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31 results for “Osteoglossidae”
Fig. 61. Osteoglossidae Bonaparte, 1832 in Taxonomy and biostratigraphy of the elasmobranchs and bony fishes (Chondrichthyes and Osteichthyes) of the lower-to-middle Eocene (Ypresian to Bartonian) Claiborne Group in Alabama, USA, including an analysis of otoliths
Fig. 61. Osteoglossidae Bonaparte, 1832 and Ariidae Berg, 1958, elements. A–H. Osteoglossidae. A–B. Tooth, MSC 35778.1, lower Tallahatta Formation. A. Lingual view. B. Basal view. C–D. Tooth, MSC 38444, Tallahatta/Lisbon formation contact zone, courtesy of James Lowery. C. Lateral view. D. Basal view. E–F. Tooth, MSC 37515, basal Gosport Sand. E. Lingual view. F. Basal view. G–H. Tooth, MSC 37307.1, basal Lisbon Formation. G. Lingual view. H. Basal view. — I–Q. Ariidae. I–L. Pectoral spine, MSC 37122, Tallahatta/Lisbon formation contact zone, courtesy of Bruce Relihan. I. Anterior view. J. Posterior view. K. Lateral view. L. Transverse section. M–O. Pectoral spine, MSC 2398, Gosport Sand. M. Anterior view. N. Dorsal view. O. Posterior view. P–Q. Pectoral spine, MSC 37111, Tallahatta/Lisbon formation contact zone, courtesy of Bruce Relihan. P. Lateral view. Q. Posterior view. Scale bars: A–H = 2 mm; I–Q = 1 cm.
Figure 2 in Morphological and histological data on the structure of the lingual toothplate of Arapaima gigas (Osteoglossidae; Teleostei)
Figure 2. - Arapaima gigas. Dorsal view of the hyoid and branchial skeleton (After Taverne, 1977). (Bbr 1 = Basibranchial; Cbr 1-5 = Ceratobranchial; Chy = Ceratohyal; DmBr 1-5 = Dermobasibranchial; Ebr = Epibranchial; Ehy = Epihyal; HBr 1-3 = Hypobranchial; lb = gill rackers; PBr = Pharyngobranchial 2-4). Scale bar = 2 cm.
Figure 1 in Morphological and histological data on the structure of the lingual toothplate of Arapaima gigas (Osteoglossidae; Teleostei)
Figure 1. - Arapaima gigas. Lateral view of the skull (After Taverne, 1977). (Ang = Angular; Ant = Antorbital; Chy = Ceratohyal; Den = Dental; Dsph = Dermosphenotic; Iop = Interopercular; Iorb 1-4 = Infraorbitar; Iop = Infraopercular; Mx = Maxilla; Op = Opercular; Pmx = Premaxilla; Pop = Preopercular; Pt Posttemporal; Sop = Subopercular). Scale bar = 2 cm.
Figure 4 in Morphological and histological data on the structure of the lingual toothplate of Arapaima gigas (Osteoglossidae; Teleostei)
Figure 4. - Arapaima gigas. Dorsal view of the surface of the lingual dentary plate showing numerous teeth. Axis xx' and yy' demarcate the localisation of the transverse sections and the rectangles a and b point to the frontal sections. Scale bar = 1 cm. Figure 5. - Arapaima gigas. Frontal view of the cross section (yy') of the lingual dentary plate. Detail of the spatial arrangement of the bony trabeculae between the two bony laminae. A sagittally-sectioned tooth is squared (see Fig. 7). Cm = medullar cavity. Scale bar = 2 mm. Figure 6. - Arapaima gigas. External view of the lingual dentary plate showing the translucent tooth tips (arrows). Scale bar = 1 mm. Figure 7. - Arapaima gigas. Detail of the pulp cavity of the lingual tooth squared in Fig. 5. We observe thin infolds of the dentine wall in the pulp cavity (arrowheads). Scale bar = 250 µm.
Figure 3 in Morphological and histological data on the structure of the lingual toothplate of Arapaima gigas (Osteoglossidae; Teleostei)
Figure 3. - Arapaima gigas. Dorsal view of cleared and stained gill arches from specimens of various ontogenetic stages. The visceral arches on the left are in anatomical position, whilst those on the right are unfolded. A: Specimen UERJ PMB-127 (16.7 mm SL). The endoskeleton is fully cartilaginous, lacking any ossification centre, but showing a few teeth (arrowheads) developing in front of the line of copulas between the hyoid arch and second branchial arch (see detail Fig. 3B). B: Same specimen. Detail of the anterior half of the line of copulas showing lingual teeth (arrowheads). C: Specimen UERJ PMB-135 (27.6 mm SL). Basibranchial elements 1-3 and "hypo", "cerato" and "epi" elements show clear areas of diaphyseal ossification. Gill rackers and branchiostegal rays are ossified. D: Specimen UERJ PMB-159 (62.2 mm SL). The tongue plate (basibranchial toothplate) is clearly differentiated. There is at least one posterior toothplate on the surface of basibranchial 4 (arrowhead). E: Same specimen. Detail of the first two basibranchials showing many lingual teeth (arrowheads). F: Specimen UERJ PMB-106 (110 mm SL). The entire hyoid (except basihyal) and branchial skeleton are ossified, with the only joint areas remaining cartilaginous (coloured blue). Some small bony toothplates are located posterior to the line of copulas (arrowheads) at the base of the fifth gill arch. (Ab1-Ab5 = gill arches 1-5; Ah = hyoid arch; bb1-bb4 = basibranchial 1-4; bh = basihyal; cb1 = ceratobranchial 1; ch = ceratohyal; eb1-4 = epibranchial 1-4; eh = epihyal; hb1 = hypobranchial 1; hh = hypohyal; lb = gill rakers; lc = line copulas; pd Ab4 = branchial arch 4 toothplate; pdl = lingual (basibranchial) toothplate; rb = branchiostegal rays). Scale bars: A, C, E = 1 mm; B = 250 µm; D = 5 mm; F = 10 mm.
FIGURE 8 in Quantitative analysis of interspecific and ontogenetic variation in Osteoglossum species (Teleostei: Osteoglossiformes: Osteoglossidae)
FIGURE 8. Principal component analysis including adults of Osteoglossum species. (a) plot characters factor coordinates (b) plot case factor coordinates. Numbers represents species and classes, where, 2= adults of O. ferreirai; 4= adults of O. bicirrhosum.
FIGURE 7 in Quantitative analysis of interspecific and ontogenetic variation in Osteoglossum species (Teleostei: Osteoglossiformes: Osteoglossidae)
FIGURE 7. Principal component analysis including postembryos and juveniles of Osteoglossum species. (a) plot characters factor coordinates (b) plot case factor coordinates. Numbers represents species and classes, where, 1= postembryos and juveniles of O. ferreirai; 3= postembryos and juveniles of O. bicirrhosum.
FIGURE 1 in Quantitative analysis of interspecific and ontogenetic variation in Osteoglossum species (Teleostei: Osteoglossiformes: Osteoglossidae)
FIGURE 1. The two Osteoglossum species: (a) adult specimen of O. bicirrhosum; (b) adult specimen of O. ferreirai; (c) juvenile specimen of O. bicirrhosum; (d) juvenile specimen of O. ferreirai.
FIGURE 6. Correlation between characters 4–5 and 1–6 in Quantitative analysis of interspecific and ontogenetic variation in Osteoglossum species (Teleostei: Osteoglossiformes: Osteoglossidae)
FIGURE 6. Correlation between characters 4–5 and 1–6, including all size classes of Osteoglossum species. Numbers represent species and classes, where, 1= postembryos and juveniles of O. ferreirai; 2= adults of O. ferreirai; 3= postembryos and juveniles of O. bicirrhosum; 4= adults of O. bicirrhosum.
FIGURE 3 in Quantitative analysis of interspecific and ontogenetic variation in Osteoglossum species (Teleostei: Osteoglossiformes: Osteoglossidae)
FIGURE 3. Principal component analysis including all size classes of Osteoglossum species. (a) plot characters factor coordinates (b) plot case factor coordinates. Numbers represent species and classes, where, 1= postembryos and juveniles of O. ferreirai; 2= adults of O. ferreirai; 3= postembryos and juveniles of O. bicirrhosum; 4= adults of O. bicirrhosum.
FIGURE 4. Correlation between characters 13–14 and 1–2 in Quantitative analysis of interspecific and ontogenetic variation in Osteoglossum species (Teleostei: Osteoglossiformes: Osteoglossidae)
FIGURE 4. Correlation between characters 13–14 and 1–2, including all size classes of Osteoglossum species. Numbers represent species and classes, where, 1= postembryos and juveniles of O. ferreirai; 2= adults of O. ferreirai; 3= postembryos and juveniles of O. bicirrhosum; 4= adults of O. bicirrhosum.
FIGURE 2 in Quantitative analysis of interspecific and ontogenetic variation in Osteoglossum species (Teleostei: Osteoglossiformes: Osteoglossidae)
FIGURE 2. Morphometric characters used in Aitchinson analysis: Standard length (1–6); head length (1–2); premaxillacleithrum length (1–3); predorsal length (1–4); postdorsal length (1–5); preanal length (1–8); prepectoral length (1–10); premaxillacoracoid length (1–11); premaxillainfraorbital length (1–12); snout length (1–13); premaxillaopercular length (1–15); eye diameter (13–14); occiputdorsal length; (2–4); occiputpostdorsal length (2–5); occiputcaudal length (2–6); occiputanal length (2–8); occiputpectoral length (2–10); head depth (2–11); dorsal fin length (4–5); analdorsal length (8–4); analpostdorsal length (8–5); anal fin length (8–7).
FIGURE 10 in Intraspecific variation of the caudal fin skeleton in Osteoglossum bicirrhosum Cuvier 1829 (Teleostei: Osteoglossomorpha: Osteoglossidae)
FIGURE 10. Caudal skeleton of Osteoglossum bicirrhosum as figured by: a) Taverne (1977); b) Hilton (2003); c) and d) Greenwood (1967). All illustrations are redrawn from these authors.
FIGURE 6 in Intraspecific variation of the caudal fin skeleton in Osteoglossum bicirrhosum Cuvier 1829 (Teleostei: Osteoglossomorpha: Osteoglossidae)
FIGURE 6. Caudal skeleton of Osteoglossum bicirrhosum. Specimens: a) UERJ-PMB 24; b) UERJ-PMB 31; c) MZUSP uncatalogued specimen. Anterior faces left.
FIGURE 9 in Intraspecific variation of the caudal fin skeleton in Osteoglossum bicirrhosum Cuvier 1829 (Teleostei: Osteoglossomorpha: Osteoglossidae)
FIGURE 9. Normal and teratological specimens of Osteoglossum bicirrhosum: a) caudal region of normal specimen before and after preparation with dermestid beetles (UERJ-PMB 48); arrows indicate caudal peduncle; b) caudal region of teratological specimen, with dorsal, caudal and anal fins confluent, before and after preparation with dermestid beetles
FIGURE 3 in Intraspecific variation of the caudal fin skeleton in Osteoglossum bicirrhosum Cuvier 1829 (Teleostei: Osteoglossomorpha: Osteoglossidae)
FIGURE 3. Caudal skeleton of Osteoglossum bicirrhosum. Specimens: a) MZUSP 3526-d; b) MZUSP 82312-18622; c) MZUSP 82331-02; d) MZUSP 22080-01; e) UERJ-PMB 25; f) MZUSP 21875-02. Bone is shown in white, and cartilage in black. Anterior faces left.
FIGURE 1. a in Intraspecific variation of the caudal fin skeleton in Osteoglossum bicirrhosum Cuvier 1829 (Teleostei: Osteoglossomorpha: Osteoglossidae)
FIGURE 1. a) The bonytongue Osteoglossum bicirrhosum, MNRJ 1212 (306 mm SL); b) Map with the geographic distribution of the specimens examined in the present study: I. Overview of South America river drainages. The spots represent specimen localities found in the MNRJ – Neodat search page; II. Close showing the localities in the sampled area. Assigned numbers depicted in Annex 1; III. Detail of the three sub-basins with the localities of the specimens used in our geographical comparisons. Maps were composed based on the online maps from IBGE (Instituto Brasileiro de Geografia e Estatística) and from the Neodat Project – MNRJ page.
FIGURE 5 in Intraspecific variation of the caudal fin skeleton in Osteoglossum bicirrhosum Cuvier 1829 (Teleostei: Osteoglossomorpha: Osteoglossidae)
FIGURE 5. Caudal skeleton of Osteoglossum bicirrhosum. Specimens: a) UERJ-PMB 11; b) UERJ-PMB 12; c) UERJ- PMB 13; d) UERJ-PMB 14. Bone is shown in white, and cartilage in black. Anterior faces left.
FIGURE 8 in Intraspecific variation of the caudal fin skeleton in Osteoglossum bicirrhosum Cuvier 1829 (Teleostei: Osteoglossomorpha: Osteoglossidae)
FIGURE 8. Caudal skeleton of Osteoglossum bicirrhosum: a) "Typical" condition. ["A"]. b) Schematic drawings of the main patterns ["A", "B", "C", "D", "E" and "F"] found in specimens from the three selected localities [Negro, Trombetas and Tapaj®AEs rivers]. Varying structures are highlighted in blue. Bone is shown in white, and cartilage in black. Anterior faces left. c) Histograms showing the distribution [expressed in percentage] of the varying endoskeletal patterns in specimens from the three localities.
FIGURE 2 in Intraspecific variation of the caudal fin skeleton in Osteoglossum bicirrhosum Cuvier 1829 (Teleostei: Osteoglossomorpha: Osteoglossidae)
FIGURE 2. Caudal skeleton of Osteoglossum bicirrhosum. Specimens: a) MZUSP 82312-18630; b) MZUSP 82319- 30738; c) MZUSP 3526-e; d) MZUSP 82312-18618; e) MZUSP 82312-18623; f) MZUSP 18290-d. Anterior faces left.
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