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901 results for “Amazon Basin”
FIGURE 3 in Melanosternarchus amaru, a new genus and species of electric ghost knifefish (Gymnotiformes: Apteronotidae) from the Amazon Basin
FIGURE 3. Detail of the head of living Melanosternarchus amaru, ANSP 200459 (A) and cephalic lateral line bones of Melanosternarchus amaru, LSUMZ 20734, 237 mm TL (B). Abbreviations: ant, antorbital; io, infraorbital; na, nasal; otc, otic canal; mco, mandibular canal ossicles; pa, parietal canal; prc, preopercular canal; soc, supraorbital canal; stc, supratemporal canal.
FIGURE 4 in Melanosternarchus amaru, a new genus and species of electric ghost knifefish (Gymnotiformes: Apteronotidae) from the Amazon Basin
FIGURE 4. CT scan of Melanosternarchus amaru, FMNH 128388, 210 mm TL in dorsal (A), ventral (B), and lateral (C) views.
FIGURE 2. Hypopygus varii, MNRJ 46752 in A new species of Hypopygus Hoedeman (Gymnotiformes: Rhamphichthyidae) from the rio Trombetas system, Amazon basin, Brazil
FIGURE 2. Hypopygus varii, MNRJ 46752, holotype, 89.0 mm LEA. Head and anteriomost portion of body. Scale bar: 10 mm. Arrow indicates anus position.
FIGURE 4 in A new species of Hypopygus Hoedeman (Gymnotiformes: Rhamphichthyidae) from the rio Trombetas system, Amazon basin, Brazil
FIGURE 4. Strict consensus tree of four fundamental most parsimonious cladograms (length 55, CI = 0.89, RI = 0.92) showing phylogenetic relationships between Hypopygus species. See text for details and discussion.
FIGURE 3 in A new species of Hypopygus Hoedeman (Gymnotiformes: Rhamphichthyidae) from the rio Trombetas system, Amazon basin, Brazil
FIGURE 3. Map of northern South America showing approximate type-localities of Hypopygus species. Square: Hypopygus varii; circles: 1 = H. benoneae; 2 = H. cryptogenes; 3 = H. hoedemani; 4 = H. isbruckeri; 5 = H. lepturus; 6 = H. minissimus; 7 = H. neblinae; 8 = H. nijsseni; 9 = H. ortegai.
FIGURE 1. Hypopygus varii, MNRJ 46752 in A new species of Hypopygus Hoedeman (Gymnotiformes: Rhamphichthyidae) from the rio Trombetas system, Amazon basin, Brazil
FIGURE 1. Hypopygus varii, MNRJ 46752, holotype, 89.0 mm LEA, Brazil, Pará, Oriximiná, igarapé Saracá. (a) Left lateral view of body; (b) dorsal view of same specimen, head to left. Scale bar: 10 mm.
FIGURES 1–5. 1 in New species and distribution notes of Cerambycidae (Coleoptera) for the state of Acre and the Amazon basin, Brazil
FIGURES 1–5. 1, Unachlorus rafaeli sp. nov.; 2, Unachlorus viridis Martins & Galileo, 2008; 3, Stizocera nigroapicalis Fuchs, 1961; 4, Delemodacrys mourei Martins & Napp, 1979; 5, Tropidozineus impensus Monné & Martins, 1976.
FIGURES 6–11. 6 in New species and distribution notes of Cerambycidae (Coleoptera) for the state of Acre and the Amazon basin, Brazil
FIGURES 6–11. 6, Necalphus decoratus (Monné & Magno, 1992); 7, Oreodera fluctuosa Bates, 1861; 8, Penaherreraus guianensis (Tavakilian & Peñaherrera-Leiva, 2003); 9, Acreana cuprea Lane, 1973; Colobothea passerina Erichson, 1849; 11, Esthlogena (Esthlogena) albolineata (Breuning, 1940).
FIGURE 5 in Parotocinclus yaka, a new species of armored catfish (Loricariidae: Hypoptopomatinae), from the Amazon basin in Brazil
FIGURE 5. Drainage map of the upper Amazon basin showing the localities of Parotocinclus yaka. Red dot symbol is typelocality and may represent more than one lot or locality.
FIGURE 4. Parotocinclus yaka, MZUSP 85786 in Parotocinclus yaka, a new species of armored catfish (Loricariidae: Hypoptopomatinae), from the Amazon basin in Brazil
FIGURE 4. Parotocinclus yaka, MZUSP 85786, dorsal-fin spinelet, dorsal view, anterior towards top. Scale bar = 500 µ.
FIGURE 3 in Parotocinclus yaka, a new species of armored catfish (Loricariidae: Hypoptopomatinae), from the Amazon basin in Brazil
FIGURE 3. Color pattern of Parotocinclus showing markings of dorsum of head. A. Parotocinclus longirostris, MZUSP 85768; B. Parotocinclus polyochrus AMNH 74482, holotype); C. P. variola, MCP 48244; and D. P. yaka, MZUSP 81408. Scale bar = 5 mm.
FIGURE 1 in Parotocinclus yaka, a new species of armored catfish (Loricariidae: Hypoptopomatinae), from the Amazon basin in Brazil
FIGURE 1. Holotype of Parotocinclus yaka, female, 30.1 mm SL, MZUSP 123655. Brazil, Amazonas, Rio Tiquié basin, Igarapé Açaí near São Pedro Village.
FIGURE 6 in A new species of Bryconops Kner (Characiformes: Iguanodectidae) from the Rio Maicuru, lower Amazon basin, Brazil
FIGURE 6. Bryconops piracolina, UFRO-ICT 22726, a) 70 mm SL; b) 58.4 mm SL, Brazil, Rondônia, Vilhena, Igarapé Piracolina.
FIGURE 5 in A new species of Bryconops Kner (Characiformes: Iguanodectidae) from the Rio Maicuru, lower Amazon basin, Brazil
FIGURE 5. Type locality of Bryconops chernoffi, Brazil, Pará, Monte Alegre, Rio Ipixuna (a) above, and (b,c) below a great waterfall. Specimens were collected above the waterfall.
FIGURE 2 in A new species of Bryconops Kner (Characiformes: Iguanodectidae) from the Rio Maicuru, lower Amazon basin, Brazil
FIGURE 2. Bryconops chernoffi, UFOPA-I 656, paratype, 49.5 mm SL (c&s). Left side of the premaxillary, maxillary, and dentary. Lateral view. Scale bar = 1 mm
FIGURE 1 in A new species of Bryconops Kner (Characiformes: Iguanodectidae) from the Rio Maicuru, lower Amazon basin, Brazil
FIGURE 1. Bryconops chernoffi: a) ZUEC 14796, holotype, 59.6 mm SL, b) INPA 56753, paratype, 55.2 mm SL, and c) UFOPA-I 656, paratype, 45.9 mm SL. Brazil, Pará, Monte Alegre, rio Ipixuna, tributary of rio Maicuru.
FIGURE 4 in A new species of Hisonotus (Siluriformes: Loricariidae) from Aripuanã river, Amazon basin, Brazil
FIGURE 4. Map showing the type locality (star) of H. jumaorum at rio Juma, tributary of rio Aripuanã, rio Madeira basin (7°12'43.7"S 59°55'19.6"W).
FIGURE 2 in A new species of Hisonotus (Siluriformes: Loricariidae) from Aripuanã river, Amazon basin, Brazil
FIGURE 2. Comparison of Hisonotus tooth color pattern. a) Hisonotus jumaorum sp. n., holotype, MZUSP 96785, 26.2 mm SL and b) H. chromodontus, NUP 10924, 29.7 mm SL, showing the reddish-tipped teeth; c) H. acuen, MZUSP 115350, 25.9 mm SL and d) H. vespuccii, LBP 19491, 38.0 mm SL, showing the yellow-tipped teeth.
FIGURE 3 in A new species of Hisonotus (Siluriformes: Loricariidae) from Aripuanã river, Amazon basin, Brazil
FIGURE 3. Caudal-fin coloration pattern of a) Hisonotus jumaorum sp. n., holotype, MZUSP 96785, 26.2 mm SL; b) H. chromodontus, LBP7964, 27.6 mm SL; c) H. acuen, LBP 16279, 26.1 mm SL; and d) H. vespuccii, LBP 19491, 26.2 mm.
FIGURE 1. Hisonotus jumaorum, MZUSP 123835, 26.2 in A new species of Hisonotus (Siluriformes: Loricariidae) from Aripuanã river, Amazon basin, Brazil
FIGURE 1. Hisonotus jumaorum, MZUSP 123835, 26.2 mm SL, holotype, Brazil, Amazonas state, municipality of Apuí, rio Juma, tributary of rio Aripuanã, rio Madeira basin. Dorsal, lateral and ventral views.
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.