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1,925 results for “Platyhelminthes”
Fig. 5 in Three new Neotropical species and a new genus of land flatworms (Platyhelminthes, Geoplaninae)
Fig. 5. Obama apiguara. Oliveira, Almeida & Carbayo sp. nov. holotype (MZUSP PL2187). Diagrammatic representation of the copulatory apparatus from sagittal sections.
Figure 6 in Persica qeshmensis gen. nov. sp. nov from the Persian Gulf (Platyhelminthes: Polycladida: Acotylea), with remarks on reproductive structures
Figure 6. Persica qeshmensis. (A) Sagittal reconstruction of the female reproductive system; (B) microphotograph (sagittal section) of vagina and female gonopore; (C) microphotograph (sagittal sections) of vagina and oviduct; (D) microphotograph (sagittal section) of genital sucker and female reproductive system. Abbreviations: cg, cement glands; ega, eosinophilic glandular area; fp, female pore; gs, genital sucker; i, intestine; ml, muscular layer; ov, oviduct; v, vagina.
Figure 2 in Persica qeshmensis gen. nov. sp. nov from the Persian Gulf (Platyhelminthes: Polycladida: Acotylea), with remarks on reproductive structures
Figure 2. Persica qeshmensis (ZUTC Platy.1255): (A) dorsal view; (B) diagram of whole specimen; (C) dorsal view of cerebral region; (D) diagram of tentacular and cerebral eyes; (E) ventral view. Abbreviations: ce, cerebral eyes; cg, cement glands; fp, female pore; gs, genital sucker; m, mouth; mg, male gonopore; ph, pharynx; st, stylet; te, tentacular eyes; ut, uterus; vd, vas deferens.
FIGURE 2 in Cataloguing Prof. Eudóxia M. Froehlich's wet collection of land planarians (Platyhelminthes, Geoplanidae): a bounty of type specimens of 78 species
FIGURE 2. Detail of the catalogue (Table S1). Available upon request to the authors.
Data from: A large 28S rDNA-based phylogeny confirms the limitations of established morphological characters for classification of proteocephalidean tapeworms (Platyhelminthes, Cestoda)
Proteocephalidean tapeworms form a diverse group of parasites currently known from 315 valid species. Most of the diversity of adult proteocephalideans can be found in freshwater fishes (predominantly catfishes), a large proportion infects reptiles, but only a few infect amphibians, and a single species has been found to parasitize possums. Although they have a cosmopolitan distribution, a large proportion of taxa are exclusively found in South America. We analyzed the largest proteocephalidean cestode molecular dataset to date comprising more than 100 species (30 new), including representatives from 54 genera (80%) and all subfamilies, thus significantly improving upon previous works to develop a molecular phylogeny for the group. The Old World origin of proteocephalideans is confirmed, with their more recent expansion in South America. The earliest diverging lineages are composed of Acanthotaeniinae and Gangesiinae but most of the presently recognized subfamilies (and genera) appear not to be monophyletic; a deep systematic reorganization of the order is thus needed and the present subfamilial system should be abandoned. The main characters on which the classical systematics of the group has been built, such as scolex morphology or relative position of genital organs in relation to the longitudinal musculature, are of limited value, as demonstrated by the very weak support for morphologically-defined subfamilies. However, new characters, such as the pattern of uterus development, relative ovary size, and egg structure have been identified, which may be useful in defining phylogenetically well-supported subgroups. A strongly supported lineage infecting various snakes from a wide geographical distribution was found. Although several improvements over previous works regarding phylogenetic resolution and taxon coverage were achieved in this study, the major polytomy in our tree, composed largely of siluriform parasites from the Neotropics, remained unresolved and possibly reflects a rapid radiation. The genus Spasskyellina Freze, 1965 is resurrected for three species of Monticellia bearing spinitriches on the margins of their suckers.
FIGURE 2. Acirrostylus poncedeleoni n.g. n in Marine Rhabdocoela (Platyhelminthes, Rhabditophora) from Uruguay, with the description of eight new species and two new genera
FIGURE 2. Acirrostylus poncedeleoni n.g. n.sp. Reconstruction of the proboscis from the right side.
FIGURE 6. Microplana gadesensis. CRBA443-444 in Terrestrial planarians (Platyhelminthes, Tricladida, Terricola) from the Iberian Peninsula: new records and description of three new species
FIGURE 6. Microplana gadesensis. CRBA443-444. Sagittal section through the head.
FIGURE 9 in " Microturbellarian " flatworms (Platyhelminthes) from freshwater pools: New species and records from Israel
FIGURE 9: Strongylostoma elongatum elongatum Hofsten, 1907. Habitus; lightly squashed.
FIGURE 1 in A new Peruvian land planarian species of the genus Gigantea (Platyhelminthes, Tricladida, Geoplanidae)
FIGURE 1. Gigantea urubambensis sp. nov. Holotype. Photograph of live specimen in dorsal view.
FIGURE 1. Mesocoelium meggitti—USNPC 092800.00 in A reevaluation of specimens of Mesocoelium monas (Platyhelminthes: Digenea: Mesocoeliidae) from the Natural History Museum, UK and the United States National Parasite Collection, USA
FIGURE 1. Mesocoelium meggitti—USNPC 092800.00 from Anolis lionotus, ventral view of adult.
FIGURE 5. Mesocoelium burti—NHMUK 1980.11.12 4 in A reevaluation of specimens of Mesocoelium monas (Platyhelminthes: Digenea: Mesocoeliidae) from the Natural History Museum, UK and the United States National Parasite Collection, USA
FIGURE 5. Mesocoelium burti—NHMUK 1980.11.12 4 from Bufo marinus, ventral view of adult.
FIGURES 14–15 in Two new marine flatworms (Platyhelminthes: Rhabditophora: Proseriata) of the genus Otoplana Du Plessis, 1889 from the upper Tuscany sandy shores (Italy)
FIGURES 14–15. Spines of male sclerotic apparatus of Otoplana falcataspina sp. nov.
FIGURES 5–6 in Two new marine flatworms (Platyhelminthes: Rhabditophora: Proseriata) of the genus Otoplana Du Plessis, 1889 from the upper Tuscany sandy shores (Italy)
FIGURES 5–6. Spines of male sclerotic apparatus of Otoplana labronica sp. nov.
FIGURE 4. Transversotrema tragorum n in A complex of Transversotrematidae (Platyhelminthes: Digenea) associated with mullid fishes of the Indo-West Pacific Region, including the descriptions of four new species of Transversotrema
FIGURE 4. Transversotrema tragorum n. sp. ex Parupeneus indicus Lizard Island. GBR. Scale = 500 µm.
FIGURE 5 in A complex of Transversotrematidae (Platyhelminthes: Digenea) associated with mullid fishes of the Indo-West Pacific Region, including the descriptions of four new species of Transversotrema
FIGURE 5. Transversotrema sp. E ex Mulloidichthys vanicolensis Lizard Island GBR. Scale = 500 µm.
FIGURE 4. Gieysztoria guangdongensis Wang & Xia n in Two new species of Gieysztoria (Platyhelminthes, Rhabdocoela, Dalyelliidae) from a Freshwater Artificial Lake in Shenzhen, China
FIGURE 4. Gieysztoria guangdongensis Wang & Xia n. sp. Reconstruction of the sclerotic stylet.
FIGURE 1 in A new species of Supramontana Carbayo & Leal-Zanchet (Platyhelminthes, Continenticola, Geoplanidae) from the Interior Atlantic Forest
FIGURE 1. Supramontana argentina sp. nov. Photograph of a live specimen (holotype), in dorsal view.
FIGURE 1 in Three new species of freshwater Macrostomum (Platyhelminthes, Macrostomida) from southern China
FIGURE 1. The locations of three new species of Macrostomum in China
FIGURES 16–17 in Two new Otoplanid species (Platyhelminthes: Rhabditophora: Proseriata) of the genera Orthoplana Steinböck, 1932 and Postbursoplana Ax, 1956 from the Tuscan coast (Italy)
FIGURES 16–17. Spines of male sclerotic apparatus of Postbursoplana donoraticensis sp. nov.
FIGURE 11 in Two new Otoplanid species (Platyhelminthes: Rhabditophora: Proseriata) of the genera Orthoplana Steinböck, 1932 and Postbursoplana Ax, 1956 from the Tuscan coast (Italy)
FIGURE 11. Body form and organization of Postbursoplana donoraticensis sp. nov.
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