae sp. nov. A, diods. B, triods. C, calthrops. D, monolophose calthrops. E, transversal view of the choanosome.
Figure 6 in Taxonomy of family Plakinidae (Porifera: Homoscleromorpha) from eastern Pacific coral reefs, through morphology and cox1 and cob mtDNA data
Figure 6. Scanning electron microscopy images of spicules and skeletal structure of Plakortis albicans Cruz-Barraza & Carballo, 2005. A, diods and triods. B, tangential view of ectosomal alveolar skeleton. C, transversal view of the choanosome.
Figure 2 in Taxonomy of family Plakinidae (Porifera: Homoscleromorpha) from eastern Pacific coral reefs, through morphology and cox1 and cob mtDNA data
Figure 2. External morphologies of plakinid species from the eastern Pacific. A, B, Plakina muricyae sp. nov. C, i, Plakina paradilopha sp. nov.; ii, Plakina muricyae sp. nov. D, Plakortis clarionensis sp. nov. E, Plakortis albicans Cruz-Barraza & Carballo, 2005. F, Plakinastrella clippertonensis van Soest et al., 2011.
Figure 8 in Taxonomy of family Plakinidae (Porifera: Homoscleromorpha) from eastern Pacific coral reefs, through morphology and cox1 and cob mtDNA data
Figure 8. Phylogenetic reconstruction of cytochrome c oxidase subunit I (cox1; A) and cytochrome b (cob; B) mitochondrial markers. The topologies were obtained by Bayesian inference analysis with MrBayes. The number at each node represents the Bayesian posterior probability (%).
FIGURE 8. Plakina atka n in Two new species of Plakina Schulze, 1880 (Porifera, Plakinidae) from the Aleutian Islands (Alaska, USA)
FIGURE 8. Plakina atka n. sp. Spined calthrops with reduced 4.ray, all rays with basal spines.
FIGURE 5. Plakina atka n in Two new species of Plakina Schulze, 1880 (Porifera, Plakinidae) from the Aleutian Islands (Alaska, USA)
FIGURE 5. Plakina atka n. sp. Holotype encrusting a cobble. Tick marks on grid equal 1 cm.
FIGURE 3. Plakina tanaga n in Two new species of Plakina Schulze, 1880 (Porifera, Plakinidae) from the Aleutian Islands (Alaska, USA)
FIGURE 3. Plakina tanaga n. sp. Weakly spined triods and trilophose calthrops.
FIGURE 2. Plakina tanaga n in Two new species of Plakina Schulze, 1880 (Porifera, Plakinidae) from the Aleutian Islands (Alaska, USA)
FIGURE 2. Plakina tanaga n. sp. Smooth oxeas, triods and calthrops and trilophose.
FIGURE 3 in New cave-dwelling Plakina (Plakinidae, Homoscleromorpha, Porifera) from Martinique Island (French Antilles)
FIGURE 3. General organization of the tissue of Plakina doudou sp. nov. A) Semi-thin section showing two cinctoblastula embryos. B–D) Choanosome. E) Cinctoblastula embryo. F) Close-up of the cinctoblastula embryo. F) Transmission electron micrograph of the embryo. bc: basal cavity; bm: basement membrane; cav: central cavity; cc: choanocyte chamber; Ch: choanocyte; ciC: ciliated cells; cil: cilia; ec: exhalant canal; em: embryo; endo: endopinacoderm; exo: exopinacoderm; Fo: follicular cells; M: mesohyl; N: nucleus; NI: unidentified bodies. Oo: oocyte; Pi: flagellated endopinacocyte; sp: hole left by spicule; V: vitellus.
Figure 1 in Taxonomy of family Plakinidae (Porifera: Homoscleromorpha) from eastern Pacific coral reefs, through morphology and cox1 and cob mtDNA data
Figure 1. Distribution and sample localities of Plakinidae species from the Mexican Pacific coast. Numbers refer to different species as follows: 1, Plakina muricyae sp. nov.; 2, Plakina paradilopha sp. nov.; 3, Plakortis clarionensis sp. nov.; 4, Plakortis albicans Cruz-Barraza & Carballo, 2005; 5, Plakinastrella clippertonensis van Soest et al., 2011.
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