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222 results for “head morphology”
Figure 6. Head appendages and innervation. A in Systematics, evolution and phylogeny of Annelida - a morphological perspective
Figure 6. Head appendages and innervation. A. Syllis sp. (Syllidae). Anterior end with palps (pa), median (ma) and lateral antennae (la), nuchal organs (no), tentacular cirri on the right broken off. B. Parapionosyllis labronica (Syllidae). Dorsal view, nervous system labelled with antibody against acetylated α-tubulin, appendages supplied with prominent nerves, depth coding. C. Saccocirrus sp. (Saccocirridae). Ventral view, note ventral ciliated band (arrowheads), palps (pa) supplied with numerous ciliated sensory cells. D, E. Nereis sp. (Nereididae). Palp. D. Palp composed of palpophore (pph) and palpostyle (ps) the latter with numerous sensory cilia. E. Longitudinal section showing musculature and coelomic cavity inside palpophore (pph) and connection of palp nerve (pn) with the brain (b). - b = brain, dc = dorsal cirrus, dln = dorsolateral nerve, dn = dorsal nerve, ey = eye, la = lateral antenna, ma = median antenna, no = nuchal organ, pa = palp, pn = palp nerve, pph = palpophore, pr = prostomium, ps = palpostyle, rm = retractor muscle, vc = ventral cirrus. A, C, D: SEM micrographs, Originals S. Raabe & W. Mangerich, Osnabrück; B: cLSM micrograph, original M. Kuper, Osnabrück; E: Azan staining.
Рис. 2. Ментум Λичинок роΑа Chironomus из озера Кенон Fig. 2. Mentum of the Chironomus genus larvae from Lake Kenon in Toxic pollution assessment of Chita TPP-1 cooling reservoir by applying the method of head capsule morphological deformations in chironomid larvae
Рис. 2. Ментум Λичинок роΑа Chironomus из озера Кенон Fig. 2. Mentum of the Chironomus genus larvae from Lake Kenon
Рис. 1. Схема мониторинговых станций на озере Кенон: 1–1.6 — ТЭЦ; 2–2.1 — КСК; 3 — Нефтебаза; 4 — Центр озера; 5 — КаΑаΛинка Fig. 1. Diagram of monitoring stations on Kenon lake: 1–1.6 — TPP; 2–2.1 — KSK; 3 — Tank farm; 4 — Lake Center; 5 — Kadalinka in Toxic pollution assessment of Chita TPP-1 cooling reservoir by applying the method of head capsule morphological deformations in chironomid larvae
Рис. 1. Схема мониторинговых станций на озере Кенон: 1–1.6 — ТЭЦ; 2–2.1 — КСК; 3 — Нефтебаза; 4 — Центр озера; 5 — КаΑаΛинка Fig. 1. Diagram of monitoring stations on Kenon lake: 1–1.6 — TPP; 2–2.1 — KSK; 3 — Tank farm; 4 — Lake Center; 5 — Kadalinka
Fig. 1. Morphological characters used for the analysis. A–B. Head. C–D. Mandible. E–H. Apical maxillary palpomere. I–K in The world fauna of Synchroidae Lacordaire, 1859 (Coleoptera, Tenebrionoidea, Synchroidae)
Fig. 1. Morphological characters used for the analysis. A–B. Head. C–D. Mandible. E–H. Apical maxillary palpomere. I–K. Antenna.
Fig. 10. Head morphology. A–C in Revision of the poorly known Neotropical butterfly genus Zischkaia Forster, 1964 (Lepidoptera, Nymphalidae, Satyrinae), with descriptions of nine new species
Fig. 10. Head morphology. A–C. Zischkaia pacarus (Godart, 1824) (DZ 36.728). A. Ventral view. B. Frontal view. C. Lateral view. D–F. Z. saundersii (Butler, 1867) (DZ 36.029). D. Ventral view. E. Frontal view. C. Lateral view.
Figure. General head scalation pattern for Elaphe sauromates (cs – anterior chin shields; cs' – posterior chin shields; f – frontal; g – gulars; in – internasal; l – loreal; la – upper labials; la' – lower labials; m – mental; p – parietals; pf – prefrontal; prn – prenasal; ptn – postnasal; pto – postocular; pro – preocular; r – rostral; so – supraocular; sbo – subocular; t – temporals; v – ventral shields). in Morphological characteristics of the elusive blotched snake (Elaphe sauromates) at its northwestern range limit (Romania)
Figure. General head scalation pattern for Elaphe sauromates (cs – anterior chin shields; cs' – posterior chin shields; f – frontal; g – gulars; in – internasal; l – loreal; la – upper labials; la' – lower labials; m – mental; p – parietals; pf – prefrontal; prn – prenasal; ptn – postnasal; pto – postocular; pro – preocular; r – rostral; so – supraocular; sbo – subocular; t – temporals; v – ventral shields).
FIGURE 25. Rhadinacanthus longispinus head morphology. 1, 2, NMS G.1891.92.338 in The diplacanthid fishes (Acanthodii, Diplacanthiformes, Diplacanthidae) from the Middle Devonian of Scotland
FIGURE 25. Rhadinacanthus longispinus head morphology. 1, 2, NMS G.1891.92.338 from Gamrie, Banffshire; 1, head region; 2, magnified image of sensory line scales; 3, NMS G.1892.8.15 from Gamrie, Banffshire, head region. 4, 5, NHM OR.43276 from Tynet Burn, Moray: 4, complete specimen, head to left; 5, internal surface of right cheek plate, long anterior circumorbital bone, polygonal tesserae on tectal region. 6, NMS G.1892.8.10 from Gamrie, head region. Scale bars equal 1 cm for 1, 3, 4, 5, 6; 1 mm for 2. Abbreviations: ck.p=cheek plate; co.p=circumorbital plate; e=eye stain; oc.p=occlusal plate; so.sl=supraorbital sensory line. Arrows indicates anterior direction.
Figure 2. 2D in The Woodcock's head: Resolving a morphological oddity using geometric morphometrics
Figure 2. 2D landmarks used in this study following Klingenberg and Marugán-Lobón (2013). Skull scheme modified from Thompson (1942). Abbreviation: BK—beak; O—orbit; B—braincase.
Figure 1 in The Woodcock's head: Resolving a morphological oddity using geometric morphometrics
Figure 1. Different ways in which the skull of the woodcock has been oriented to interpret its anatomy in lateral view. A. As it leans over a table (modified from, Cobb, 1959). Notice how the ear (E) lies nearly anterior to the eye (orbits), and how the latter seem to orient as to direct sight relatively backwards. B. As the bird is flying, as suggested in (and modified from) Thompson (1942). Notice that Thompson argued that the cranial floor (CF) in this posture is horizontal, yet no bone is alluded as to demarcate de basis cranii [sic]. C. As the bird is in alert, as measured by Duijm (1951) in a zoo. Notice that in such head posture of alert the lateral semicircular canal (LSC) in the woodcock is tilted approximately13° (i.e., it is not horizontal when the woodcock is in alert). Interestingly, if the skull is rotated those 13°, head posture matches Thompson's flight orientation.
Figure 3. Geometric morphometrics results. A in The Woodcock's head: Resolving a morphological oddity using geometric morphometrics
Figure 3. Geometric morphometrics results. A. Procrustes residuals (shape data) of the 160 superimposed configurations. The configuration of the woodcock is plotted inside to show how its skull shape maps compared to the rest of birds. B. Isolated average configuration (grey, left) and woodcock (black, right). C. Average and woodcock superimposed to show that the largest difference is in the position of the facial skeleton compared to the neurocranium. D. Same as C yet using the Thin Plate Spline deformation to further stress the craniofacial differences between the woodcock and the average. Notice how craniofacial differences are due to the "rotation" of the face and the neurocranium. E. Thin plate spline deformation of the woodcock compared to the rest of the sample within morphospace (summary of shape variance of Fig. 3A using Relative Warps Analysis, i.e., PCA). Black/thick arrow points to woodcock, Thin arrow points to Snipe, whose skull shape is definitely similar to that of the woodcock.
Figure 9. Mapped and reconstructed soldier head shapes positioned across a Termitidae phylogeny. Nodes a–g in Termite soldier defence strategies: a reassessment of Prestwich's classification and an examination of the evolution of defence morphology using extended eigenshape analyses of head morphology
Figure 9. Mapped and reconstructed soldier head shapes positioned across a Termitidae phylogeny. Nodes a–g are referred to in the text.
Figure 10 in Termite soldier defence strategies: a reassessment of Prestwich's classification and an examination of the evolution of defence morphology using extended eigenshape analyses of head morphology
Figure 10. The EES axes and values of morphometric variation that support a revised soldier defence classification. a, Planicapritermes; b, Dihoplotermes; c, Cavitermes; d, Termes.
Figure 4 in Termite soldier defence strategies: a reassessment of Prestwich's classification and an examination of the evolution of defence morphology using extended eigenshape analyses of head morphology
Figure 4. Outline data treatment for eigenshape analysis. Original outline described by 300 x,y points: S, start point; F, finish point; LM, landmark point. Converted to 250 equally spaced x,y coordinate points of the open outline. x,y plot of the f points with a 99% tolerance criterion to retain the outline between LM, S and F points.
Figure 2. x,y in Termite soldier defence strategies: a reassessment of Prestwich's classification and an examination of the evolution of defence morphology using extended eigenshape analyses of head morphology
Figure 2. x,y coordinate outline data are converted to a series of f (angular deviation) data points, which have been plotted. The position of the geometric landmark for extended eigenshape analysis is labelled.
Figure 1 in Termite soldier defence strategies: a reassessment of Prestwich's classification and an examination of the evolution of defence morphology using extended eigenshape analyses of head morphology
Figure 1. The soldier termite mechanical defensive mechanisms described by Prestwich (1984). Reprinted with permission, from the Annual Review of Entomology, Volume 29 © 1984 by Annual Reviews http://www.annualreviews.org
Figure 5. Head capsule EES plots. A, axis 2 in Termite soldier defence strategies: a reassessment of Prestwich's classification and an examination of the evolution of defence morphology using extended eigenshape analyses of head morphology
Figure 5. Head capsule EES plots. A, axis 2 vs. axis 1. B, axis 2 vs. axis 3. C, modelled mode of dorsal head capsule shape change along axes 1, 2 and 3.
Figure 3 in Termite soldier defence strategies: a reassessment of Prestwich's classification and an examination of the evolution of defence morphology using extended eigenshape analyses of head morphology
Figure 3. Soldier head features independently analysed; straight lines represent the size measurements: dots, landmark points; S, start point; F, finish point.
Fig. 7. SEM photos. A‒F. Head. A in Six new species of Zaischnopsis Ashmead (Hymenoptera: Chalcidoidea: Eupelmidae) from China based on morphological and molecular data
Fig. 7. SEM photos. A‒F. Head. A. Zaischnopsis covid Jiang & Peng sp. nov. B. Z. fuscolivida Tang & Peng sp. nov. C. Z. lii Jiang & Peng sp. nov. D. Z. pacis Jiang & Peng sp. nov. E. Z. campaniformis Tang & Peng sp. nov. F. Z. zhongi Jiang & Peng sp. nov. G. Z. covid, front part of frons, show sculpture and setae. H. Z. campaniformis, sculpture and setae around anterior ocellus. I. Z. lii, front part of frons, show sculpture and setae.
Data from: The temporal window of ecological adaptation in postglacial lakes: a comparison of head morphology, trophic position and habitat use in Norwegian threespine stickleback populations
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Figure 4 in Morphology and vocalization support specific status of the Chestnut-headed Chachalacaı Ortalis motmot ruficeps (Waglerı 1830) (Aves; Galliformes; Cracidae)
Figure 4. Distribution of O. motmot (blue and light blue) and of O. ruficeps (orange and red). Circles: measured specimens; triangles: vocalizations; diamonds: skins not measured; squares: photographs.
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