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152 results for “Trichomycterus”
FIGURE 7 in The type specimens of Trichomycterus alternatus (Eigenmann, 1917) and Trichomycterus zonatus (Eigenmann, 1918), with elements for future revisionary work (Teleostei: Siluriformes: Trichomycteridae)
FIGURE 7. Stereo triplet of Trichomycterus zonatus holotype FMNH58573. 3D effects: A+B, dorsal view; B+C, ventral view. See text (Material and Methods) for further explanation.
Figure 2 in Repeated colonization of caves leads to phenotypic convergence in catfishes (Siluriformes: Trichomycterus) at a small geographical scale
Figure 2. Morphological variability of some species of Trichomycterus included in this study. Lateral and dorsal view of the same individual from cave localities (designated with letter C) and surface streams (designated with letter S). Sc = Coca, Guadalupe; Su = Uchuval, Zapatoca; Cb = El Berraco, Guadalupe; Cv = La Vaca, Curití; Cg = Ojo de Agua, Guapotá; Cal = La Alsacia, Zapatoca. Bar indicates 1 cm.
Figure 1 in Repeated colonization of caves leads to phenotypic convergence in catfishes (Siluriformes: Trichomycterus) at a small geographical scale
Figure 1. Type localities of cave species of Trichomycterus in the Neotropical region (top left), a photograph showing an example of habitats occupied by fishes in this system (Las Sardinas Cave, the type locality of T. rosablanca; photo by Felipe Villegas) and map of the Department of Santander showing the collection sites of specimens of Trichomycterus analysd in this study (bottom). Triangles correspond to caves, circles to surface streams. Orange triangles correspond to cave localities where fishes show reduced eyes and coloration, and blue triangles to caves where fishes have regular eyes and coloration. Cave localities are designated with letter C and surface streams with the letter S. The type localities of cave species T. rosablanca (Cs) and T. sandovali (Cal) are indicated with asterisks. Photograph (El Peñón, Santander) by Felipe Villegas-Instituto Humboldt.
FIGURE 10 in A new species of cave catfish from Brazil, Trichomycterus rubbioli sp. n., from Serra do Ramalho karstic area, São Francisco River basin, Bahia State (Silurifomes: Trichomycteridae)
FIGURE 10. Caudal skeleton of Trichomycterus rubbioli, (MZUSP 110979), 64.1 mm SL, paratype. Left lateral view. Abbreviations: ahs2, anterior hemal spine of preural centrum 2; hy3, hypural 3; hy4+5, complex plate formed by coossification of hypurals 4 and 5; ns1–2, neural spines of preural centrum 1 and 2; pc1+u1, complex centrum composed of preural centrum 1 and ural centrum 1; pc2, preural centrum 2; ph+hy1+hy2, complex plate formed by co-ossification of parhypual, hypurals 1 and 2; phs2, posterior hemal spine of preural centrum 2; un, uroneural. Scale bar = 2 mm.
FIGURE 8 in A new species of cave catfish from Brazil, Trichomycterus rubbioli sp. n., from Serra do Ramalho karstic area, São Francisco River basin, Bahia State (Silurifomes: Trichomycteridae)
FIGURE 8. Left pectoral girdle of Trichomycterus rubbioli, (MZUSP 110980), 32.9 mm SL, paratype. Ventral view. Abbreviations: ap, anterior process; cl, cleithrum; fr, fin rays; pr1–3, proximal radials 1 to 3; sc, scapulocoracoid. Scale bar = 2 mm.
FIGURE 9 in A new species of cave catfish from Brazil, Trichomycterus rubbioli sp. n., from Serra do Ramalho karstic area, São Francisco River basin, Bahia State (Silurifomes: Trichomycteridae)
FIGURE 9. Pelvic girdle skeleton of Trichomycterus rubbioli, (MZUSP 110980), 32.9 mm SL, paratype. Ventral view. Abbreviations: fr, fin rays; ip, internal anterior process; ep, external anterior process; mp, medial process; ps, pelvic splint. Scale bar = 2 mm.
FIGURE 7 in A new species of cave catfish from Brazil, Trichomycterus rubbioli sp. n., from Serra do Ramalho karstic area, São Francisco River basin, Bahia State (Silurifomes: Trichomycteridae)
FIGURE 7. Branchial skeleton of Trichomycterus rubbioli, (MZUSP 110980), 32.9 mm SL, paratype. Dorsal view. Abbreviations: bb2–4, basibranchials 2 to 4; cb1–5, ceratobranchials 1 to 5; eb1–5, epibranchials 1 to 5; hb1–3, hypobranchials 1 to 3; pb3–4, pharyngobranchial 3 and 4; tp, tooth plate. Scale bar = 2 mm.
FIGURE 6 in A new species of cave catfish from Brazil, Trichomycterus rubbioli sp. n., from Serra do Ramalho karstic area, São Francisco River basin, Bahia State (Silurifomes: Trichomycteridae)
FIGURE 6. Left hyoid arch of Trichomycterus rubbioli, (MZUSP 110980), 32.9 mm SL, paratype. Ventral view. Abbreviations: ac, anterior ceratohyal; br, branchiostegal rays; pc, posterior ceratohyal; ur, urohyal; vh, ventral hypohyal. Scale bar = 2 mm.
FIGURE 5 in A new species of cave catfish from Brazil, Trichomycterus rubbioli sp. n., from Serra do Ramalho karstic area, São Francisco River basin, Bahia State (Silurifomes: Trichomycteridae)
FIGURE 5. Left suspensorium and opercular series of Trichomycterus rubbioli, (MZUSP 110980), 32.9 mm SL, paratype. Lateral view. Abbreviations: hm, hyomandibular; io, interopercle; mp, metapterygoid; op, opercle; po, preopercle; qu, quadrate. Scale bar = 2 mm.
FIGURE 3 in A new species of cave catfish from Brazil, Trichomycterus rubbioli sp. n., from Serra do Ramalho karstic area, São Francisco River basin, Bahia State (Silurifomes: Trichomycteridae)
FIGURE 3. Trichomycterus rubbioli, holotype, (MZUSP 110977), 60.3 mm SL, 13.4 mm HL. Brazil, Bahia State, Serra do Ramalho karstic area, Middle São Francisco river basin, Carinhanha County, Lapa dos Peixes cave. Dorsal close-up view of the head.
FIGURE 4 in A new species of cave catfish from Brazil, Trichomycterus rubbioli sp. n., from Serra do Ramalho karstic area, São Francisco River basin, Bahia State (Silurifomes: Trichomycteridae)
FIGURE 4. Neurocranium of Trichomycterus rubbioli, (MZUSP 110980), 32.9 mm SL, paratype. Dorsal view. Abbreviations: acf, anterior cranial fontanel; ap, autopalatine; ao, antorbital; cl, cleithrum; eb, epiphyseal bar; eo, epioccipital; fr, frontal; i10+i11, infraorbital sensory branches 10 and 11; ip, infraorbital process; le, lateral ethmoid; me, mesethmoid; mx, maxilla; oc, parieto-supraoccipital; p1-2, postotic sensory branches 1 and 2; pcf, posterior cranial fontanel; pm, pre-maxilla; psc, posttemporo-supracleithrum; pt, pterotic; s3, supraorbital sensory branch 3; s6, supraorbital sensory branch 6; so, sesamoidsupraorbital; sp, sphenotic-prootic-pterosphenoid complex bone; wc, weberian complex and capsule. Scale bar = 2 mm.
FIGURE 2 in A new species of cave catfish from Brazil, Trichomycterus rubbioli sp. n., from Serra do Ramalho karstic area, São Francisco River basin, Bahia State (Silurifomes: Trichomycteridae)
FIGURE 2. Trichomycterus rubbioli, holotype (MZUSP 110977), 60.3 mm SL. Brazil, Bahia State, Serra do Ramalho karstic area, Middle São Francisco river basin, Carinhanha County, Lapa dos Peixes cave. Dorsal view (above) and left lateral view (below).
FIGURE 1 in A new species of cave catfish from Brazil, Trichomycterus rubbioli sp. n., from Serra do Ramalho karstic area, São Francisco River basin, Bahia State (Silurifomes: Trichomycteridae)
FIGURE 1. Map of southwestern Bahia state showing the localities where the collection was made (small numbered dots), main counties (large dots), rivers (continuous lines) and the limits of the Serra do Ramalho karst area (traced line). 1, Lapa dos Peixes cave; 2, Gruna da Água Clara cave. Photograph shows the details of Trichomycterus rubbioli habitat in Lapa dos Peixes cave.
Supplementary material 3 from: Katz AM, Barbosa MA, de Oliveira Mattos JL, da Costa WJE (2018) Multigene analysis of the catfish genus Trichomycterus and description of a new South American trichomycterine genus (Siluriformes, Trichomycteridae). Zoosystematics and Evolution 94(2): 557-566. https://doi.org/10.3897/zse.94.29872
Genetics data : Explanation note: Best-fit evolutionary models found for each mitochondrial gene and for each codon position of nuclear genes.
Supplementary material 2 from: Katz AM, Barbosa MA, de Oliveira Mattos JL, da Costa WJE (2018) Multigene analysis of the catfish genus Trichomycterus and description of a new South American trichomycterine genus (Siluriformes, Trichomycteridae). Zoosystematics and Evolution 94(2): 557-566. https://doi.org/10.3897/zse.94.29872
Occurences and morphological data : Explanation note: List of material examined for the analysis of morphological characters.
Supplementary material 1 from: Katz AM, Barbosa MA, de Oliveira Mattos JL, da Costa WJE (2018) Multigene analysis of the catfish genus Trichomycterus and description of a new South American trichomycterine genus (Siluriformes, Trichomycteridae). Zoosystematics and Evolution 94(2): 557-566. https://doi.org/10.3897/zse.94.29872
GenBank accession codes : Explanation note: Terminal taxa for molecular phylogeny and respective GenBank accession numbers.
FIGURE 4 in Trichomycterus santanderensis: A new species of troglomorphic catfish (Siluriformes, Trichomycteridae) from Colombia
FIGURE 4. Inside Cave El Puente.
FIGURE 3 in Trichomycterus santanderensis: A new species of troglomorphic catfish (Siluriformes, Trichomycteridae) from Colombia
FIGURE 3. Trichomycterus santanderensis, holotype, CAC-CDMB 035; dorsal view of head.
Figure 5 from: Costa WJEM, Feltrin CRM, Mattos JLO, Katz AM (2024) Relationships and description of a new catfish species from Chapada Diamantina, the northernmost record of Trichomycterus s.s. (Siluriformes, Trichomycteridae). Zoosystematics and Evolution 100(1): 223-231. https://doi.org/10.3897/zse.100.115564
Figure 5 Map of geographical distribution of: 1.Trichomycterus diamantinensis sp. nov. and 2.T. tete.
Figure 4 from: Costa WJEM, Feltrin CRM, Mattos JLO, Katz AM (2024) Relationships and description of a new catfish species from Chapada Diamantina, the northernmost record of Trichomycterus s.s. (Siluriformes, Trichomycteridae). Zoosystematics and Evolution 100(1): 223-231. https://doi.org/10.3897/zse.100.115564
Figure 4 Osteological structures of A–C.Trichomycterus diamantinensis sp. nov.; D–F.T. tete. A, D. Mesethmoidal region and adjacent structures, left and middle portions, dorsal view; B, E. Left jaw suspensorium and opercular series, lateral view; C, F. Parurohyal, ventral view. Larger stippling represents cartilaginous areas.
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