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971 results for “Southwestern Atlantic”
FIGURE 3 in Undercover speciation of wentletraps (Caenogastropoda: Epitoniidae) in the Southwestern Atlantic
FIGURE 3. Epitonium fabrizioi Pastorino & Penchaszadeh, 1998, shell and operculum. A. Holotype (MLP-Ma 5402). B. Specimen from Puerto Madryn (MACN-In 9171-22). C, D, G, H, K. Specimens from Punta Cuevas (MACN-In 40375). K. Detail of operculum sculpture. E, F. Specimen from Las Grutas (MACN-In 40367). I, J. Specimen from Puerto Lobos (MACN- In 40374). J. Detail of teleoconch sculpture at last whorl. Scale bars: A–C, E, F, I = 5 mm; D, H = 2 mm; G, J = 500 µm; K = 20 µm.
FIGURE 2 in Undercover speciation of wentletraps (Caenogastropoda: Epitoniidae) in the Southwestern Atlantic
FIGURE 2. Epitonium georgettinum, radula and jaw. A, B, E. Specimen from off Mar del Plata, with "blade-like" ribs (MACN-In 12211). C, D, F. Specimen from Playas Doradas with "cord-like" ribs (same specimen as Fig. 1I: MACN-In 40365). A–D. Radula. A. Half radular field. B, C. Intermediate teeth. D. Detail of teeth of central field. E, F. Jaw. E. Anterior margin. F. Detail of marginal denticles. Scale bars: A = 100 µm; B, C, E = 20 µm; D = 50 µm; F = 10 µm.
FIGURE 9 in The reef fish assemblage of the Laje de Santos Marine State Park, Southwestern Atlantic: annotated checklist with comments on abundance, distribution, trophic structure, symbiotic associations, and conservation
FIGURE 9. Selected examples of symbiotic associations between reef fishes recorded at the Laje de Santos Marine State Park. The barber goby Elacatinus figaro cleans the head of the jubauna reeffish Chromis jubauna hovering close to the goby's cleaning station (a); the same cleaner species inspects the back of the nocturnal squirrelfish Holocentrus adscensionis that approached its cleaning station (b); juvenile spotfin hogfish Bodianus pulchellus cleans the mouth of the spotted moray Gymnothorax moringa (c); adult of the same hogfish species cleans the head of the jubauna reeffish (d); the wrasse Halichoeres sp. n. follows a group of the white trevally Pseudocaranx dentex, which stir sediment clouds while feeding on the sandy bottom (e); the dusky grouper Mycteroperca marginata closely follows the goldspotted snake eel Myrichthys ocellatus that nudges its head in rocky crevices (f); the spotfin hogfish follows the flying gurnard Dactylopterus volitans moving close to the bottom (g); two diskfish Remora remora attached near the mouth of the Atlantic manta Manta birostris (h).Photos: M. Andrade (h); A. Carvalho Filho (e-f); J. P. Krajewski (a); O.J. Luiz Jr. (c-d, g); A. de Luca Jr. (b).
FIGURE 8 in The reef fish assemblage of the Laje de Santos Marine State Park, Southwestern Atlantic: annotated checklist with comments on abundance, distribution, trophic structure, symbiotic associations, and conservation
FIGURE 8. Cluster analysis of habitat types at the Laje de Santos Marine State Park based on the similarity of species composition. The relative distribution of trophic categories in each habitat is shown in the graphs. CAR = Carnivore; MIF = Mobile Invertebrate Feeder; OMN = Omnivore; PIS = Piscivore; PLK = Planktivore; ROVH = Roving Herbivore; SIF = Sessile Invertebrate Feeder; TERH = Territorial Herbivore.
FIGURE 10 in The reef fish assemblage of the Laje de Santos Marine State Park, Southwestern Atlantic: annotated checklist with comments on abundance, distribution, trophic structure, symbiotic associations, and conservation
FIGURE 10. Targeted and endangered top-predators recorded at the Laje de Santos Marine State Park. The dusky groupers Mycteroperca marginata are very common in the area, but attain unusual large size and are largely unafraid of divers, contrarily to what happens at other unprotected sites (a); the goliath grouper Epinephelus itajara (b) and the cubera snapper Lutjanus cyanopterus (c). Several individuals of these two latter species have been seen at in the Laje de Santos in the last two years, after a period of more than ten years over which they remained unrecorded at the site. Photos: A. Carvalho-Filho (c); L. Cheidde (b); A. Valente (a).
FIGURE 3 in The reef fish assemblage of the Laje de Santos Marine State Park, Southwestern Atlantic: annotated checklist with comments on abundance, distribution, trophic structure, symbiotic associations, and conservation
FIGURE 3. Some abundant fish species at the Laje de Santos Marine State Park. The tomtate grunt Haemulon aurolineatum (a); adult and juvenile sergeant major Abudefduf saxatilis (b); the brown chromis Chromis multilineata (c); juvenile dusky damselfish Stegastes fuscus (d); intermediate individual of the jubauna reeffish Chromis jubauna (e); the silver porgy Diplodus argenteus (f); juvenile porkfish Anisotremus virginicus (g); the ringneck blenny Parablennius pilicornis (h). Photos: O.J. Luiz Jr, except (e) by L.F. Cassino.
FIGURE 6 in The reef fish assemblage of the Laje de Santos Marine State Park, Southwestern Atlantic: annotated checklist with comments on abundance, distribution, trophic structure, symbiotic associations, and conservation
FIGURE 6. Selected fish species that dwell in the deep reef (30-45 m) community at the Laje de Santos State Marine Park. The deep-reef wrasse Halichoeres sp.n. (a); the reeffish Chromis cf. enchrysura (b); the red porgy Pagrus pagrus (c); the Brazilian sandperch Pinguipes brasilianus (d); the sea basses Acanthistius brasilianus (e), A. patachonicus (f) and Dules auriga (g); the snowy grouper Hyporthodus niveatus (h). The former species (a) is probably a Brazilian endemic, closely related to the Northwestern Atlantic species H. bathyphilus. The distinctive status from its sister species is supported by molecular mtDNA analysis (L.A. Rocha pers. comm.).The last six species (c-h) ranges southward to temperate Patagonian rocky reefs. Photos: A. Carvalho-Filho (e-g); O.J. Luiz Jr. (a-d, h).
FIGURE 4 in The reef fish assemblage of the Laje de Santos Marine State Park, Southwestern Atlantic: annotated checklist with comments on abundance, distribution, trophic structure, symbiotic associations, and conservation
FIGURE 4. Relative proportions of geographic distribution types of the species observed at the Laje de Santos Marine State Park. Br = Brazilian Province; CE = Central Atlantic; CT = Circumtropical. EA = Eastern Atlantic; SCa = Southern Caribbean; SE = Southeastern Brazil; TA = Trans-Atlantic; WA = Western Atlantic.
FIGURE 5 in The reef fish assemblage of the Laje de Santos Marine State Park, Southwestern Atlantic: annotated checklist with comments on abundance, distribution, trophic structure, symbiotic associations, and conservation
FIGURE 5. Selected Brazilian endemic reef fish species that occur at the Laje de Santos Marine State Park. The barber goby Elacatinus figaro (a); the Brazilian yellowcheek wrasse Halichoeres dimidiatus, initial phase (b); the Brazilian wrasse Halichoeres brasiliensis, intermediate phase (c); the Noronha wrasse Thalassoma noronhanum, terminal male (d); the tuiupiranga parrotfish Sparisoma tuiupiranga, initial phase (e); Zelinda's parrotfish Scarus zelindae, initial phase (f); the reef parrotfish Sparisoma amplum, initial phase (g); the gray parrotfish Sparisoma axillare, terminal male (h). Photos: O.J. Luiz Jr, except (d) by I. Cavas.
FIGURE 4. Caulobothrium pieroi n in Cestodes of Pseudobatos horkelii (Müller and Henle) (Rhinopristiformes) including Rhinebothrium quequense n. sp. (Rhinebothriidea) and Caulobothrium pieroi n. sp. ("Tetraphyllidea") from the southwestern Atlantic
FIGURE 4. Caulobothrium pieroi n. sp. from Pseudobatos horkelii (Müller and Henle), line drawings. A—Mature worm (holotype MACN-Pa No. 779). B—Scolex (holotype MACN-Pa No. 779). C—Terminal proglottid (paratype MACN-Pa No. 780/1).
FIGURE 5. Caulobothrium pieroi n in Cestodes of Pseudobatos horkelii (Müller and Henle) (Rhinopristiformes) including Rhinebothrium quequense n. sp. (Rhinebothriidea) and Caulobothrium pieroi n. sp. ("Tetraphyllidea") from the southwestern Atlantic
FIGURE 5. Caulobothrium pieroi n. sp. from Pseudobatos horkelii (Müller and Henle), light micrographs of cross sections of a mature proglottid. A—Anterior to genital atrium. B—At the level of the genital atrium. C—posterior to the cirrus sac. D—At the level of the ovarian isthmus. Abbreviations: cs—cirrus sac, ov—ovary, t—testis, ud—uteroduct, ut—uterus, vf—vitelline follicle, vg—vagina, vod—ventral osmoregulatory duct.
FIGURE 2. Rhinebothrium quequense n in Cestodes of Pseudobatos horkelii (Müller and Henle) (Rhinopristiformes) including Rhinebothrium quequense n. sp. (Rhinebothriidea) and Caulobothrium pieroi n. sp. ("Tetraphyllidea") from the southwestern Atlantic
FIGURE 2. Rhinebothrium quequense n. sp. from Pseudobatos horkelii (Müller and Henle), scanning electron micrographs. A—Scolex, small letters indicate locations of detail shown in Figs. B, D and K. B—Detail of the anterior margin of bothridium including anteriomost loculi and transverse septum. C—Surface of loculus, gladiate spinitriches and acicular filitriches. D— Central constriction of bothridium. E—Proximal bothridial surface near bothridial margin, aristate gladiate spinitriches and capilliform filitriches. F—Proximal bothridial surface near stalk, large aristate gladiate spinitriches and capilliform filitriches. G—Surface of bothridial stalk, large aristate gladiate spinitriches and capilliform filitriches. H—Surface of transverse septum, aristate gladiate spinitriches and capilliform filitriches. I—Surface of apex of scolex, capilliform filitriches. J—Surface of cephalic peduncle, capilliform filitriches. K—Detail of posterior margin of bothridium, proximal surface.
FIGURE 1. Rhinebothrium quequense n in Cestodes of Pseudobatos horkelii (Müller and Henle) (Rhinopristiformes) including Rhinebothrium quequense n. sp. (Rhinebothriidea) and Caulobothrium pieroi n. sp. ("Tetraphyllidea") from the southwestern Atlantic
FIGURE 1. Rhinebothrium quequense n. sp. from Pseudobatos horkelii (Müller and Henle), line drawings. A—Mature worm (holotype MACN-Pa No. 777). B—scolex (paratype MACN-Pa No. 778/1). C—Terminal proglottid (holotype MACNPa No. 777). D—Detail of the terminal genitalia of a mature proglottid (holotype MACN-Pa No. 777).
FIGURE 3. Rhinebothrium quequense n in Cestodes of Pseudobatos horkelii (Müller and Henle) (Rhinopristiformes) including Rhinebothrium quequense n. sp. (Rhinebothriidea) and Caulobothrium pieroi n. sp. ("Tetraphyllidea") from the southwestern Atlantic
FIGURE 3. Rhinebothrium quequense n. sp. from Pseudobatos horkelii (Müller and Henle), light micrographs of cross sections of a mature proglottid. A—anterior to the genital atrium. B—at the level of the genital atrium showing the cirrus sac. C—at the level of the genital atrium showing the vagina. D—anterior to the ovarian isthmus. Abbreviations: cs—cirrus sac, dod—dorsal osmoregulatory duct, ov—ovary, t—testis, ut—uterus, vd—vas deferens, vf—vitelline follicle, vg—vagina, vod—ventral osmoregulatory duct.
FIGURE 6 in Cestodes of Pseudobatos horkelii (Müller and Henle) (Rhinopristiformes) including Rhinebothrium quequense n. sp. (Rhinebothriidea) and Caulobothrium pieroi n. sp. ("Tetraphyllidea") from the southwestern Atlantic
FIGURE 6. Light micrographs of Caulobothrium species from the southwestern Atlantic. A—Caulobothrium pieroi n. sp., detail of the anterior loculus with apical sucker (arrow) (holotype MACN-Pa No. 779). B—Caulobothrium pieroi n. sp., detail of the posterior loculus (double) (paratype MACN-Pa No. 780/2). C—Caulobothrium uruguayense, showing two columns of paired loculi (arrows) (paratype USNM No. 1371263). D—Caulobothrium ostrowskiae, anterior portion of bothridium showing a single anteriormost loculus (paratype USNM No. 1371264).
FIGURE 4 in Leuconidae Sars, 1878 (Crustacea: Cumacea) from the southwestern Atlantic, filling the distribution gap along the Brazilian coast
FIGURE 4. Leucon (Alytoleucon) rhuanae sp. nov. Paratype (lost in the fire): Pereopods, pleopod and uropods; preparatory male, 4.1 mm, #HAB3 E10, MNRJ 28925.
FIGURE 3 in Leuconidae Sars, 1878 (Crustacea: Cumacea) from the southwestern Atlantic, filling the distribution gap along the Brazilian coast
FIGURE 3. Leucon (Alytoleucon) rhuanae sp. nov. Paratype (lost in the fire): habitus, antenna 1, mandible, maxilla 1–2 and maxillipeds; preparatory male, 4.1 mm, #HAB3 E10, MNRJ 28925. Holotype: antenna 1 flagellum (fl): mature male, 5.1 mm, #SANSED3 P03-R1 (0–2), MNRJ 30608.
FIGURE 8 in Leuconidae Sars, 1878 (Crustacea: Cumacea) from the southwestern Atlantic, filling the distribution gap along the Brazilian coast
FIGURE 8. Leucon (Macrauloleucon) watlingi sp. nov. Holotype: habitus without appendages and carapace and pereonite 1–2 with zoom; preparatory female, 3.6 mm, #SANSED7 D09-R1 (0–2), MNRJ 30544.
FIGURE 12 in Leuconidae Sars, 1878 (Crustacea: Cumacea) from the southwestern Atlantic, filling the distribution gap along the Brazilian coast
FIGURE 12. Eudorella helenae sp. nov. Paratype (Lost in the fire): carapace female, antenna 1–2, mandible, maxilla 1–2 and maxillipeds; mature female, 3.1 mm, #HAB11 A3, MNRJ 28957. Additional material (lost in the fire): Carapace preparatory male: 2.5 mm, #HAB11 A3, MNRJ 28958.
FIGURE 15 in Leuconidae Sars, 1878 (Crustacea: Cumacea) from the southwestern Atlantic, filling the distribution gap along the Brazilian coast
FIGURE 15. Gyneleucon tripedium sp. nov. Pereopods and uropods: mature male, 1.9 mm, #AMB14 F3, MNRJ 28968.
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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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