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152 results for “Trichomycterus”
Figure 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
Figure 2 Phylogenetic positioning of Cambeva among the Trichomycteridae, inferred by Maximum Likehood from the analysis of molecular data, total of 4380 bp comprising segments of nuclear genes for GLYT, MYH6, RAG2 and SH3PX3 and the mitochondrial genes COI and CYTB. Numbers on each node are bootstrap percentages of the Maximum Likelihood analysis; asterisks indicate maximum support value and hyphen values under 50.
Figure 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
Figure 1 Phylogenetic positioning of Cambeva among the Trichomycteridae, inferred by Bayesian Inference from the analysis of molecular data, total of 4380 bp comprising segments of nuclear genes for GLYT, MYH6, RAG2 and SH3PX3 and the mitochondrial genes COI and CYTB. Numbers on each node represent posterior probabilities.
Figure 6 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 6 Rio da Bomba at the type locality of Trichomycterus diamantinensis sp. nov.
FIGURE 2 in Intrapopulational variation in color pattern of Trichomycterus davisi (Haseman, 1911) (Siluriformes: Trichomycteridae) corroborated by morphometrics and molecular analysis
FIGURE 2. Schematic drawing of Trichomycterus and morphometric measurements: 1) standard length, 2) pre-anal length, 3) pre-pelVic length, 4) pelVic-anal length, 5) caudal peduncle length, 6) Pectoral girdle width, 7) pectoral fin length, 8) pelVic fin length, 9) anal fin length, 10) rictal barbel length, 11) maxillary barbel length, 12) nasal barbel length, 13) snout length, 14) eye diameter, 15) interorbital distance, 16) head width, 17) head length, 18) predorsal length, 19) body length, 20) dorsal fin length, 21) body depth, 22) dorsal-fin base length, 23) anal-fin base length, 24) caudal peduncle depth, 25) mouth width.
FIGURE 2 in New species of Trichomycterus (Siluriformes: Trichomycteridae) from the High Andean Plateau of Argentina
FIGURE 2. Left lateral view of caudal peduncle in: A. Trichomycterus varii, new species, FACEN 0105, 52.9 mm SL, the caudal peduncle expanded in the area of the procurrent caudal-fin rays; B. T. roigi, FACEN 0108, 53.5 mm SL, the caudal peduncle not expanded in the area of the procurrent caudal-fin rays. Photographs by L. Fernández.
FIGURE 1 in New species of Trichomycterus (Siluriformes: Trichomycteridae) from the High Andean Plateau of Argentina
FIGURE 1. Trichomycterus varii, new species, holotype, FACEN 0105, 52.9 mm SL, left lateral, dorsal, and ventral views; Argentina, Provincia de Jujuy, Departamento Santa Catalina, Río Cieneguillas. Photograph by L. Fernández.
FIGURE 6 in The type specimens of Trichomycterus alternatus (Eigenmann, 1917) and Trichomycterus zonatus (Eigenmann, 1918), with elements for future revisionary work (Teleostei: Siluriformes: Trichomycteridae)
FIGURE 6. Trichomycterus zonatus, heads in dorsal views. A—holotype, FMNH58573, 52.3 mm SL, Água Quente; B and C, paratypes, FMNH 58574, 42.8–46.9 mm SL, same locality as holotype; D—paratype, FMNH 58572, 50.7 mm SL, Cubatão, 7 miles west of Santos, São Paulo, Brazil.
FIGURE 3 in The type specimens of Trichomycterus alternatus (Eigenmann, 1917) and Trichomycterus zonatus (Eigenmann, 1918), with elements for future revisionary work (Teleostei: Siluriformes: Trichomycteridae)
FIGURE 3. Trichomycterus alternatus, heads in dorsal views showing variation in cephalic latero-sensory pores and other morphological and coloration features in the head region in part of the type series. A–J, paratypes, FMNH 58083, 42.5–57.1 mm SL, Brazil, Minas Gerais: Rio Doce municipality; K—holotype, FMNH 58082, 65.6 mm SL, same locality as paratypes.
FIGURE 4 in The type specimens of Trichomycterus alternatus (Eigenmann, 1917) and Trichomycterus zonatus (Eigenmann, 1918), with elements for future revisionary work (Teleostei: Siluriformes: Trichomycteridae)
FIGURE 4. Stereo triplet radiographs of Trichomycterus alternatus, holotype, FMNH 58082. 3D effects: A+B, dorsal view; B+C, ventral view. See text (Material and Methods) for further explanation.
FIGURE 8. Cephalic latero-sensory canal pores. A in The type specimens of Trichomycterus alternatus (Eigenmann, 1917) and Trichomycterus zonatus (Eigenmann, 1918), with elements for future revisionary work (Teleostei: Siluriformes: Trichomycteridae)
FIGURE 8. Cephalic latero-sensory canal pores. A—Trichomycterus alternatus (holotype FMNH 58082; this specimen has abnormal supranumerary pores near pore s6; see Description). B—Trichomycteus zonatus (holotype FMNH 58573). Abbreviations: i1, infraorbital sensory pore 1; i3, infraorbital sensory pore 3; i10–11, infraorbital sensory pore 10 and 11; ll1–2, lateral line sensory pore 1 (supracleithral sensory branch) and 2; po1–2, postotic sensory pore 1 and 2; s1, supraorbital sensory pore 1; s3, supraorbital sensory pore 3; s6, supraorbital sensory pore 6 (epiphyseal branch).
FIGURE 2 in The type specimens of Trichomycterus alternatus (Eigenmann, 1917) and Trichomycterus zonatus (Eigenmann, 1918), with elements for future revisionary work (Teleostei: Siluriformes: Trichomycteridae)
FIGURE 2. Trichomycterus alternatus, lateral views showing coloration variation in part of the type series. A—J, paratypes, FMNH 58083, 42.5–57.1 mm SL, Brazil, Minas Gerais: Rio Doce municipality; K— holotype FMNH 58082, 65.6 mm SL, same locality as paratypes.
Figure 3 in Repeated colonization of caves leads to phenotypic convergence in catfishes (Siluriformes: Trichomycterus) at a small geographical scale
Figure 3. Relationships among catfish in Trichomycterus and other genera reveal repeated colonization of caves and phenotypic convergence in the karst region of Santander, Colombia. The Bayesian gene tree on the left is an overview of phylogeny based on sequences of the COI gene (outgroups not shown). Colours at the tips indicate whether specimens were collected in the western slope of the Eastern Andes of Santander, whether they were found in cave habitats, and whether they lacked eyes or body pigmentation (i.e. troglomorphism). Strongly supported nodes (posterior probability ≥ 0.95, maximum likelihood bootstrap ≥ 70%) relevant to the phylogenetic position of specimens from Santander are indicated with circles; numbered nodes are mentioned in the text and panels on the right. Node 1 defines a clade formed
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