[Morphology of the hemocytes of "Rhynchosciara angelae" Nonato and Pavan, 1951 (Diptera, Mycetophilidae)].
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Foretarsal ventral surface observation of Japanese Papilio butterflies showed that the shapes of fifth foretarsi and numbers and localization of contact chemosensilla and spines in these areas are closely related to both phylogeny and behavior in these species. My results basically supported the classification that Japanese Papilio divides into five subgenera – Papilio (Princeps), P. machaon (P. xuthus and P. demoleus), Achillides (P. maackii and P. bianor), Menelaides (P. helenus, P. polytes, P. protenor and P. macilentus) and Iliades (P. memnon). Moreover, female foretarsal morphology also corresponded to the physical features of their preferring host plant leaves. The specificity of female P. machaon, female P. macilentus and female P. maackii seemed to also relate to the geographical diversities of these species and their hostplant, and their co-evolution.
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ABSTRACT With the assistance of my pupil, Mr. Fanning, of Exeter College, I have recently (December to March) prepared a large number of specimens of Amphioxus by means of transverse, oblique, horizontal, and vertical sections. The specimens were collected by me at Naples in 1871 and some 1874, were preserved in absolute alcohol simply, others had been previously treated with dilute picric acid (according to Kleinenberg’s plan), others had been first of all placed in H. Müller’s fluid. The dissection and slicing of these specimens was carried on in the histological laboratory of Exeter College, but I had also made some examination and drawings of Amphioxus in the living state when at Naples.
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The morphology of the foregut of the ectoparastic branchiuran Chonopeltis australis is described from serial transverse, longitudinal, and frontal sections of whole parasites and from SEM micrographs. The foregut is differentiated into four histomorphological regions: a preoral cavity, housed inside the proboscis and containing the tongue and mandibles; an ascending esophagus supplied with constrictor, longitudinal, and dilator muscles; a horizontal esophagus supplied with constrictor muscles only; and an esophageal funnel, containing cuticle-lined inner and recurrent walls, reminiscent of the cardia of muscoid flies. The mandibles apparently do not function as lacerating organs, but instead cram mucus and cellular detritus into the preoral cavity. Five dentigerous plates, guarding the oral aperture, function as a filter during feeding. The muscle complex in the walls of the ascending esophagus facilitates movement of aliment through the foregut into the anterior midgut. The comparative morphology and functional significance of each part of the foregut are discussed.
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JOURNAL ARTICLE| 01 October 1861 Translations: On the Morphology of the Copepoda C. CLAUS C. CLAUS Search for other works by this author on: This site PubMed Google Scholar Author and article information C. CLAUS Online Issn: 1477-9137 Print Issn: 0021-9533 Copyright © 1861 by the Company of Biologists Ltd.1861 J Cell Sci (1861) s2-1 (4): 285–300. https://doi.org/10.1242/jcs.s2-1.4.285 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Cite Icon Cite Search Site Citation C. CLAUS; Translations: On the Morphology of the Copepoda. J Cell Sci 1 October 1861; s2-1 (4): 285–300. doi: https://doi.org/10.1242/jcs.s2-1.4.285 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All contentAll journalsJournal of Cell Science Search Advanced Search This content is only available via PDF. Copyright © 1861 by the Company of Biologists Ltd.1861 Article PDF first page preview Close Modal You do not currently have access to this content.
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Journal Article Studies in the Comparative Morphology of the Algae: I. Heterotrichy and Juvenile Stages Get access F. E. FRITSCH F. E. FRITSCH Department of Botany, Queen Mary College, University of London Search for other works by this author on: Oxford Academic PubMed Google Scholar Annals of Botany, Volume 6, Issue 3, July 1942, Pages 397–412, https://doi.org/10.1093/oxfordjournals.aob.a088413 Published: 01 July 1942
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This study tested predictions regarding male mating preferences which were based on some aspects of female reproductive morphology which may influence sperm precedence patterns in six species of spiders. Males of two species, whose 'conduit' spermathecal design has been associated in previous stuthes with first male sperm precedence, showed the predicted preference for associating with immature females about to moult to maturity rather than mature females. Those of a third species, however, associated indiscriminately with mature and penultimate instar females. As predicted, males of three other species with 'cul-de-sac' spermathecal morphology did not associate preferentially with immature females. Immature females were avoided in two of the species, but not in the third. One of the species with cul-de-sac spermathecae showed, as predicted, lack of a strong first male advantage in sperm precedence. These data give only limited confirmation of the predictions.
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The gross morphology of the reservoir of the mesosomal gland of male large carpenter bees (tribe Xylocopini) was examined in 46 taxa (species and subspecies) in the three genera of the tribe. Males of all but six species of Xylocopa examined possess a cuticle-lined invagination that originates along the suture between the metanotum and propodeum. Size of the reservoir and arrangement of the tubules are consistent within subgenera (with a single exception) but variable among most subgenera. The morphological extremes range from a simple, short invagination that opens medially to a complex set of convoluted tubules that open from paired, laterally-positioned openings and extend forward to the metanotum or scutellum and posteriorly to the propodeal pit. Comparisons of mesosomal shapes between the sexes or between males in taxa with and without this reservoir reveal that structural changes of the posterior elements of the mesosoma are associated with the presence of the large reservoirs. In turn, reservoir size is predictive of male reproductive behaviour. The probable mode of gland function, the potential use and limitations of this structure as a phylogenetic character and the relationship of gland reservoir size to the diversity of mate-locating behaviours found in the Xylocopini are discussed.
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