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Fig. 2 in Gill dimensions in near-term embryos of Amazonian freshwater stingrays (Elasmobranchii: Potamotrygonidae) and their relationship to the lifestyle and habitat of neonatal pups
Fig. 2. Total superficial gill area of the anterior and posterior hemibranchs of the gill arches in different potamotrygonid embryos: (A) Potamotrygon orbignyi; (B) Potamotrygon sp.; (C) Potamotrygon motoro (from Negro River); (D) Potamotrygon motoro (from Solimões River); (E) Plesiotrygon iwamae; (F) Paratrygon aiereba.
Fig. 1 in Gill dimensions in near-term embryos of Amazonian freshwater stingrays (Elasmobranchii: Potamotrygonidae) and their relationship to the lifestyle and habitat of neonatal pups
Fig. 1. The potamotrygonid embryos: (A) Potamotrygon orbignyi; (B) cururu ray Potamotrygon sp.; (C) Potamotrygon motoro (from Negro River); (D) Potamotrygon motoro (from Solimões River); (E) Plesiotrygon iwamae; (F) Paratrygon aiereba. Scale bars= 1 cm.
Figure 4. A cove with shallow water near Ponte Porton with 14 in Populations of Microcondylaea bonellii (Férussac 1827), Unionidae - an european freshwater mussel at rapid decline - and Unio mancus in Istria, Croatia
Figure 4. A cove with shallow water near Ponte Porton with 14 individuals of Microcondylaea bonellii (26.9.2009).
Figure 3 in Populations of Microcondylaea bonellii (Férussac 1827), Unionidae - an european freshwater mussel at rapid decline - and Unio mancus in Istria, Croatia
Figure 3. Numbers of shells of Unio mancus (blue) and Microcondylaea bonelli at the different sites (red).
Fig. 2 and 3 in Populations of Microcondylaea bonellii (Férussac 1827), Unionidae - an european freshwater mussel at rapid decline - and Unio mancus in Istria, Croatia
Fig. 2 and 3 give the results of my surveys in river Mirna in 2009 to 2016. In the upper part of the river from the city of Buzet to the confluence with Butoniga the artificially straightened riverbed is dominated by coarse gravel and shows ± rapid current. Although Microcondylaea was recorded from this part of the river near Istarske Teplice (Fischer 1999) no shells or living specimens were found actually. Populations of Unio mancus were mainly found in tributaries like Bračana and drenches, less frequently in the riverbed of upper Mirna. Between 2009 and 2016 the Mirna-riverbed was reconstructed in several places, eroded banks with coves and fine sand substrate were replaced by blocks of stone and the riverbed straightened again. Thus many suitable habitats and eventually existing mussels-populations were destroyed, so much the worse as heavy machines were driving in the riverbed over many weeks for the construction works and mobilized the substrate, which led to high accumulations of fine sediment in the lower part of the river, especially in parts with low current and coves which were inhabited by Microcondylaea.
Figure 1 in Populations of Microcondylaea bonellii (Férussac 1827), Unionidae - an european freshwater mussel at rapid decline - and Unio mancus in Istria, Croatia
Figure 1. Map of known living populations of Microcondylaea bonelli in Slovenia (grey) and Italy (yellow) from http://art17.eionet.europa.eu/article17/reports2012/species/summary/. Populations in Croatia (red) added by the author.
Figure 10 in A taxonomic revision of fossil freshwater pearl mussels (Bivalvia: Unionoida: Margaritiferidae) from Pliocene and Pleistocene deposits of Southeastern Europe
Figure 10. Fossil-calibrated multi-locus ultrametric chronogram of the Margaritiferidae (after Lopes-Lima et al. (2018) with our additions). Bars indicate 95% confidence intervals of the estimated divergence times between lineages (Ma). Black numbers near nodes are mean ages (Ma). Stratigraphic chart according to the International Commission on Stratigraphy, 2015. Fossil species under discussion are in red. We illustrated a putative phylogenetic placement of fossil species, i.e. Pseudunio flabellatus (Goldfuss, 1837) comb. rev. as a stem lineage (MRCA of P. auricularius - P. homsensis clade) and P. flabellatiformis (Grigorowitch-Beresowski, 1915) comb. rev. as an extinct lineage (red branch with X-shaped terminal mark indicating an extinction event in the Late Pleistocene) related to P. auricularius and P. homsensis.
Figure 8 in A taxonomic revision of fossil freshwater pearl mussels (Bivalvia: Unionoida: Margaritiferidae) from Pliocene and Pleistocene deposits of Southeastern Europe
Figure 8. Teeth morphology of recent and fossil Pseudunio taxa: A) P. auricularius from the Indre River near Huismes commune, Loire Basin, France (SMF, voucher no. 307623); B) P. homsensis from the Nahr al-Kabir al-Janoubi River near Harida, Syria (SMF, voucher no. 83160); C) P. flabellatiformis comb. rev. from the Sucleia outcrop, paleoDniester River valley, Middle Pleistocene, Moldova (RMBH, voucher no. Sc1). Scale bars = 10 mm. Photos: Artem A. Lyubas and Ilya V. Vikhrev.
Figure 7 in A taxonomic revision of fossil freshwater pearl mussels (Bivalvia: Unionoida: Margaritiferidae) from Pliocene and Pleistocene deposits of Southeastern Europe
Figure 7. Shells of the recent Pseudunio homsensis (Lea, 1865): A) Orontes River near Homs, Syria (SMF, voucher no. 4450); B) Orontes River near Homs, Syria (SMF, voucher no. 345464); C) Orontes River near Homs, Syria (SMF, voucher no. 15263); D) Nahr al-Kabir al-Janoubi River near Harida, Syria (SMF, voucher no. 83160) E) Nahr al-Kabir al-Janoubi River near Tell Kalat, Syria (SMF, voucher no. 5156); F) Orontes River near Homs, Syria (SMF, voucher no. 4548). Scale bar = 20 mm. Photos: Ilya V. Vikhrev.
Figure 3 in Photographic evidence of freshwater whipray Urogymnus dalyensis (Myliobatiformes: Dasyatidae) in Indonesian waters
Figure 3. Map showing location of Urogymnus dalyensis (yellow circle) in Lampu Satu beach, Merauke district, Papua province, Indonesia.
Figure 1 in Photographic evidence of freshwater whipray Urogymnus dalyensis (Myliobatiformes: Dasyatidae) in Indonesian waters
Figure 1. The specimen of Urogymnus dalyensis caught on 24 December 2017 at Lampu Satu beach, Merauke district, Papua province, Indonesia (Photo: Lham Jr).
Figure 4 in A taxonomic revision of fossil freshwater pearl mussels (Bivalvia: Unionoida: Margaritiferidae) from Pliocene and Pleistocene deposits of Southeastern Europe
Figure 4. Subfossil shells of Pseudunio flabellatiformis (Grigorowitch-Beresowski, 1915) comb. rev. from the outcrop of the Middle Pleistocene riverine deposits near Sucleia village, paleo-Dniester River valley, Transnistria, Moldova: A) specimen no. 1 (RMBH); B) specimen no. Sc1 (RMBH); C) specimen no. Sc5 (RMBH); D) specimen no. Sc8 (RMBH); E) specimen no. Sc12 (RMBH); F) specimen no. Sc13 (RMBH). Scale bar = 20 mm. Photos: Artem A. Lyubas.
Figure 6 in A taxonomic revision of fossil freshwater pearl mussels (Bivalvia: Unionoida: Margaritiferidae) from Pliocene and Pleistocene deposits of Southeastern Europe
Figure 6. Shells of the recent Pseudunio auricularius (Spengler, 1793): A) Indre River near Huismes commune, Loire Basin, France (SMF, voucher no. 307623); B) Ebro River near Cenicero, La Rioja, Spain (MNCN, voucher no. 15.07/197); C) Loire River upstream of Champtoceaux commune, Maine-et-Loire, France (SMF, voucher no. 307850); D) Garonne River, France (MNCN, voucher no. 15.07/178); E) Indre River near Huismes commune, Loire Basin, France (SMF, voucher no. 307623); F) Ebro River near Amposta city, Tarragona, Spain (MNCN, voucher no. 15.07/10366). Scale bar = 20 mm. Photos: Artem A. Lyubas & Ilya V. Vikhrev.
Figure 5 in A taxonomic revision of fossil freshwater pearl mussels (Bivalvia: Unionoida: Margaritiferidae) from Pliocene and Pleistocene deposits of Southeastern Europe
Figure 5. Scatter plot of PCA based on the shell measurements of our Pseudunio sample from the Sucleia locality and the type series of fossil nominal taxa from the Speya and Blizhniy Khutor localities (Chepalyga, 1964, 1965). The component 1 and component 2 accounted for 98.8% and 1.0% of the total variance, respectively.
Figure 3 in A taxonomic revision of fossil freshwater pearl mussels (Bivalvia: Unionoida: Margaritiferidae) from Pliocene and Pleistocene deposits of Southeastern Europe
Figure 3. Distribution ranges of Pseudunio taxa. The range of each species is illustrated based on the corresponding river drainages: 1 – former range of P. auricularius based on fossil and recent records (Araujo and Moreno, 1999; Araujo and Ramos, 2001; Prie et al., 2018); 2 – range of P. homsensis based on recent records (Vikhrev et al., 2017); 3 – range of P. marocanus based on recent records (Lopes-Lima et al., 2018); 4 – former range of P. flabellatiformis with its synonyms (M. moldavica syn. nov., M. robusta robusta syn. nov., M. robusta speensis syn. nov., and M. robusta tirassica syn. nov.) based on fossil records (Bogatchev, 1961; Chepalyga, 1964, 1965, 1967; Bolotov et al., 2016). Stars indicate records of P. flabellatiformis from the Pliocene (blue) and Pleistocene (red) deposits of Southeastern Europe (Bogatchev, 1961; Chepalyga, 1964, 1965, 1967; Bolotov et al., 2016).
Figure 2. Subfossil riverbed substrate with a in A taxonomic revision of fossil freshwater pearl mussels (Bivalvia: Unionoida: Margaritiferidae) from Pliocene and Pleistocene deposits of Southeastern Europe
Figure 2. Subfossil riverbed substrate with a Pseudunio flabellatiformis shell, Sucleia outcrop, paleo-Dniester River valley, Middle Pleistocene, Moldova. Scale bar = 100 mm. Photo: Teodor F. Obada.
Figure 5 in Study of the integument that covering back and stinger of the freshwater stingray Potamotrygon rex (Chondricthyes, Potamotrygonidae)
Figure 5. Histochemistry of the Potamotrygon rex stingray: back (A: B: C: D; E) and stinger (F; G; H, I). (A) Micrograph showing mucous cells positive by the PAS histochemical method. (B) Image magnification showing that epithelial cells also presented positive cytoplasm to PAS, as well as the basal membrane (Bm). (C) Alcian Blue positive epithelial cells. (D) Epithelial cells positive to Bromophenol Blue, detail (Pr) Protein reserve strongly positive for Bromophenol Blue. (E) granulosa cells positive to Bromophenol Blue. (F, G, H, I) Stinger regions with all Bromophenol Blue positive cells. Ct- connective tissue; Bm- basal membrane; Mc – mucous cell; Pr- protein reserve (arrows); Mr- mineralized region; Gc – granulosa cell; Cm- chromatophores; DLR - dorsolateral region; VLR- ventrolateral region.
Figure 1 in Study of the integument that covering back and stinger of the freshwater stingray Potamotrygon rex (Chondricthyes, Potamotrygonidae)
Figure 1. Collection sites for the tissues of the back and stinger of the Potamotrygon rex stingray, numbered according to their position. (A) Back of the stingray: 1- median tail; 2- base of the tail; 3- cephalic region; 4- left lateral fin; 5- right lateral fin. (B) Stinger: 1- apex; 2-middle and 3- base. (C) Scheme showing transversal section of the stinger regions that were analyzed under light microscopy. DR- Dorsal Region, DLR- Dorsolateral Region, VLR- Ventrolateral Region.
Figure 3 in Study of the integument that covering back and stinger of the freshwater stingray Potamotrygon rex (Chondricthyes, Potamotrygonidae)
Figure 3. Photomicrograph of the back and stinger of the Potamotrygon rex's epidermis. (A) General view of the back. (C) Detail of the epithelial tissue of the back showing the layers: Sup- superficial; Int- intermediary; Bas- basal. (E) Detail of the basal layer showing the granulosa cell (arrow). (B. D and F) Different regions of the stinger and the different layers of the epithelium: Sup- superficial, Intintermediate, Bas- basal. (G) Cross section of the stinger showing the superficial (Sup) and intermediate (Int) layers, where it is possible to notice the epithelial cells of the intermediate layer. Et- epithelial tissue, Ct- connective tissue; Dd- dermal denticle; Mc- mucous cell; Gc – granulosa cell; Pr- protein reserve; Cm- chromatophores; DLR - dorsolateral region; VLR- ventrolateral region; Mr- mineralized region. (A-F) H&E stain. (G) PAS stain.
Figure 2 in Study of the integument that covering back and stinger of the freshwater stingray Potamotrygon rex (Chondricthyes, Potamotrygonidae)
Figure 2. Adult female specimen of the stingray Potamotrygon rex. (A) Dorsal view of the stingray. (B) Tail of the stingray with two stingers attached to the middle portion of the tail, in the dorsal region, where the outermost stinger (*) is larger than the innermost one.
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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)
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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.