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222 results for “southwestern Brazil”
FIGURE 8 in Re-identification of the material of Neocallichirus maryae Karasawa, 2004 from Ceará, northeastern Brazil, with the first record of N. cacahuate Felder & Manning, 1995 in the southwestern Atlantic
FIGURE 8. Neocallichirus grandimana (Gibbes, 1850): male (cl 24.2 mm) from Meireles, Ceará, Brazil (NHMW 25556), A, dorsal view; B, left lateral view; C, first chelipeds, right lateral view; D, frontal region, dorsal view. Scale bars: 20 mm [A–C], 4 mm [D].
Figure 1 in Bycatch of Asteroidea from shrimp trawl fishery in the southwestern Atlantic Ocean - Brazil
Figure 1. Map of the study area of Marine Protected of the Santana Archipelago, Macaé (RJ).
FIGURE 5 in Bryozoan framework composition in the oddly shaped reefs from Abrolhos Bank, Brazil, southwestern Atlantic: taxonomy and ecology
FIGURE 5. Scanning electron micrographs of five bryozoan species. A, B. Stylopoma variabilis n. sp. A. Detail of a small fragment showing some zooids and an ooecium. B. Frontal view of one ooecium showing the crescent-shaped aperture and the fused and asymmetrical labellum. C–E. Stylopoma hastata n. sp. C. Detail of part of the colony showing zooids and different kinds of avicularia: small and triangular lateral oral avicularia, two large and spear-shaped interzooidal avicularia, and a giant elongated and curved avicularium. D. Detail of the distal part of a zooid showing the orifice with U-shaped sinus, small condyles, and a triangular lateral avicularium. E. Detail of a giant avicularium with curved, elongate rostrum. F. Hippaliosina imperfecta, detail of two zooids with a pair of elongate distal avicularia. G. Utinga castanea, detail of the colony showing zooids with different kinds of avicularia and ooecia with a pair of small avicularia. H. Arthropoma cecilii, detail of fertile and infertile zooids showing orifices, perforate frontal walls and smooth ooecia.
FIGURE 1 in Bryozoan framework composition in the oddly shaped reefs from Abrolhos Bank, Brazil, southwestern Atlantic: taxonomy and ecology
FIGURE 1. Maps and in situ photographs of the study area and sampling method. A. Regional location of study area (black square—Abrolhos Bank, AB). B. Local reef habitats (light grey) and the two sampling sites (Parcel dos Abrolhos, PA and California Reef, CR). C. Aerial view of PA reefs southeastern from Abrolhos Archipelago. D. Closer aerial view of PA reefs. E. Core sampling using a submersible hydraulic drill by rebreather diving. F. CR pinnacle structure at 25 m depth. Photos: Áthila Bertoncini, F. Moraes and G. Amado-Filho.
FIGURE 7 in Bryozoan framework composition in the oddly shaped reefs from Abrolhos Bank, Brazil, southwestern Atlantic: taxonomy and ecology
FIGURE 7. In situ underwater photographs of six bryozoan species recorded from Abrolhos Bank, Brazil. A, B. Steginoporella magnilabris. C. Reptadeonella bipartita. D. Celleporaria atlantica. E. Stylopoma variabilis n. sp. F. Utinga castanea. G. Arthropoma cecilii. Photos by Áthila Bertoncini/Rede Abrolhos.
FIGURE 3 in Bryozoan framework composition in the oddly shaped reefs from Abrolhos Bank, Brazil, southwestern Atlantic: taxonomy and ecology
FIGURE 3. Scanning electron micrographs of four bryozoan species. A. Metrarabdotos aff. jani, detail of some autozooids showing orifice with small, slit-shaped sinus and lateral, elongate avicularium. B. Metrarabdotos sp., general view of the fragment showing some autozooids with almost circular orifice and a pair of lateral distal avicularium. C–G. Parasmittina distincta n. sp. C. General view of a fragment showing autozooids with two oral spine bases and different kinds of avicularia: shoe-shaped, triangular and elongate. D. General view of a fragment showing autozooids with almost circular orifice, large lyrula, three or four oral spine bases and shoe-shaped avicularium. E. Detail of orifice showing four oral spine bases, large anvil-shaped lyrula and prominent condyles. F. Detail of two autozooids with two and three distal oral spines and short and large triangular lateral avicularium. G. General view of a fragment showing autozooid with two oral distal spines, lyrula and a putative ooecium. H. Parasmittina abrolhosensis n. sp., general view of a fragment showing some autozooids with different kinds of avicularia, orifice circular with three to four oral spine bases and tall and narrow lyrula.
FIGURE 6 in Bryozoan framework composition in the oddly shaped reefs from Abrolhos Bank, Brazil, southwestern Atlantic: taxonomy and ecology
FIGURE 6. Scanning electron micrographs of three bryozoan species. A. Gemelliporina glabra, fragment showing orifices and a small avicularium. B, C. Plesiocleidochasma acuminata n. sp. B. General view of a fragment showing infertile zooids. C. Detail of some zooids showing cleithridiate orifices, a few scattered areolar pores and acuminate avicularia with rostra ending in a sharp and elongate tip. D–F. Rhynchozoon aff. rostratum. D. General view of a colony part showing some zooids with peristomial tubercles and frontal avicularia. E. Detail of some autozooids showing peristomial tubercles and frontal, triangular avicularia. F. Detail of one zooid showing distally beaded orifice and a suboral lateral avicularium with a triangular rostrum, and a suboral umbo.
FIGURE 2 in Bryozoan framework composition in the oddly shaped reefs from Abrolhos Bank, Brazil, southwestern Atlantic: taxonomy and ecology
FIGURE 2. Scanning electron micrographs of six bryozoan species. A. Steginoporella magnilabris, part of the colony showing the shape and disposition of the autozooids. B. Labioporella tuberculata, part of the colony with some autozooids. C, D. Crassimarginatella winstonae n. sp., general view of the colony with autozooids and one avicularium. E. Detail of the colony showing an interzooidal avicularium. E. Exechonella sp., general view of a colony fragment. F. Reptadeonella bipartita, general view of colony part showing some autozooids with elliptic orifice, median avicularium and ascopore. G, H. Celleporaria atlantica, detail of some zooids showing orifices, and suboral avicularia on umbos. H. Detail of an autozooid showing an avicularium at the base of the umbo.
FIGURE 4 in Bryozoan framework composition in the oddly shaped reefs from Abrolhos Bank, Brazil, southwestern Atlantic: taxonomy and ecology
FIGURE 4. Scanning electron micrographs of three bryozoan species. A–D. Parasmittina abrolhosensis n. sp. A. Detail of some autozooids showing the orifice, lyrula, condyles and three or four oral spine bases, and a lateral elongate avicularium. B. Detail of an elongate lateral avicularium with serrated rostrum. C. Detail of an autozooid showing the orifice with anvil, tall lyrula and a pair of condyles, and a large and spatulate avicularium. D. Detail of a fragment showing some fertile autozooids. E, F. Hemismittoidea asymmetrica n. sp. E. Detail of some autozooids showing the orifice with six and seven distal spines, large anvil-shaped lyrula, large and triangular avicularia, and a perforated ooecium. F. Detail of a fertile zooid showing a perforated ooecium and orifice with a pair of spines others, hidden by the ooecium. G, H: Stylopoma variabilis n. sp. G. Detail of a fragment showing autozooids and two elongate, spatulate interzooidal avicularia. H. Detail of the distal region of an autozooid showing the orifice with U-shaped sinus, condyles and small triangular lateral avicularium.
FIGURE 5 in Two new species of Psolus Oken from Brazil (Holothuroidea: Psolidae), with neotype designation and redescription of Psolus vitoriae Tommasi, 1971, and a key to the southwestern Atlantic and Magellanic species
FIGURE 5. (A–D) Psolus thandari sp. nov., holotype (MZUSP 593). (A) Dorsal view. Note the oral and anal valves and granules (white, black and grey arrows, respectively). (B) Detail of oral (left) and anal valves (right). (C) Detail of ambulacral feet in ventral view. Note the inner and outer rows of tube feet (black and white arrows, respectively). (D) Outline of the interradial plate (IR) and radial plate (R) of the calcareous ring. Note in D only the radial plate is notched. Scale bars: A, 3 mm; B, 0.5mm; C, 2 mm; D, 500 µm.
FIGURE 6 in Two new species of Psolus Oken from Brazil (Holothuroidea: Psolidae), with neotype designation and redescription of Psolus vitoriae Tommasi, 1971, and a key to the southwestern Atlantic and Magellanic species
FIGURE 6. (A–I) Psolus thandari sp. nov., holotype (MZUSP 593). SEM photomicrographs of the ossicles. (A) Scales from the dorsal region of the body (the arrow indicates the dorsal granules in top view). (B) Detail of the dorsal tubercle in lateral view (red arrow). (C) Plate from the dorsal region of the body. (D–E) Plates from the sole. (F) Smooth plate from the sole. (G– H) Knobbed rods from the tube feet. (I) End plate from tube feet. Scale bars: A, 250 µm, B, 100 µm, C–I, 50 µm.
FIGURE 3 in Two new species of Psolus Oken from Brazil (Holothuroidea: Psolidae), with neotype designation and redescription of Psolus vitoriae Tommasi, 1971, and a key to the southwestern Atlantic and Magellanic species
FIGURE 3. (A–F) Psolus tommasi sp. nov., holotype (MZUSP 583). (A) Dorsal view. Note the oral and anal valves (black and white arrows, respectively). (B) Anal and oral regions (above and below left, respectively), and detail of anal valves and oral teeth (black arrows), above and below right. (C) Detail of the lateral scales. (D) Detail of the ambulacral feet in ventral view. Note the inner and outer rows of tube feet (black and white arrows, respectively). (E) Interradial (IR) and radial (R) plates of the calcareous ring. (F) Outline of the interradial (IR) and radial (R) plates of the calcareous ring. Note in E, F that only the radial plate is notched. Scale bars: A, 6 mm; B, 1mm; C, 0. 3 mm; D, 1 mm; E–F 500 µm.
FIGURE 2 in Two new species of Psolus Oken from Brazil (Holothuroidea: Psolidae), with neotype designation and redescription of Psolus vitoriae Tommasi, 1971, and a key to the southwestern Atlantic and Magellanic species
FIGURE 2. (A–F) Psolus vitoriae Tommasi, 1971, neotype (MZUSP 1632). SEM photomicrographs of the ossicles. (A) Dorsal scales showing dorsal granules (white arrow). (B) Detail of the dorsal granules. (C) Curved, smooth, perforated plate from the dorsal region and sole: ventral (upper left) and dorsal view (upper right respectively). (D) Knobbed plate from the dorsal region and sole. (E) Rods from the ambulacral feet. (F) End plate from the ambulacral tube feet. Scale bars: A, 500 µm; B–F 50 µm.
FIGURE 1 in Two new species of Psolus Oken from Brazil (Holothuroidea: Psolidae), with neotype designation and redescription of Psolus vitoriae Tommasi, 1971, and a key to the southwestern Atlantic and Magellanic species
FIGURE 1. (A–F) Psolus vitoriae Tommasi, 1971, neotype (MZUSP 1632). (A) Dorsal view. Note the granules on the dorsal scales and oral and anal valves (red, white and grey arrows, respectively). (B) Oral and anal regions (above and below left, respectively) and detail of oral and anal valves (above and below right, respectively). (C) Detail of the lateral scales (white arrow). (D) Detail of the ambulacral feet and Polian vesicles in ventral view (red and white arrows, respectively). (E) Interradial (IR) and radial (R) plates of the of calcareous ring in dorsal view. (F) Outline of the interradial (IR) and radial (R) plates of the calcareous ring in dorsal view. Note in E, F the radial and interradial plates notched. Scale bars: A, 4 mm; B, 500 µm; C, 0,5 mm; D–F 500 µm.
FIGURE 4 in Two new species of Psolus Oken from Brazil (Holothuroidea: Psolidae), with neotype designation and redescription of Psolus vitoriae Tommasi, 1971, and a key to the southwestern Atlantic and Magellanic species
FIGURE 4. Psolus tommasi sp. nov., holotype (MZUSP 583). SEM photomicrographs of the ossicles. (A) Dorsal scales. (B) spheroid bodies from dorsal/lateral scales. (C) Knobbed, single layered plate from sole. (D) Smooth, perforated plate from sole. (E) Rods from tube feet. Scale bars: A, 500 µm; B, 50 µm; C, 70 µm; (D) 40 µm and (E) 100 µm.
FIGURE 10. Petta alissoni n in Pectinariidae (Annelida, Terebelliformia) from off southeastern Brazil, southwestern Atlantic
FIGURE 10. Petta alissoni n. sp. (Paratype 2, ZUEC Pol 21343), SEM, (A). Entire worm, right ventro-lateral view; (B). Close up of the anterior end, ventral view; (C). Close up of the cirri of the ventral lobe of segment 2; (D). Notochaetae; (E). Branchiae; (F). Scaphe, dorsal view, arrows point to scaphal hooks. Numbers refer to segments; bt = buccal tentacles; cr = cirri of ventral lobe of segment 2; cv = cephalic veil; tc1 and tc2 = tentacular cirri of segments 1 and 2, respectively.
FIGURE 9. Petta alissoni n in Pectinariidae (Annelida, Terebelliformia) from off southeastern Brazil, southwestern Atlantic
FIGURE 9. Petta alissoni n. sp. (Paratype 7, ZUEC Pol 7890), (A). Anterior end, ventral view; (B, C). Close ups of the anterior end, ventral and right lateral views, respectively; (D, E) Scaphe, ventral view, under progressively higher magnifications.
FIGURE 8. Petta alissoni n in Pectinariidae (Annelida, Terebelliformia) from off southeastern Brazil, southwestern Atlantic
FIGURE 8. Petta alissoni n. sp. (Holotype, ZUEC Pol 7891), (A–C). Anterior end, ventral view, under progressively higher magnifications; (D). Posterior end, ventral view; (E–G). Close ups of the anterior end, right lateral, dorsal and left lateral views, respectively, arrows point to branchiae; (H–J). scaphe, left lateral, dorsal and ventral views, respectively. Numbers refer to segments; bt = buccal tentacles; cr = cirri of ventral lobe of segment 2; cv = cephalic veil; tc1 and tc2 = tentacular cirri of segments 1 and 2, respectively.
FIGURE 7. Pectinaria nonatoi n in Pectinariidae (Annelida, Terebelliformia) from off southeastern Brazil, southwestern Atlantic
FIGURE 7. Pectinaria nonatoi n. sp. (Paratype 10, ZUEC Pol 21340), SEM, (A–D). Uncini; (E). Close up of anterior pegs of uncini; (F–H). Scaphal hooks under different angles.
FIGURE 6. Pectinaria nonatoi n in Pectinariidae (Annelida, Terebelliformia) from off southeastern Brazil, southwestern Atlantic
FIGURE 6. Pectinaria nonatoi n. sp. (Paratype 10, ZUEC Pol 21340), SEM, (A–C). Paleae; (D). Close up of foliaceous process at transition between shaft and blade of notochaeta of anterior row; (E). General view of notochaetae of two notopodia; (F, G). Notochaetae of anterior row, arrows in (F) point to foliaceous process at transition between shaft and blade.
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Allen Brain Atlas
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International Brain Laboratory public data
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OpenNeuro
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