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23 results for “Mastiglanis”
Figure 14 in Mastiglanis durantoni from French Guyana, a second species in the genus (Siluriformes: Heptapteridae), with a CT scan survey of phylogenetically-relevant characters
Figure 14. – Schematic illustrations of the occipital process and part of posterior cranial fontanel in species of Mastiglanis. A: Mastiglanis durantoni, MZUSP 118119, paratype; B-G: M. asopos, B: MZUSP 93307 (Rio Negro basin), C: MZUSP 81411 (Rio Negro basin), D: MZUSP 86958 (Rio Preto da Eva basin), E-G: MZUSP 97150 (Rio Xingu basin). Scale bars = 1 mm.
Figure 13 in Mastiglanis durantoni from French Guyana, a second species in the genus (Siluriformes: Heptapteridae), with a CT scan survey of phylogenetically-relevant characters
Figure 13. – CT scan image of posterior portion of skull and anterior part of vertebral column of Mastiglanis durantoni, MZUSP 118118, paratype, ventral view. Anterior to top. Abbreviations: bo, basioccipital; ex, exoccipital; fr, frontal; pa, parasphenoid; par, parapophysis; plr, pleural rib; pro, prootic; pt, pterotic; ptr, pterosphenoid; pts, posttemporo-supracleithrum; sph, sphenotic; tp4a, anterior ramus of transverse process of vertebra 4; tp4p, posterior ramus of transverse process of vertebra 4; tp5, transverse process of vertebra 5; tr, tripus; trs, transscapular process; vc5-7, vertebral centra 5 to 7.
Figure 12 in Mastiglanis durantoni from French Guyana, a second species in the genus (Siluriformes: Heptapteridae), with a CT scan survey of phylogenetically-relevant characters
Figure 12. – CT scan image of suspensorium of Mastiglanis durantoni, MZUSP 118118, paratype, lateral view. Anterior to left. Abbreviations: ent, entopterygoid; hy, hyomandibula; io, interopercle; mt, metapterygoid; op, opercle; po, preopercle; qu, quadrate; sbpo, subpreopercle; spo, suprapreopercle.
Figure 9 in Mastiglanis durantoni from French Guyana, a second species in the genus (Siluriformes: Heptapteridae), with a CT scan survey of phylogenetically-relevant characters
Figure 9. – Live specimen of Mastiglanis durantoni n. sp, lateral view, French Guiana (photo by P.Y. Le Bail). Specimen not preserved.
Figure 6 in Mastiglanis durantoni from French Guyana, a second species in the genus (Siluriformes: Heptapteridae), with a CT scan survey of phylogenetically-relevant characters
Figure 6. – CT scan image of premaxilla of Mastiglanis durantoni, MZUSP 118118, paratype. A: Dorsal view; B: Ventral view. Anterior to top.
Figure 7 in Mastiglanis durantoni from French Guyana, a second species in the genus (Siluriformes: Heptapteridae), with a CT scan survey of phylogenetically-relevant characters
Figure 7. – CT scan image of lower jaw of Mastiglanis durantoni, MZUSP 118118, paratype, lateral view, left side, anterior to left. Abbreviations: aa, anguloarticular; den, dentary; lsp, opening for latero-sensory pore; tr, trabeculae.
Figure 5 in Mastiglanis durantoni from French Guyana, a second species in the genus (Siluriformes: Heptapteridae), with a CT scan survey of phylogenetically-relevant characters
Figure 5. – CT scan image of anterior portion of neurocranium of Mastiglanis durantoni, MZUSP 118118, paratype, dorsal view. Abbreviations: fr, frontal; le, lateral ethmoid; me, mesethmoid.
Figure 3 in Mastiglanis durantoni from French Guyana, a second species in the genus (Siluriformes: Heptapteridae), with a CT scan survey of phylogenetically-relevant characters
Figure 3. – Heads in ventral view, showing difference in upper-jaw lengths. A: Mastiglanis durantoni, n. sp., paratype, MZUSP 118118, 46.9 mm SL; B: Mastiglanis asopos, paratype, MZUSP 7446, 43.9 mm SL.
Figure 2 in Mastiglanis durantoni from French Guyana, a second species in the genus (Siluriformes: Heptapteridae), with a CT scan survey of phylogenetically-relevant characters
Figure 2. – Mastiglanis durantoni, n. sp., holotype, MNHN 2015- 244, 63.7 mm SL. (A) Dorsal and (B) ventral views of head.
Figure 1 in Mastiglanis durantoni from French Guyana, a second species in the genus (Siluriformes: Heptapteridae), with a CT scan survey of phylogenetically-relevant characters
Figure 1. – Mastiglanis durantoni, n. sp., holotype, MNHN 2015- 244, male, 63.7 mm SL, Tampok River, tributary to Maroni stream, French Guiana. Lateral view.
Figure 10 in Mastiglanis durantoni from French Guyana, a second species in the genus (Siluriformes: Heptapteridae), with a CT scan survey of phylogenetically-relevant characters
Figure 10. – Geographical distribution of Mastiglanis durantoni n. sp.
FIGURE 8 in A new species of Mastiglanis Bockmann 1994 (Siluriformes: Heptapteridae) from the Amazon River basin, Peru
FIGURE 8. Linear regression of the main morphological measures to differentiate Mastiglanis yaguas (white circle), and Mastiglanis asopos (black circle). Dashed lines represent the 95% confidence interval.
FIGURE 7 in A new species of Mastiglanis Bockmann 1994 (Siluriformes: Heptapteridae) from the Amazon River basin, Peru
FIGURE 7. Scatter plot of Principal Component Analysis (PCA) between component 2 and component 3, of Mastiglanis asopos (red), and Mastiglanis yaguas (blue).
FIGURE 6 in A new species of Mastiglanis Bockmann 1994 (Siluriformes: Heptapteridae) from the Amazon River basin, Peru
FIGURE 6. Boxplot showing meristic variation among Mastiglanis. (A) Total number of unbranched anal-fin rays. (B) Total number of branched anal-fin rays.
FIGURE 2 in A new species of Mastiglanis Bockmann 1994 (Siluriformes: Heptapteridae) from the Amazon River basin, Peru
FIGURE 2. Dorsal view of cranium of Mastiglanis yaguas, paratype, MUSM 61686, 42.7 mm SL. Abbreviations: af = anterior fontanel; ap = autopalatine; ep = epioccipital; ex = exoccipital; fr = frontal; le = lateral ethmoid; mx = maxilla; na = nasal; pf = posterior fontanel; pm = premaxilla; pt = pterotic; soc = supraoccipital; sp = sphenotic; tp4a = anterior branch of transverse process of vertebra 4; tp4b = posterior branch of transverse process of vertebra 4; tp5 = transverse process of vertebra 5. Arrow = symphysial region of premaxilla.
FIGURE 5 in A new species of Mastiglanis Bockmann 1994 (Siluriformes: Heptapteridae) from the Amazon River basin, Peru
FIGURE 5. Geographical distribution of Mastiglanis yaguas (red circle), M. asopos (white triangle), and M. durantoni (yellow square). Stars represent the type localities of each species. Each symbol may represent more than one specimen.
FIGURE 4 in A new species of Mastiglanis Bockmann 1994 (Siluriformes: Heptapteridae) from the Amazon River basin, Peru
FIGURE 4. Lateral view of caudal skeleton of Mastiglanis yaguas, paratype, MUSM 61686, 42.7 mm SL. Abbreviations: epu = epural; hu1 + hu2 = hypurals 1 and 2; hu3 + hu4 + hu5 = hypurals 3, 4, and 5; ph = parhypural; pu1 + u1 = preural centrum 1 and ural centrum 1; pu2 = preural centrum 2; ur = uroneural. Arrows: anterior processes.
FIGURE 1 in A new species of Mastiglanis Bockmann 1994 (Siluriformes: Heptapteridae) from the Amazon River basin, Peru
FIGURE 1. Mastiglanis yaguas, new species, MUSM 66612, holotype, 49.1 mm SL, (A) Lateral view of right side (image flipped), (B) Dorsal view, (C) Ventral view. Bar = 1 cm.
FIGURE 3 in A new species of Mastiglanis Bockmann 1994 (Siluriformes: Heptapteridae) from the Amazon River basin, Peru
FIGURE 3. Lateral view of suspensorium of Mastiglanis yaguas, paratype, MUSM 61686, 42.7 mm SL. Abbreviations: en = entopterygoid; hy = hyomandibula; io = interopercle; mt = metapterygoid; op = opercle; pop = preopercle; and qu = quadrate.
Figure 8 in Mastiglanis durantoni from French Guyana, a second species in the genus (Siluriformes: Heptapteridae), with a CT scan survey of phylogenetically-relevant characters
Figure 8. – CT scan image of skull and anterior portion of vertebral column and dorsal fin of Mastiglanis durantoni, MZUSP 118118, paratype. A: Dorsal view; B: Right lateral view; C: Ventral view. Anterior to top. A more detailed view of the Weberian complex is provided in Fig. 13. Abbreviations: af, anterior fontanel; bo, basioccipital; epi, epioccipital; ex, exoccipital; fr, frontal; le, lateral ethmoid; me, mesethmoid; np1-2, nuchal plates 1 and 2; ns, neural spine; orb, orbitosphenoid; pa, parasphenoid; par, parapophysis; pf, posterior fontanel; plr, pleurar rib; pro, prootic; pt, pterotic; ptr, pterosphenoid; pts, posttemporo-supracleithrum; sn, supraneural; soc, supraoccipital; socs, supraoccipital spine; sph, sphenotic; vc5-9, vertebral centra 5 to 9; vo, vomer; wc, Weberian complex.
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