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43 results for “plesiomorphic”
Figure 2 in New species of the plesiomorphic genus Nixonia Masner (Hymenoptera, Platygastroidea, Platygastridae) from South Africa
Figure 2. Nixonia mcgregori van Noort & Johnson, sp. n., female, holotype. A habitus, lateral view B habitus, dorsal view C head, mesosoma, lateral view D mesosoma, dorsal view E head, anterior view F metasoma dorsal view. Scale bars in millimeters. (http://www.morphbank.net/?id=999008677)
Fig. 7 in New Baliomorpha species (Trichoptera, Hydropsychidae) from Papua, Indonesia, with plesiomorphic state of the phallic head János Oláh & Peter Jan de Vries
Fig. 7. Baliomorpha cyclopsensis spec. nov. holotype, male. Waterfall, near Sentani, Cyclops Mountains, Papua, Indonesia [MZB] (photo: Rob de Vos).
Figs. 8-9 in New Baliomorpha species (Trichoptera, Hydropsychidae) from Papua, Indonesia, with plesiomorphic state of the phallic head János Oláh & Peter Jan de Vries
Figs. 8-9. Habitat of Baliomorpha cyclopsensis spec. nov. Fig. 8. Waterfall near Sentani, Cyclops Mountains (photo: Rob de Vos); Fig. 9. View at Sentani opposite of the waterfall (photo: Peter Jan de Vries).
Linked collectors and determiners for: New species of the plesiomorphic genus Nixonia Masner (Hymenoptera, Platygastroidea, Platygastridae) from South Africa.
Natural history specimen data linked to collectors and determiners held within, "New species of the plesiomorphic genus Nixonia Masner (Hymenoptera, Platygastroidea, Platygastridae) from South Africa". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/fc353d65-89bb-4f5e-8d25-de00f03bf8be">https://bionomia.net/dataset/fc353d65-89bb-4f5e-8d25-de00f03bf8be</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/fc353d65-89bb-4f5e-8d25-de00f03bf8be">https://gbif.org/dataset/fc353d65-89bb-4f5e-8d25-de00f03bf8be</a>. Formatted as a Frictionless Data package.
Paleoneurology of stem palaeognaths clarifies the plesiomorphic condition of the crown bird central nervous system
<p>This dataset contains additional brain and endosseous labyrinth endocasts generated by Widrig et al. (2024) Paleoneurology of stem palaeognaths clarifies the plesiomorphic condition of the crown bird central nervous system.</p>
FIGURE 2 in A new genus of Sabellidae (Annelida, Polychaeta) from Antarctica, with discussion of relationships among plesiomorphic genera within Sabellinae
FIGURE 2. TEM photographs of spermatozoa. Euchone pallida: A) entire spermatozoan; B) particular of acrosoma; Euchoneira knoxi gen. sp. nov.: C) entire spermatozoan; D) details of acrosome.
FIGURE 1. Euchone pallida. A in A new genus of Sabellidae (Annelida, Polychaeta) from Antarctica, with discussion of relationships among plesiomorphic genera within Sabellinae
FIGURE 1. Euchone pallida. A) anterior end, dorsal view; B) staining pattern with green methyl, ventral view of the thorax and of the mid-abdomen; C) end of radiole; D) anal depression; E) internal structures of the branchial crown; F) inferior anterior thoracic chaeta; G) thoracic uncinus; H) abdominal uncinus from the middle of the abdomen; I) abdominal uncinus from the anal depression. dl=dorsal lip; dpa=dorsal pinnular appendages; dra=dorsal radiolar appendages; vl=ventral lip; vra=ventral radiolar appendages.
FIGURE 5 in A new genus of Sabellidae (Annelida, Polychaeta) from Antarctica, with discussion of relationships among plesiomorphic genera within Sabellinae
FIGURE 5. Euchoneira knoxi gen. sp. nov. A) Size distribution of individuals in the sampled population; B) Egg size distribution inside individuals.
FIGURE 4 in A new genus of Sabellidae (Annelida, Polychaeta) from Antarctica, with discussion of relationships among plesiomorphic genera within Sabellinae
FIGURE 4. Euchoneira knoxi sp. nov. A) collar, dorsal views; B) collar, lateral view; C) anal depression, ventral view; D) anal depression, lateral view; E) superior anterior thoracic chaeta; F) inferior anterior thoracic chaetae; G) Thoracic uncini; H) abdominal chaeta; I) abdominal uncinus from the middle of the abdomen; L) abdominal uncinus from the anal depression.
FIGURE 3 in A new genus of Sabellidae (Annelida, Polychaeta) from Antarctica, with discussion of relationships among plesiomorphic genera within Sabellinae
FIGURE 3. Euchoneira knoxi sp. nov. A) anterior end, dorsal view; B) anterior end ventral view; C) end of radiole; D) staining pattern, ventral view of the anterior end; E) internal structures of the crown; F) particular of the first dorsal pinnular appendage. dl=dorsal lip; dpa=dorsal pinnular appendages; vl=ventral lip; vra=ventral radiolar appendages.
FIGURE 22. A–H Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 22. A–H Nanohystrix hammerae n. sp., gregarine gut parasites of adult (A–F) and tritonymph (G), and external commensal (H). A, coarse parasagittal section through caecum of uncleared adult female, showing entire cavity filled with gregarine trophozoites and gamonts; B, gamonts in tandem association, with insert showing slightly enlarged region of syzygy; C, free trophozoites in colon; D, possible developing oocyst; E, trophozoite attached to caecum wall; F, posterior of two gamonts, showing epicytic striae; G, short, young trophozoites in cleared tritonymph; H, secondary capilliconidium of Basidiobolus sp. (Zygomycota: Entomophthorales) cemented to seta ft" of tarsus III. All composites of 5–10 layers. Scale bars: 100 Μm (A); 20 Μm (B, C, G); 10 Μm (D–F, H).
FIGURE 20. A–I Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 20. A–I Nanohystrix hammerae n. sp. juveniles, stereo- (A–C) and compound (D–I) light microscope images. A, larva with all legs in walking position, lateral aspect; B, larva, anterior half in dorsal aspect, with right legs I, II; C, deutonymph with legs I and II laterally directed, dorsal aspect; D, tritonymph, left anterolateral region of hysterosoma showing muscles, cf. Fig. 8A; E, tritonymph, lateral aspect (filled with food boluses and gregarine parasites, see Fig. 22G),with insert showing enlargement of prodorsal strut; F, tritonymph, seta e1 and cuticular disk cd4, dorsolateral aspect, anterior to left; G, protonymph, distal part of tarsus III, lateral aspect; H, tritonymph, distal part of tarsus III, dorsal aspect; I, protonymph, left leg IV, abaxial aspect (seta ft" torn away). Abbreviations: cd4 (cuticular disk), e1.mu (depressor muscles of seta e1); pr.mu (prodorsal retractor muscles), str (prodorsal strut); other labels indicate setae (see text). D–I composites of 5–20 layers. Scale bars: 100 Μm (A B, E); 25 Μm (D, F–I). Scale not determined for C, probably similar to A.
FIGURE 13. A–E Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 13. A–E Nanohystrix hammerae n. sp., gnathosomal elements of adult. A, central region of subcapitulum, ventral aspect; B, right palp, abaxial aspect (integumental granules shown only on basal segment); C, distal portion of palp tarsus with enlarged section of fused eupathidia; D, left chelicera, adaxial aspect; E. Right chelicera, abaxial aspect. Abbreviations: c.fd (carina of fixed digit), c.md (carina of movable digit), d (postadoral articulation), lg (labiogenal articulation), G (gena), H (mentum), LL (lateral lip), Ru (rutellum), sc (scale-like flap), tr.t (trochanteral tectum), Tr (trochanter), vb (vesicular band of chelicera); other labels indicate setae (see text). Scale bars: 50 Μm (D, E); 25 Μm (A, B); 10 Μm (C).
FIGURE 15. A–I Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 15. A–I Nanohystrix hammerae n. sp. adults, transmitted light compound microscope images of dissected parts of gnathosoma. A, dorsal aspect of subcapitulum and palps with enlarged insert showing medial notch in posterior margin (m.no); B, distal subcapitulum in strong DIC, dorsal aspect, showing birefringence of rutellum; C, same, but with focus on tip of labrum; D, right posterolateral corner of subcapitulum, lateral aspect (anterior to right), showing postpalpal seta and tubercle; E, chelicera, ventral aspect; F. chelicera, adaxial aspect, with insert showing lamellated organ; G, enlargement of ventrodistal region of cheliceral trochanter (cf. E), showing marginal spines and tectum with hyaline fringe (black arrow); H, proximodorsal region of chelicera showing porose cuticle with spines; I, chelicera in strong DIC illumination, focused internally to show levator tendon of movable digit and associated muscles. All composites of 5–20 layers. Abbreviations: αf (abaxial fissure), c (junction of manubrium with birefringent rutellum), ep (postpalpal seta), l.or (lamellated organ), Ls (labrum), l.mu (levator muscle), l.te (levator tendon of movable digit), Mn (manubrium), m.no (medial notch), m.sp (marginal spines), Ru (rutellum), sub.t (subcapitular tubercle), Tr (trochanter) tr.t (trochanteral tectum), vb (vesicular band). Scale bars: 50 Μm (E, F, I); 25 Μm (A); 10 Μm (B–D, G, H).
FIGURE 10. A–E Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 10. A–E Nanohystrix hammerae n. sp., scanning electron micrographs of adults, ventral aspect (asterisks denote artifacts; most images with unmarked small surface debris). A, anogenital region, peranal valves slightly opened; B, habitus of fully contracted specimen with legs I, II laterally directed, insert showing posterior region of more distended specimen with weaker imbrication of adanal region (cf. arrows); C, coxisternal region; D, peranal seta and soft, finely striated cuticle lateral to it; E, seta 3a. Labels indicate setae (see text). Scale bars: 100 Μm (B); 50 Μm (A, C); 10 Μm (D, E).
FIGURE 14. A–I Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 14. A–I Nanohystrix hammerae n. sp., scanning electron micrographs of adult gnathosomal and leg elements (all with small surface debris artifacts). A, overview of proterosoma, ventral aspect; B, subcapitulum and chelicerae, ventral aspect; C, lateral aspect of gnathosoma and rostrum; D, enlargement of top-central region of B; E, enlargement of labrum, ventral aspect; F, distal part of labrum, anterolateral aspect; G, distal region of palp, lateral aspect; H, leg apotele and distal part of tarsus, near lateral aspect; I, famulus of tarsus I, lateral aspect, with insert showing open tip of hollow barb. Abbreviations: αf (abaxial fissure), c.fd (carina of fixed digit), Ch (chelicera); lg (labiogenal articulation), Ls (labrum); Ru (rutellum); other labels indicate setiform organs (see text). Scale bars: 50 Μm (A); 20Μm (B, C); 10 Μm (G, H); 5 Μm (D–F, I).
FIGURE 7. A–J Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 7. A–J Nanohystrix hammerae n. sp., transmitted light compound microscope images of adults (cleared unless noted). A, right posterior region of prodorsum, dorsal aspect, showing muscle sigilla; B, close-up of general cuticular porosity; C, lateral eye, dorsal view; D, partial lateral aspect of prodorsum and supracoxal region, anterior to right—uncleared specimen showing pigment in lateral eye (insert shows eye from posterodorsal aspect); E, bothridium and base of bothridial seta, lateral aspect with focus near edge of cup; F, same, with focus at center of cup; G, similar to D, but after clearing; H, optical section of hyaline rostral bulge and median eye, lateral aspect, anterior to right (cf. Grandjean 1958b, his Fig. 2); I, anterior view of central rostrum and cheliceral bases, focused on rostral bulge; J, same, focused deeper, on median eye. All composites of 5–20 layers. Abbreviations: bo (bothridium), bt (base of rostral tectum), ca1 (prodorsal carina), Ch (chelicera), cpc (podocephalic canal), oc.l (lateral eye), oc.m (median eye), mu.sl (subcapitular levator muscle), rb (rostral bulge), pK (prodorsal condyle), st (constriction of tectum depth), str (supporting strut), sub.t (subcapitular tubercle); other labels indicate setae (see text). Scale bars: 20 Μm (A, D, G–J); 10 Μm (B); 5 Μm (C, E, F).
FIGURE 3. A–D Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 3. A–D Nanohystrix hammerae n. sp. A, lateral aspect of fully distended female (legs omitted, some setae abbreviated or represented only by basal tubercles); B, sam e, genital region (with plate and genital papillae) and fully extended ovipositor, anterior to right; C, ovipositor, end-view (anterior to top); D, ventrolateral aspect of male genital region, showing spermatopositor in almost lateral aspect. Abbreviations: ca1, ca2 (prodorsal carinae), cd1–5 (cuticular disks), cpc (podocephalic canal), ia, im, ip (lyrifissures), nc (nuchal constriction), ti (tendon insertions); other labels indicate setae (see text). Scale bars: 100 Μm (A, B); 50 Μm (C, D).
FIGURE 1. A–H Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 1. A–H Nanohystrix hammerae n. sp., reflected light stereomicroscope images of adults (genders unknown; multiyear preservation except D). A, dorsal aspect of specimen with legs I, II angled posteriorly; B, ventral aspect of same; C, anterior third in posterodorsal aspect; D, dorsolateral aspect of recently collected specimen; E, dorsal aspect of notogaster; F, lateral aspect with legs I in walking position; G, lateral aspect (anterior half) of specimen with right leg I elevated; H, posterior aspect showing granules (arrows) of paired digestive caeca, seen by transparency. Abbreviations: h.cr (humeral crease); other labels indicate setae (see text). All composites of 10–20 layers. Scale bars: all 100 Μm.
FIGURE 4. A–G Nanohystrix hammerae n in Nanohystricidae n. fam., an unusual, plesiomorphic enarthronote mite family endemic to New Zealand (Acari, Oribatida)
FIGURE 4. A–G Nanohystrix hammerae n. sp., scanning electron micrographs (genders unknown; most with debris artifacts). A, dorsal overview of contracted specimen with erectile setae depressed and legs I, II directed laterally; B, anterodorsal aspect of same (prodorsum fractured centrally), insert includes enlargement of cuticular disk cd1, indicated by black arrow in main figure; C, dorsolateral aspect of hysterosoma of partially distended specimen with setae erected; D, same, enlarged, short arrows on cuticular disks cd5 (insert is enlargement of right disk cd5 showing exudate); E, base of seta e2; F, basal portion of seta d1; G, basal portion of seta f1. Abbreviations; h.cr (humeral crease); other labels indicate setae (see text). Scale bars 100 Μm (A–D); 10 Μm (E–G).
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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
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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.