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23,351 results for “Comparative”
Fig. 14 in Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis
Fig. 14. Left lateral view of opercular region of Trichomycterus immaculatus (Trichomycterinae), LIRP 285 (83.7 mm SL).
Fig. 29 in Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis
Fig. 29. Dorsal view of head of Vandellia sanguinea (Vandelliinae), LIRP 7414 (77.1 mm SL). Right adductor operculi, dilatator operculi, levator operculi, and protractor operculi removed.
Fig. 11 in Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis
Fig. 11. Left lateral view of region of adductor mandibulae region of Trichomycterus cf. iheringi (Trichomycterinae), LIRP 3182 (72.2 mm SL). Arrow indicates posteroventral bundle of A2' which apparently corresponds to the "A1-OST" of Adriaens et al. (2010) (see "Discussion: Trichomycterinae").
Fig. 15 in Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis
Fig. 15. Left lateral view of head of Sarcoglanis simplex (Sarcoglanidinae), LIRP 7437 (16.9 mm SL). Antorbital and sesamoid supraorbital bone removed.
Fig. 18 in Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis
Fig. 18. Dorsal view of head of Listrura tetraradiata (Glanapteryginae), MNRJ 31534 (paratype; 39.0 mm SL). Antorbital, sesamoid supraorbital, and core of nasal barbels removed; right cores of maxillary and rictal barbels, buccopalatal membrane, coronomaxillar cartilage, maxilla, lower jaw, interopercle, adductor mandibulae, dilatator operculi, and levator operculi removed.
Fig. 32 in Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis
Fig. 32. Most parsimonious phylogram of relationships of Trichomycteridae derived from character matrix in Table 2 with diagnostic characters plotted according to the most parsimonious reconstruction. Characters numbered as in text and Table 2; synapomorphic state indicated after a period (.) for multistate characters.
Fig. 21 in Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis
Fig. 21. Medial view of right adductor mandibulae and attached lower jaw of Tridentopsis pearsoni (Tridentinae), MZUSP 38671 (18.3 mm SL). Image flipped horizontally to facilitate comparisons.
Fig. 25 in Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis
Fig. 25. Dorsolateral view of left adductor mandibulae and attached lower jaw of Parastegophilus paulensis (Stegophilinae), LISDEBE 1312 (46.5 mm SL).
Fig. 26 in Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis
Fig. 26. Dorsal view of right anterior region of head of Ochmacanthus flabelliferus (Stegophilinae), LIRP 7439 (33.0 mm SL). Arrow indicates attachment ofA2' section of adductor mandibulae to buccopalatal membrane.
Fig. 17 in Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis
Fig. 17. Medial view of left adductor mandibulae and attached lower jaw of Microcambeva ribeirae (Sarcoglanidinae), MZUSP 65764 (41.8 mm SL).
Fig. 20 in Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis
Fig. 20. Left lateral view of head of Tridentopsis pearsoni (Tridentinae), MZUSP 38671 (18.3 mm SL).
Fig. 24 in Dorsolateral head muscles of the catfish families Nematogenyidae and Trichomycteridae (Siluriformes: Loricarioidei): comparative anatomy and phylogenetic analysis
Fig. 24. Posterior view of left adductor mandibulae and attached lower jaw of Haemomaster venezuelae (Stegophilinae), LIRP 7438 (36.9 mm SL).
Fig. 2 in Comparative feeding ecology and habitats use of Crenicichla species (Perciformes: Cichlidae) in a Venezuelan floodplain river
Fig. 2. Map showing location of the Cinaruco River, a tributary of the Orinoco River in Venezuela's Apure State; the study reach is outlined with a rectangle.
Fig. 4 in Comparative feeding ecology and habitats use of Crenicichla species (Perciformes: Cichlidae) in a Venezuelan floodplain river
Fig. 4. Number of immature and mature gonads encountered in C. lugubris (a) and C. aff. wallacii (b) of different size classes during the dry season. (black barra) Mature (gonad state> 3); (white barra) immature (gonad state 1-2). C. lugubris (n = 102), C. aff. wallacii (n = 108).
Fig. 9 in Comparative analysis of spermiogenesis and sperm ultrastructure in Callichthyidae (Teleostei: Ostariophysi: Siluriformes)
Fig. 9. Spermatozoa of Megalechis thoracata. a) Longitudinal section. b and c) Nucleus in cross sections. d) Detail of centriolar arrangement. e to j) Midpiece in longitudinal and transverse sections showing mitochondria, elongated vesicles, and cytoplasmic channel. k and l) Flagellum in longitudinal and cross sections. (a to e, h) X 17000; (f, i, j) X 18400; (g) X 11925; (k) X 23000; (l) X 13950. D: distal centriole; E: electron-dense structure; F: flagellum; N: nucleus; P: proximal centriole; V: vesicles; Asterisk: mitochondria, Arrow: cytoplasmic channel.
Fig. 8 in Comparative analysis of spermiogenesis and sperm ultrastructure in Callichthyidae (Teleostei: Ostariophysi: Siluriformes)
Fig. 8. Spermatozoa of Hoplosternum littorale. a) Spermatozoon in longitudinal section. b and c) Nucleus in cross sections. d) Detail of centriolar arrangement. e to j) Midpiece in longitudinal and transverse sections showing mitochondria, elongated vesicles, and cytoplasmic channel. k) Flagellum in longitudinal section. j-inset) Flagellum in cross section showing classical (9+2) axoneme. (a, b, h) X 17000; (c) X 13800; (d to g) X 23000; (i) X 33600; (j, k) X 31500; (j-inset) X 57500. D: distal centriole; E: electron-dense structure; F: flagellum; N: nucleus; P: proximal centriole; V: vesicles; Asterisk: mitochondria, Arrow: cytoplasmic channel.
Fig. 7 in Comparative analysis of spermiogenesis and sperm ultrastructure in Callichthyidae (Teleostei: Ostariophysi: Siluriformes)
Fig. 7. Spermiogenesis in Callichthyinae. a to h) Hoplosternum littorale. a) Spermatid cyst. b and d) Early spermatids (longitudinal sections). c) Centriolar arrangement. e) Late spermatid. f) Midpiece showing mitochondria and vesicles (cross section). g and h) Flagellum (longitudinal and cross sections). i to m) Megalechis thoracata. i) Early spermatid in longitudinal section. j) Late spermatid. k) Midpiece showing mitochondria, cytoplasmic channel, and vesicles (cross section). l) Centriolar arrangement. m) Flagellum in longitudinal section. n to q) Callichtys callichthys. n and o) Early spermatids in longitudinal sections. p) Midpiece showing mitochondria. q) Flagellum in longitudinal section. (a) X 7750; (b, f, i, n, p) X 13250; (c, g, k, m) X 17000; (d) X 10200; (e, j) X 11900; (h) 20400; (l) X 23000; (o) X 13600; (q) X 31500. D: distal centriole; F: flagellum; N: nucleus; P: proximal centriole; S: Setoli cell; V: vesicles; Asterisk: mitochondria, Arrow: cytoplasmic channel; Arrowhead: lateral membranous compartment.
Fig. 6 in Comparative analysis of spermiogenesis and sperm ultrastructure in Callichthyidae (Teleostei: Ostariophysi: Siluriformes)
Fig. 6. Spermatozoa of Aspidoras poecilus. a) Spermatozoon longitudinal section. b and c) Nucleus in longitudinal and cross sections. d) Centriolar arrangement. e to i) Midpiece in longitudinal and transverse sections showing mitochondria, vesicles, cytoplasmic channel, and electron-dense circular structures. j and k) Flagellum in longitudinal sections. j-inset and l) Flagellum in cross sections. (a, b, f, j, k) X 23000; (c, d) X 17000; (e) X 22050; (g, h) X 25200; (i) X 18400; (j-inset, l) X 57500. 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. 5 in Comparative analysis of spermiogenesis and sperm ultrastructure in Callichthyidae (Teleostei: Ostariophysi: Siluriformes)
Fig. 5. Spermatozoa of Scleromystax lacerdai. a) Spermatozoon longitudinal section. b and c) Nucleus in longitudinal and cross sections. d) Detail of centriolar arrangement. e to g) Midpiece in longitudinal and transverse sections showing mitochondria and vesicles. h) Flagellum in longitudinal section. h-inset) Flagellum in cross section. (a, d, e) X23000; (b, c) X 17000; (f) X25200; (g) X 20400; (h) X 42000; (h-inset) X 32200. 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. 4 in Comparative analysis of spermiogenesis and sperm ultrastructure in Callichthyidae (Teleostei: Ostariophysi: Siluriformes)
Fig. 4. Spermatozoa of Corydoras aeneus. a) Longitudinal section. b and c) Nucleus in cross sections. d) Detail of centriolar arrangement. e to j) Midpiece longitudinal and transverse sections showing mitochondria, vesicles, membranous compartment, and electron-dense circular structure. k and l) Flagellum in longitudinal sections. m and n) Flagellum in cross sections. (a, d) X 17000; (b) X 13800; (c) X 15750; (e, h, k, l) X 23000; (f) X 20400; (g) 44100; (i, j) X 31500; (m) X 47250; (n) X 57500. 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.
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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.