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Fig. 3 in Comparative analysis of spermiogenesis and sperm ultrastructure in Callichthyidae (Teleostei: Ostariophysi: Siluriformes)
Fig. 3. Spermatozoa of Corydoras flaveolus. a) Spermatozoon longitudinal section. b and c) Nucleus in transverse sections. d) Detail of centriolar arrangement. e to j) Midpiece longitudinal and transverse sections showing mitochondria, vesicles, cytoplasmic channel, and electron-dense circular structure. k and l) Flagellum longitudinal sections. m and n) Flagellum cross sections. (a) X 17000; (b, c) X 15750; (d) X 28350; (e, f, h) X 23000; (g, m) X 42000; (i) X 18900; (j) X 25200; (k) X 25300; (l, n) X 31500. B: basal body; D: distal centriole; E: electron-dense structure; F: flagellum; N: nucleus; P: proximal centriole; V: vesicles; Asterisk: mitochondria, Arrow: cytoplasmic channel; Arrowhead: lateral membranous compartment; Double arrowhead: electron-dense material between the centrioles; Lozenge: electron-dense circular structure.
Fig. 10 in Comparative analysis of spermiogenesis and sperm ultrastructure in Callichthyidae (Teleostei: Ostariophysi: Siluriformes)
Fig. 10. Spermatozoa of Callichthys callichthys. a) Spermatozoon in longitudinal section. b and c) Nucleus in longitudinal and cross sections. d) Centriolar arrangement. e to g) Midpiece in longitudinal and transverse sections showing mitochondria, vesicles, and cytoplasmic channel. h and i) Flagellum in longitudinal and cross sections. (a, g, h) X 31500; (b, e) X 23000; (c, f) X 17000; (d, i) X 42000. D: distal centriole; E: electron-dense structure; F: flagellum; N: nucleus; P: proximal centriole; V: vesicles; Asterisk: mitochondria, Arrow: cytoplasmic channel; Arrowhead: lateral membranous compartment.
Fig. 1. Photomicrography showing a in Comparative analysis of spermiogenesis and sperm ultrastructure in Callichthyidae (Teleostei: Ostariophysi: Siluriformes)
Fig. 1. Photomicrography showing a general view of the semi-cystic spermatogenesis in Corydoras flaveolus, Corydoradinae (a and b) and of the cystic spermatogenesis in Hoplosternum littorale, Callichthyinae (c and d). Scale bar a and c = 20 µm, b and d = 10 µm. CI: cysts of primary spermatocytes; G: spermatogonia; T: spermatids in the lumen of germinative compartment; Z spermatozoa, Arrow: spermatids cysts.
Fig. 2 in Comparative analysis of spermiogenesis and sperm ultrastructure in Callichthyidae (Teleostei: Ostariophysi: Siluriformes)
Fig. 2. Spermiogenesis in Corydoradinae. a-d) Corydoras flaveolus; e-h) Corydoras aeneus; i) Scleromystax lacerdai. a) Spermatids together with spermatozoa in the lumen of the testicular tubules. b-d) Early spermatids connected to the Sertoli cells surface. e and e-insets) Arrangement of the centriolar complex showing electron-dense material between centrioles, and flagellum with classical (9+2) axoneme. f to h) Midpiece showing mitochondria, vesicles, and electron-dense circular structure (longitudinal sections). i) Late spermatid. (a) X 3250; (b) X 4875; (c, d) X 5750; (e) X 13250; (e-inset left, i) X 17000; (e-inset right) X 25850; (f, g) X 9750; (h) X 7750. C: centriolar complex; D: distal centriole; L: lumen; N: nucleus; P: proximal centriole; S: Sertoli cell; V: vesicles; Z: spermatozoon; Asterisk: mitochondria, Arrow: cytoplasmic channel; Arrowhead: point connection; Double arrowhead: electron-dense material between the centrioles; Lozenge: electron-dense circular structure.
Fig. 2 in Scientific Note Comparing on site human and video counts at Igarapava fish ladder, Southeastern Brazil
Fig. 2. Still image capture of two Piaractus mesopotamicus and one Pimelodus maculatus, upstream direction, registered by the video counter.
Fig. 1 in Scientific Note Comparing on site human and video counts at Igarapava fish ladder, Southeastern Brazil
Fig. 1. Camera configuration with Sony Camera (DCR-TRV950) in frame center. The two vertically oriented full spectrum lights are adjacent to the window; above is the infrared light bulb.
Fig. 4. Microglanis aff. parahybae spermatozoa. A in Comparative description and discussion of spermiogenesis and spermatozoal ultrastructure in some species of Heptapteridae and Pseudopimelodidae (Teleostei: Siluriformes)
Fig. 4. Microglanis aff. parahybae spermatozoa. A: longitudinal section. A: X 9800. B: nucleus in cross section. B: X 17000. C: longitudinal sectional of the head and initial midpiece region. C: X 23000. D-E: midpieces in longitudinal sections. D: X 31500; E: X 21500. Insert: proximal centriole. X 59000. F: midpiece in cross sections. F: X 17000. C: centriolar complex; F: flagellum; H: head; M: mitochondria; MP: midpiece; N: nucleus; V: vesicle; arrow: cytoplasmic channel; asterisks: nuclear fossa.
Fig. 6. Pimelodella gracilis spermatozoa. A in Comparative description and discussion of spermiogenesis and spermatozoal ultrastructure in some species of Heptapteridae and Pseudopimelodidae (Teleostei: Siluriformes)
Fig. 6. Pimelodella gracilis spermatozoa. A: longitudinal section. A: X 21000. B: nucleus in cross section. B: X 21000. C, E: midpiece in longitudinal sections. C: X 20300; E: X 25200. D, F,G: midpieces in cross sections. D: X 29700; F: X 29400; G: X 29000. H: flagella in cross and longitudinal sections. H: X 25200. C: centriolar complex; F: flagellum; H: head; M: mitochondria; MP: midpiece; N: nucleus; V: vesicle.
Fig. 3. Pimelodella gracilis spermatids. A in Comparative description and discussion of spermiogenesis and spermatozoal ultrastructure in some species of Heptapteridae and Pseudopimelodidae (Teleostei: Siluriformes)
Fig. 3. Pimelodella gracilis spermatids. A: early spermatids in longitudinal section. A: X 12000. B, D: longitudinal sections. B: X 13000; D: X 14500. C, E, F: midpieces in cross sections. C: X 23200; E: X 21000; F: 18900. C: centriolar complex; F: flagellum; M: mitochondria; N: nucleus; V: vesicle; arrow: pseudo-cytoplasmic channel.
Fig. 1. Microglanis aff. parahybae spermatids. A-D in Comparative description and discussion of spermiogenesis and spermatozoal ultrastructure in some species of Heptapteridae and Pseudopimelodidae (Teleostei: Siluriformes)
Fig. 1. Microglanis aff. parahybae spermatids. A-D: early spermatids in longitudinal (A) and cross sections (B-D). A: X 10200; B: X 9750; C: 9750; D: X 13600. E-G: spermatids in longitudinal sections. E: X 13600; F: X 18400; G: X 13600. H: centriolar complex. H: X 34000. I: flagellum in cross section. I: X 59000. J: mitochondria. J: X 17200. K: flagellum in longitudinal section. K: X 23800. L-O: midpieces in longitudinal sections. L: X 18400; M: X 16100; N: X 17000; O: X 17000. A: axonema; C: centriolar complex; D: distal centriole; F: flagellum; M: mitochondria; N: nucleus; P: proximal centriole; V: vesicle; arrow: cytoplasmic channel; asterisks: nuclear fossa.
Fig. 1 in Comparative dietary analysis of two populations of Mimagoniates rheocharis (Characidae: Glandulocaudinae) from two streams of Southern Brazil
Fig. 1. Percent composition of dietary items found in the stomachs of Mimagoniates rheocharis. (a) Station 1, March 1998 to March 1999 and (b) Station 2, January 1998 to February 1999.
Figure 7 in Comparative anatomy of the mesosomal organs of scorpions (Chelicerata, Scorpiones), with implications for the phylogeny of the order
Figure 7. Lateral lymphoid organs of selected scorpion species. A, Hadrurus a. arizonensis Ewing, 1928: seminal receptacle, coxal glands, and tubes arising from diaphragm. B, Urodacus planimanus Pocock, 1893: enlarged tubes and planar ovariuterus. Abbreviations: cg, coxal glands; d, diaphragm; lo, lymphoid organs; sr, seminal receptacle (spermathecae); o, ovariuterus.
Figure 5 in Comparative anatomy of the mesosomal organs of scorpions (Chelicerata, Scorpiones), with implications for the phylogeny of the order
Figure 5. Ovariuterine follicles, depicting variation in shape: round follicles of apoikogenic scorpions (A–C); more elongated, thumb-like follicles of katoikogenic scorpions (D). A, Hadruroides charcasus (Karsch, 1879). B, Timogenes elegans (Mello-Leitão, 1931): ventral view showing small immature follicles and larger maturing follicles. C, Smeringurus mesaensis (Stahnke, 1961): showing the trophic network attached to ovariuterine tubule and completely covering the maturing follicle with the trophic lobe. D, Urodacus sp.: mature follicles. Abbreviations: f, maturing follicles; i, immature follicles; ot, ovariuterine tubule; p, pedicel; t, trophic network; tl, trophic lobe. Scale bars: 1 mm.
Figure 6 in Comparative anatomy of the mesosomal organs of scorpions (Chelicerata, Scorpiones), with implications for the phylogeny of the order
Figure 6. Variation in digestive gland: compact digestive gland (A); digitiform digestive gland (B); hemidigitiform digestive gland, showing compact dorsal part (C), and with compact dorsal part removed, showing ovariuterus lying over lobate ventral portion of gland (D). Developmental types: apoikogenic development (A); katoikogenic development (B–D). A, Smeringurus mesaensis (Stahnke, 1957): with part of digestive gland removed to expose ovariuterus. B, Opistophthalmus cavimanus Lawrence, 1928. C, D, Urodacus sp. Abbreviations: f, follicles; l, lobules of digestive gland; ot, ovariuterine tubule. Scale bars: 2 mm.
Figure 19 in Comparative morphology, biology and phylogeny of terminal-instar larvae of the European species of Toryminae (Hym., Chalcidoidea, Torymidae) parasitoids of gall wasps (Hym. Cynipidae)
Figure 19. Bootstrap consensus tree with uniform weights and no constraints from phylogenetic analyses of larval data. Number below branches indicate bootstrap support values above 50%.
Figure 16 in Comparative morphology, biology and phylogeny of terminal-instar larvae of the European species of Toryminae (Hym., Chalcidoidea, Torymidae) parasitoids of gall wasps (Hym. Cynipidae)
Figure 16. Mandibles of terminal-instar larvae of Torymidae. A, Torymus nobilis (anterior left). B, Torymus nobilis (anterior right). C, Torymus notatus (anterior left). D, Torymus notatus (anterior right). E, Torymus rubi (anterior left). F, Torymus rubi (anterior right).
Figure 13 in Comparative morphology, biology and phylogeny of terminal-instar larvae of the European species of Toryminae (Hym., Chalcidoidea, Torymidae) parasitoids of gall wasps (Hym. Cynipidae)
Figure 13. Terminal-instar larvae of Torymidae (anterior view of mouth parts). A, Torymus geranii. B, Torymus nobilis. C, Torymus notatus. D, Torymus rubi.
Figure 15 in Comparative morphology, biology and phylogeny of terminal-instar larvae of the European species of Toryminae (Hym., Chalcidoidea, Torymidae) parasitoids of gall wasps (Hym. Cynipidae)
Figure 15. Mandibles of terminal-instar larvae of Torymidae. A, Pseudotorymus papaveris (posterior right). B, Pseudotorymus papaveris (posterior left). C, Torymus affinis (posterior right). D, Torymus affinis (posterior left). E, Torymus auratus (anterior left). F, Torymus auratus (anterior right). G, Torymus bedeguaris (posterior right). H, Torymus bedeguaris (posterior left). I, Torymus chloromerus (anterior left). J, Torymus chloromerus (anterior right). K, Torymus cingulatus (anterior left). L, Torymus cingulatus (anterior right). M, Torymus cyaneus (anterior left). N, Torymus cyaneus (anterior right). O, Torymus geranii (anterior left). P, Torymus geranii (anterior right).
Figure 12 in Comparative morphology, biology and phylogeny of terminal-instar larvae of the European species of Toryminae (Hym., Chalcidoidea, Torymidae) parasitoids of gall wasps (Hym. Cynipidae)
Figure 12. Terminal-instar larvae of Torymidae (anterior view of mouth parts). A, Adontomerus impolitus. B, Adontomerus crassipes. C, Chalcimerus borceai. D, Glyphomerus tibialis. E, Glyphomerus stigma. F, Idiomacromerus centaureae. G, Idiomacromerus silybi. H, Idiomacromerus papaveris. I, Pseudotorymus papaveris. J, Torymus affinis. K, Torymus auratus. L, Torymus bedeguaris. M, Torymus chloromerus. N, Torymus cingulatus. O, Torymus cyaneus.
Figure 18 in Comparative morphology, biology and phylogeny of terminal-instar larvae of the European species of Toryminae (Hym., Chalcidoidea, Torymidae) parasitoids of gall wasps (Hym. Cynipidae)
Figure 18. Strict consensus tree of 200 most parsimonious trees reconstructed from phylogenetic analyses of larval data.
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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)
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.