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151 results for “Crenuchidae”
Fig. 4 in A new species of Characidium (Characiformes: Crenuchidae) from coastal basins in the Atlantic Rainforest of eastern Brazil, with phylogenetic and phylogeographic insights into the Characidium alipioi species group
Fig. 4. Fast flowing stream, type locality of Characidium cricarense, at Cachoeira do Inferno rapids in rio Cricaré, São Mateus, ES, Brazil. GPS coordinates: 18°42'24.5"S 40°16'7.2"W.
Fig. 3 in A new species of Characidium Reinhardt, 1867 (Characiformes: Crenuchidae) endemic to the Atlantic Forest in Paraná State, southern Brazil
Fig. 3. Caudal-fin bony elements in Characidium travassosi (a = MZUSP 88142, 45.0 mm SL; b = MZUSP 68142, 45.6 mm SL; c = MZUSP 85938, 29.8 mm SL), and Characidium fasciatum (d = MZUSP 85995, 27.9 mm SL). Scale bar equals 1 mm. Specimens illustrated in a, c and d were double stained for bone and cartilage; specimen b was only stained for bone. The epineurals and epipleurals were removed during dissection; numbering of hypurals does not necessarily imply homology. Abbreviations are as follows: EP, epurals; HPU, haemal spine of pleural centrum; NPU, neural spine of pleural centrum; HY, hypural; NA, neural arch; NU, neural spine of ural centrum; PH, parahypural; PL, pleurostyle; PU, pleural centrum; US, urostyle; CIHPU, inter-neural spine of cartilage of pleural centrum; CPHPU, post-neural spine cartilage of pleural centrum; COP, opisthural cartilage; CPEP, post-epural cartilage; CINPU, interneural spine cartilage of pleural centrum.
Fig. 2 in A new species of Characidium Reinhardt, 1867 (Characiformes: Crenuchidae) endemic to the Atlantic Forest in Paraná State, southern Brazil
Fig. 2. Geographic distribution of Characidium travassosi. White triangle = type locality; black triangles = additional localities.
Fig. 1 in A new species of Characidium Reinhardt, 1867 (Characiformes: Crenuchidae) endemic to the Atlantic Forest in Paraná State, southern Brazil
Fig. 1. Characidium travassosi, new species: (a) MZUSP 85940, 33.8 mm SL, holotype in lateral, dorsal and ventral views; stream tributary of rio Jordão, rio Iguaçu basin; (b) MZUSP 85938, 32.0 mm SL, and (c) MZUSP 85938, 32.9 mm SL, paratypes, rio Quadrado, rio Iguaçu basin; (d) MZUSP 68142, 56.3 mm SL, paratype, rio Taquari, tributary of rio Capivari, rio Ribeira de Iguape basin, (e) MZUSP 68144, 40.3 mm SL, paratype, rio Taquari tributary of rio Capivari, rio Ribeira de Iguape basin.
FIGURE 8 in Description of a new species of Characidium Reinhardt, 1867 (Characiformes: Crenuchidae) from the Chapada Diamantina, Bahia, and redescription of Characidium bimaculatum Fowler, 1941
FIGURE 8. Species of Characidium with a conspicuous peduncular botch, in addition to Characidium clistenesi and C. bimaculatum. (A) C. bahiense, MZUSP 120542, 23.7 mm SL; (B) C. laterale, MZUSP 19981, 25.1 mm SL; (C) C. nana, MZUSP 119140, 15.0 mm SL; (D) C. nana MZUSP 119140, 23.9 mm SL; (E) C. nupelia, MZUSP 87742 (paratype), 26.2 mm SL; and (F) C. xavante, MZUSP 95551, 21.8 mm SL.
FIGURE 5 in A new sexually dichromatic miniature Characidium (Characiformes: Crenuchidae) from the rio Guaporé, rio Madeira basin, Brazil, with remarkable morphological novelties to the genus
FIGURE 5 | Characidium fleurdelis, paratypes, INPA 59848, lateral view: A. Freshly preserved specimens, top male, 22.2 mm SL; bottom mature female with ovocytes seen by transparency on belly as a yellowish area, 24.1 mm SL; B. Live specimens, top male, 20.6 mm SL; bottom mature female, 24.0 mm SL. All from rio Guaporé sub basin, rio Madeira basin, Rondônia, Brazil.
FIGURE 4 in A new sexually dichromatic miniature Characidium (Characiformes: Crenuchidae) from the rio Guaporé, rio Madeira basin, Brazil, with remarkable morphological novelties to the genus
FIGURE 4 | Pseudotympanum of Characidium fleurdelis UFBA 9234, paratype, 20.6 mm SL, right side in lateral view. Overlying skin and adipose tissue removed. ls, lateralis superficialis; oi, obliquus inferioris; os, obliquus superioris. Asterisk indicates the rib of fifth vertebrae.
FIGURE 3 in A new sexually dichromatic miniature Characidium (Characiformes: Crenuchidae) from the rio Guaporé, rio Madeira basin, Brazil, with remarkable morphological novelties to the genus
FIGURE 3 | Osteological characteristics in cleared and stained specimens of Characidium fleurdelis, UFBA 9234, paratypes: A. Weberian apparatus and first ribs, black arrows indicate dorsal rounded processes on first ribs, female, 23.5 mm SL, dorsal view; B. Caudal-fin bony elements, black arrows indicate neural and haemal spines of the antepenultimate vertebra, posteriormost intermuscular bones removed, female, 23.5 mm SL, lateral view; C. Anal-fin radials and first haemal spines in male, 21.0 mm SL, asterisks indicate elongate and flattened haemal spines, black arrow indicates one radial with plate-like bony expansions, lateral view; D. Anal-fin radials and first haemal spines in female, asterisks indicate elongate haemal spines, black arrow indicates one radial without plate-like bony expansion, 23.5 mm SL, lateral view.
FIGURE 5 in A new species of Characidium (Characiformes: Crenuchidae) from the rio Doce basin, Brazil
FIGURE 5 | Map of the rio Doce basin, Brazil, showing the type locality (red star) and collection sites (yellow circles) of Characidium krenak from rio Piranga and rio Santo Antônio sub-basins; each symbol may represent more than one locality.
FIGURE 6 in A new species of Characidium (Characiformes: Crenuchidae) from the rio Doce basin, Brazil
FIGURE 6 | Sampling localities of Characidium krenak, Brazil, Minas Gerais State, rio Santo Antônio sub-basin, rio Doce basin: A. Unnamed stream tributary of the right bank of córrego Ponte Nova; B. Ribeirão das Pedras, a tributary of the right bank of rio do Peixe, near its confluence with Córrego Vermelho; C. Unnamed stream, before the meeting with córrego Ponte Nova; D. Córrego Escadinha, at right bank of ribeirão das Pedras, with deforested riparian vegetation for livestock activities; E. Córrego Vargem Grande, undergoing siltation process due to anthropogenic activities; F. Mining activities around the streams that flow into rio do Peixe, tributary of the rio Santo Antônio sub-basin, area of occurrence of C. krenak.
FIGURE 2 in A new species of Characidium (Characiformes: Crenuchidae) from the rio Doce basin, Brazil
FIGURE 2 | Ventral squamation of Characidium krenak (MZUSP 112265, 36.9 mm SL, paratype) showing the lack of scales on a region of the isthmus not extending posterior to the anterior margin of the cleithrum (naked portion restricted to area anterior to the dotted line).
FIGURE 4 in A new species of Characidium (Characiformes: Crenuchidae) from the rio Doce basin, Brazil
FIGURE 4 | Lateral views of uncatalogued aquarium specimens of Characidium krenak, showing the variable color patterns in life. A. Distinct black, rounded and vertically elongate blotches distributed along midlateral line of body. B. Inconspicuous blotches on midlateral line of body. All from Brazil, Minas Gerais State, Conceição do Mato Dentro, rio Santo Antônio sub-basin, rio Doce basin.
FIGURE 1 in A new species of Characidium (Characiformes: Crenuchidae) from the rio Doce basin, Brazil
FIGURE 1 | Characidium krenak: A. holotype, MZUSP 125896, 57.6 mm SL. B. paratype, MZUSP 112284, 47.3 mm SL. C. paratype, MCNIP 2025, 45.6 mm SL. D. paratype, MCNIP 3029, 41.4 mm SL. E. paratype, MCNIP 3029, 38.7 mm SL. F. paratype, MCNIP 2025, 37.4 mm SL. All from Brazil, Minas Gerais State, rio Doce basin, rio Piranga and rio Santo Antônio sub-basins.
FIGURE 6 in A new sexually dichromatic miniature Characidium (Characiformes: Crenuchidae) from the rio Guaporé, rio Madeira basin, Brazil, with remarkable morphological novelties to the genus
FIGURE 6 | A. Map with part of the rio Madeira basin, Brazil, showing the type locality (black star) of Characidium fleurdelis; symbol may represent more than one locality or lot. B. Sampling locality of Characidium fleurdelis, Rondônia, Corumbiara town, Vitória da União district, stream tributary of rio Oimerê, tributary of rio Corumbiara, rio Guaporé sub basin, rio Madeira basin.
FIGURE 5 in A new, narrowly distributed, and critically endangered species of Characidium (Characiformes: Crenuchidae) from the Distrito Federal, Central Brazil
FIGURE 5 | The proportion of body depth at dorsal-fin origin (% SL) versus the standard length (mm) in females (red triangles) and males (blue dots) in Characidium onca. Symbols indicating the mature females are highlighted in the dashed area.
FIGURE 1 in A new sexually dichromatic miniature Characidium (Characiformes: Crenuchidae) from the rio Guaporé, rio Madeira basin, Brazil, with remarkable morphological novelties to the genus
FIGURE 1 | Characidium fleurdelis: A. Holotype, MZUSP126956, female, 21.6 mm standard length, lateral view; B. Paratype, UFBA 9234, female, 22.9 mm SL, lateral, dorsal and ventral views; C. Paratype, UFBA 9234, female, 23.8 mm SL, lateral view; D. Paratype, UFBA 9234, male, 20.6 mm SL, lateral view; E. Paratype, UFBA 9233, juvenile, 17.4 mm SL, lateral view. All from rio Guaporé sub basin, rio Madeira basin, Rondônia, Brazil.
FIGURE 6 in A new, narrowly distributed, and critically endangered species of Characidium (Characiformes: Crenuchidae) from the Distrito Federal, Central Brazil
FIGURE 6 | Maps of the tributaries of rio Paranaíba in Goiás State, Brazil in general view (left), with the rio São Bartolomeu basin detailed in the Distrito Federal (right). The type locality of Characidium onca is indicated by a star in the córrego Taquara. Abbreviations: BA, Bahia; DF, Distrito Federal; GO, Goiás; MG, Minas Gerais; MS, Mato Grosso do Sul; MT, Mato Grosso; and TO, Tocantins.
FIGURE 4 in A new, narrowly distributed, and critically endangered species of Characidium (Characiformes: Crenuchidae) from the Distrito Federal, Central Brazil
FIGURE 4 | Pseudotympanum in Characidium onca (MZUSP 125801, paratype). Abbreviations: 5th pl, pleural rib of fifth vertebra; a, anterior window of pseudotympanum; lln, lateral line nerve; ls, lateralis superficialis; oi, obliquus inferioris; os, obliquus superioris; p, posterior window of pseudotympanum. Scale bar = 1 mm.
FIGURE 7 in A new, narrowly distributed, and critically endangered species of Characidium (Characiformes: Crenuchidae) from the Distrito Federal, Central Brazil
FIGURE 7 | Satellite images of the Area de Preservação Ambiental das Bacias do Gama e Cabeça de Veado (highlighted in red), showing the land use and cover changes along the past 34 years, and predicted: in A. year of 1986, with urban areas concentrated north of the FAL–UNB, RECOR and EEJBB; B. year of 1996, illustrating the beginning of expansion of urban and rural areas just east of the FAL–UNB, RECOR and EEJBB; C. year of 2006, after the construction of the Juscelino Kubitschek bridge in 2002, illustrating a rapid expansion of urban areas in the eastern area; and D., predicted situation according to the Distrito Federal Territorial Planning Master Plan (2009, 2019). Green polygons indicate protected areas; yellow, urban areas; blue, rural areas; black, public land; and, red arrow, the Juscelino Kubitschek bridge. Abbreviations: FAL–UNB, Estação Experimental Fazenda Águas Limpas of the University of Brasília; RECOR, Reserva Ecológica do Instituo Brasileiro de Geografia e Estatística; and EEJBB, Estação Ecológica do Jardim Botânico de Brasília. Source of maps: Google Earth.
FIGURE 1 in A new, narrowly distributed, and critically endangered species of Characidium (Characiformes: Crenuchidae) from the Distrito Federal, Central Brazil
FIGURE 1 | Characidium onca, holotype, MZUSP 125807, 40.1 mm SL, male. A. Specimen in lateral view soon after collection; B–D. Preserved specimen in lateral dorsal, ventral views.
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