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125 results for “proboscis”
Individual vocal identity is enhanced by the enlarged external nose in male proboscis monkeys (Nasalis larvatus)
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Data from: Biomechanical drivers of the evolution of butterflies and moths with a coilable proboscis
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Proboscis curling in a pollinator causes extensive pollen movement and loss
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Moth proboscis morphology material properties raw data
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Multivariate flower phenotype and proboscis length shape specialised pollination niches
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FIGURES 9–18 in First description of male worms of Enterobius Colobenterobius serratus Nematoda: Oxyuridae , the pinworm parasite of proboscis monkeys
FIGURES 9–18. Esophageal region of female pinworms. 9. Enterobius (Colobenterobius) serratus; 10. E. (C.) emodensis; 11. E. (C.) pygatrichus; 12. E. (Enterobius) macaci; 13. E. (E.) vermicularis; 14. E. (E.) anthropopitheci; 15. Trypanoxyuris (Buckleyenterobius) atelis; 16. T. (Trypanoxyuris) microon; 17. Lemuricola (Protenterobius) nycticebi; 18. L. (Madoxyuris) vauceli. Arrow indicates junction between light and dark portions. Scale bar: 100 µm.
FIGURES 19–22 in First description of male worms of Enterobius Colobenterobius serratus Nematoda: Oxyuridae , the pinworm parasite of proboscis monkeys
FIGURES 19–22. Cross section near caudal extremity of male (a) and enlarged view of the boxed part (b) showing spicular pouch. 19. Enterobius (Colobenterobius) serratus; 20. E. (C.) emodensis; 21. E. (Enterobius) vermicularis; 22. Lemuricola (Protenterobius) nycticebi. Thick arrows indicate dorso-ventral height of spicular pouch; thin arrows indicate dorso-ventral height of spicule.
FIGURES 1–8 in First description of male worms of Enterobius Colobenterobius serratus Nematoda: Oxyuridae , the pinworm parasite of proboscis monkeys
FIGURES 1–8. Male adult of Enterobius (Colobenterobius) serratus Hasegawa et al., 2003, collected from the feces of Nasalis larvatus in Sabah, Malaysia. 1. Entire worm, left lateral view; 2–4. Cephalic extremity, left lateral view (2), optical frontal section (3) and apical view (4); 5. Lateral ala in cross section through midbody; 6. Caudal extremity, left lateral view; 7. Spicular pouch, cross section; 8. Caudal papillae arrangement, ventral view. Abbreviations used: am. amphidial pore; an. anus; ce. cephalic expansion; co. corpus (of esophagus); cp. cephalic papilla; dl. dorsal lip; eb. esophageal bulb; ep. excretory pore; in. intestine; is. isthmus (of esophagus); la. lateral ala; mo. mouth; nr. nerve ring; pd. phasmidial duct; p1–p4. caudal papillae arrangement; ph. pharynx; sl. slot; sp. spicule; ss. specific structure (teeth) of pharynx; sv. seminal vesicle; svl. subventral lip; t. testis; vd. vas deferens.
Data from: Echinorhynchus salmonis Müller, 1784 (Acanthocephala: Echinorhynchidae) from the Bothnian Bay, Baltic Sea: morphological variability and radial asymmetry of proboscis hooks
Echinorhynchus salmonis is a common parasite of salmoniform and other fishes, occurring in fresh and brackish waters throughout the Holarctic. Presented here is the first analysis of the morphometric and meristic variation in a Palaearctic population of E. salmonis, collected from whitefish Coregonus lavaretus L. and smelt Osmerus eperlaus (L.) from the Bothnian Bay, northern Baltic Sea. Morphological data were compared with published descriptions of congeneric taxa. Nearctic populations of salmonid echinorhynchids considered by some to represent a distinct species, E. coregoni Linkins in Van Cleave, 1919, did not show any morphological divergence from Palaearctic populations, indicating that the name E. coregoni should be suppressed. Similarly, E. alpinus Linstow, 1901 has been considered to be a junior synonym of E. salmonis. However, E. alpinus should be regarded as a valid species, because it has a longer and more elongate body. The armature of the acanthocephalan proboscis typically displays radial symmetry. However, in E. salmonis the hooks on the dorsal surface of the proboscis are smaller than those on the ventral surface. Size differences between dorsal and ventral hooks are most pronounced at the base of the proboscis. The systematic and functional significance of radial asymmetry of proboscis hooks is discussed.
Data from: Proboscis profiler: a tool for detecting acanthocephalan morphotypes
Molecular studies conducted over the past 25 years have revealed previously unrecognised diversity in the phylum Acanthocephala. Several nominal species have been shown to represent complexes of morphologically cryptic biological species, a situation potentially confounding the analysis of ecological data. A software tool, 'Proboscis profiler', was developed to detect morphological heterogeneity in collections of superficially similar acanthocephalan worms based on the multivariate statistical analysis of proboscis hook dimensions. Proboscis profiler identifies objective, natural groups in a collection of acanthocephalans which may correspond to distinct biological species or populations. Initial trials demonstrate that Proboscis profiler can discriminate biological acanthocephalan species of the Echinorhynchus gadi Zoega in Müller, 1776 complex and differentiate between dorsal and ventral hook rows from the proboscis of E. salmonis Müller, 1784. Proboscis profiler is free software and can be downloaded from http://acanthocephala.sourceforge.net.
FIGURE 2. Pseudoscalibregma parvum. A. Habitus SEM photo, dorsal view. B. Habitus SEM photo, ventral view. C. Prostomium dorsal view. D. Anterior end with everted proboscis. E in Occurrence and distribution of Pseudoscalibregma and Scalibregma (Annelida, Scalibregmatidae) in the deep Nordic Seas, with the description of Scalibregma hanseni n. sp.
FIGURE 2. Pseudoscalibregma parvum. A. Habitus SEM photo, dorsal view. B. Habitus SEM photo, ventral view. C. Prostomium dorsal view. D. Anterior end with everted proboscis. E. Ventral view of pygidium. F. Chaetiger 1, right parapodium, anterior view. G. Chaetigers 13–16, dorsal view. H. Chaetigers 21–23, posterior view, showing neuropodial lobe and ventral cirri, left side. A–C, E–G specimen from close to type locality, Sta. OL-12, D, H specimens from west of the Bear Island, Sta. R405-59B, RP. Scale bars: A–B: 1 mm, C–H: 200 µm.
FIGURE 5. Male P. proboscis spec. nov., 18.V.2016 in New species of Protosticta Selys from Vietnam with a key to the males of the P. curiosa group (Odonata: Platystictidae)
FIGURE 5. Male P. proboscis spec. nov., 18.V.2016, Lam Dong Province, paratype before capture, same as in Fig. 4.
Additional data, Table 2. — Forewing and proboscis lengths (cm) in Xanthopan praedicta stat. nov. – first 35 lines: MNHN specimens. – lines 36 (Ranomena) to 43 (Lakato): RCPB. – lines 44 (Ranomafana) to 47 (Amber Mountain): CJHL. – line 55 (female from Ranomafana) and last five lines: NHMUK. – last 30 lines: individuals captured and released by DCL, except for the six NHMUK specimens. in A new taxonomic status for Darwin's "predicted" pollinator: Xanthopan praedicta stat. nov. (Lepidoptera Sphingidae Sphinginae)
Additional data, Table 2. — Forewing and proboscis lengths (cm) in Xanthopan praedicta stat. nov. – first 35 lines: MNHN specimens. – lines 36 (Ranomena) to 43 (Lakato): RCPB. – lines 44 (Ranomafana) to 47 (Amber Mountain): CJHL. – line 55 (female from Ranomafana) and last five lines: NHMUK. – last 30 lines: individuals captured and released by DCL, except for the six NHMUK specimens.
Additional data, Table 1. — Forewing and proboscis lengths (cm) in Xanthopan morganii. – last four specimens: CJHL (Rungwe, Hombo, and Convalescence) and RCPB (Tsoundzou). – all other specimens: MNHN. in A new taxonomic status for Darwin's "predicted" pollinator: Xanthopan praedicta stat. nov. (Lepidoptera Sphingidae Sphinginae)
Additional data, Table 1. — Forewing and proboscis lengths (cm) in Xanthopan morganii. – last four specimens: CJHL (Rungwe, Hombo, and Convalescence) and RCPB (Tsoundzou). – all other specimens: MNHN.
Data from: Cretaceous lophocoronids with short proboscis and retractable female genitalia provide the earliest evidence for their feeding and oviposition habits
<p>We describe two new species of Lophocoronidae: <em>Acanthocorona hedida</em> Zhang, Shih and Engel <strong>sp. n.</strong> and <em>Acanthocorona venulosa </em>Zhang, Shih and Engel <strong>sp. n.</strong>, and an undetermined specimen from mid-Cretaceous Kachin amber. Phylogenetic analysis of basal lepidopteran lineages, including three extinct families, was undertaken. The analysis supported monophyly of Glossata although internal relationships remain controversial. <em>Acanthocorona </em>and <em>Lophocorona </em>form a monophyletic group. It is likely that short and simply structured proboscides of <em>Acanthocorona </em>were used to sip water droplets, pollination drops from gymnosperms, nectar from early flowers, or sap from injured leaves. Both retracted and extended ovipositors are preserved in the material reported here, revealing their morphology and indicating that these Cretaceous lophocoronids inserted eggs into the tissues of their host plants.</p>
On following pages: 124. Black-shanked Douc (Pygathrix nigripes); 125. Tonkin Snub-nosed Monkey (Rhinopithecus (Rhinopithecus brelichi); 128. Golden Snub-nosed Monkey (Rhinopithecus roxellana); 129. Stryker's Snub-nosed Monkey avunculus); 126. Yunnan Snub-nosed Monkey (Rhinopithecus biet); 127. Guizhou Snub-nosed Monkey (Rhinopithecus strykeri); 130. Pig-tailed Langur (Simias concolor); 131. Proboscis Monkey (Nasalis larvatus). in Cercopithecidae
On following pages: 124. Black-shanked Douc (Pygathrix nigripes); 125. Tonkin Snub-nosed Monkey (Rhinopithecus (Rhinopithecus brelichi); 128. Golden Snub-nosed Monkey (Rhinopithecus roxellana); 129. Stryker's Snub-nosed Monkey avunculus); 126. Yunnan Snub-nosed Monkey (Rhinopithecus biet); 127. Guizhou Snub-nosed Monkey (Rhinopithecus strykeri); 130. Pig-tailed Langur (Simias concolor); 131. Proboscis Monkey (Nasalis larvatus).
Figure 10 in Proboscis sensory cells in Nemertea: comparative morphology and phylogenetic implications
Figure 10. Schematic representation of the monociliated sensory cells of the glandular proboscis epithelium in Nemertea based on the ultrastructure of the studied species. *inner microvilli in the case of receptor processes with a double ring of microvilli.
Figure 6 in Proboscis sensory cells in Nemertea: comparative morphology and phylogenetic implications
Figure 6. Transmission electron micrographs of proboscidial monociliated sensory cells of palaeonemertean species. A, Carinina yushini, longitudinal section through a group of sensory cells (asterisks). B, Carinina yushini, transverse section of the receptor process of a sensory cell. C, Carinina yushini, longitudinal section through the globular ciliary tip of a sensory cell. D, Carinina yushini, longitudinal section of a dendrite within the apicolateral junctions (black arrowheads) of a sensory cell. Bundles of microvillar filaments (white arrowheads) are terminated at the cytoplasmic membrane. E, Carinina yushini, transverse section of the proximal region of the dendrite of a sensory cell. Centrally located axial rootlets (asterisk) are surrounded by bundles of microvillar filaments (mf). F, Carinina yushini, transverse section of a distal region of the dendrite of a sensory cell. Arrowheads point to axial rootlets. G, Tubulanus punctatus, longitudinal section of a sensory cell with axial rootlets (white arrowheads). The filament bundles (black arrowheads) of the microvilli extending into the dendrite and terminating into the cytoplasmic membrane (back arrow) below apicolateral junctions
Figure 3 in Proboscis sensory cells in Nemertea: comparative morphology and phylogenetic implications
Figure 3. Confocal laser scanning micrographs of the everted (A, C, D) and inverted (B, E–L) proboscis. Red/white – phalloidin-positive (ph-p); green – acetylated α-tubulin-like immunoreactivity (tub-lir). Tub-lir has the strongest signals in the cilia and axons of sensory cells and in the basiepithelial nerve plexus. A, Hubrechtella juliae, substack of the transverse sections showing the receptor processes (black arrowheads) and axons (white arrowheads) of sensory cells. B, Cephalothrix cf. simula, substack of the longitudinal sections showing the receptor processes of small (black asterisks) and large (white arrowheads) sensory cells. C, Nipponomicrura uchidai, substack of the transverse sections showing sensory cells (arrowheads). D, N. uchidai, z-projection of the transverse sections showing the collars of sensory cells. E, Cephalothrix iwatai, substack of the longitudinal sections showing the collars of small (black arrowheads) and large (white arrowheads) sensory cells. F, Cephalothrix sp., substack of the longitudinal sections showing the collars of large sensory cells (arrowheads). G, Cephalothrix filiformis sensu Iwata, substack of the longitudinal sections showing the collars of the large
Figure 2 in Proboscis sensory cells in Nemertea: comparative morphology and phylogenetic implications
Figure 2. Light micrographs of the everted proboscis of live nemerteans. А, Cephalothrix simula, everted proboscis with bristles formed by the receptor processes of sensory cells. B, C. simula, the receptor process of a sensory cell. C, Cephalothrix sp., everted proboscis with bristles formed by the receptor processes of sensory cells. D, Kulikovia alborostrata, the apical surface of the proboscis epithelium showing pseudocnidae (white arrowheads) and monociliated sensory cells (black arrowheads).
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