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1,925 results for “Platyhelminthes”
FIGURES 41 in Two new land planarian species (Platyhelminthes: Tricladida) from the Cerrado biome in southwestern Brazil
FIGURES 41. Pasipha liviae Marques & Leal-Zanchet, sp. nov., holotype, sagittal composite reconstruction of the copulatory apparatus. Anterior tip to the left.
FIGURES 42–44 in Two new land planarian species (Platyhelminthes: Tricladida) from the Cerrado biome in southwestern Brazil
FIGURES 42–44. Pasipha liviae Marques & Leal-Zanchet, sp. nov., holotype, microphotographs of the copulatory apparatus in sagittal sections: (42) general view; (43) prostatic vesicle; (44) female organs. Anterior tip to the left.
FIGURES 34–38 in Two new land planarian species (Platyhelminthes: Tricladida) from the Cerrado biome in southwestern Brazil
FIGURES 34–38. Pasipha liviae Marques & Leal-Zanchet, sp. nov., holotype, microphotographs of transverse sections: (34– 35) cephalic region of body; (36–38) pre-pharyngeal region.
FIGURES 31–33 in Two new land planarian species (Platyhelminthes: Tricladida) from the Cerrado biome in southwestern Brazil
FIGURES 31–33. Pasipha liviae Marques & Leal-Zanchet, sp. nov., preserved type-specimens: (31–33) photographs in dorsal (31) and ventral (32) views of paratype MZU PL. 00324; (33) schematic drawing of the eye pattern of the holotype, all dots representing eyes. Anterior tip to the left.
FIGURES 28–30 in Two new land planarian species (Platyhelminthes: Tricladida) from the Cerrado biome in southwestern Brazil
FIGURES 28–30. Pasipha liviae Marques & Leal-Zanchet, sp. nov., photographs of live specimens in dorsal view: (28) holotype; (29) paratype MZU PL. 00322; (30) paratype MZU PL. 00323. The arrow indicates the ventral surface, which is partially visible in (30). Anterior tip to the left. Bars: 5 mm.
FIGURE 2. 28S in Twofold or threefold complication: Phrikoceros or Tytthosoceros (Platyhelminthes Pseudocerotidae) in South America? Short integrative revision of both genera
FIGURE 2. 28S rDNA ML phylogeny of available sequences of Tytthosoceros and related species. Stars relate to types of tentacles of Figure 1.
FIGURE 1 in Twofold or threefold complication: Phrikoceros or Tytthosoceros (Platyhelminthes Pseudocerotidae) in South America? Short integrative revision of both genera
FIGURE 1. Comparison among Tytthosoceros, Phrikoceros and Pseudoceros. A–C. external morphology, type of pharynx and of pseudotentacles in (A) Tytthosoceros, (B) Phrikoceros, (C) Pseudoceros, the original genus of T. mopsus (Marcus 1952). D–E. T. mopsus' pseudotentacles dorsal and ventro-lateral view, respectively. ce: cerebral eyespots, fg: female gonopore, mg: male gonopore, pe: pseudotentacular eyespots, ph: pharynx, pt:pseudotentacles, su: sucker.
FIGURE 6 in New species of Temnocephala (Platyhelminthes, Temnocephalidae) ectosymbiont on decapod crustaceans Aegla jarai (Aeglidae) from Brazil and Samastacus spinifrons (Parastacidae) from Chile
FIGURE 6. Photomicrographs of cirri of Temnocephala catarinensis sp. nov. from Samastacus spinifrons, seen with Nomarski's DIC microscopy. A. Entire cirrus (lateral view), showing the evident curvature. B. Entire cirrus (dorsal or ventral view), showing that the curvature is less evident when the cirrus is in this position and the proximal limit of the introvert (head arrow). Scale bars: 25 μm. C–H. Introvert seen in different focusing planes, showing the proximal limit of the introvert (arrow), scale bars: 10 μm.
FIGURE 3 in New species of Temnocephala (Platyhelminthes, Temnocephalidae) ectosymbiont on decapod crustaceans Aegla jarai (Aeglidae) from Brazil and Samastacus spinifrons (Parastacidae) from Chile
FIGURE 3. Line drawings of holotype of Temnocephala catarinensis sp. nov. from Aegla jarai. A. Adult specimen, ventral view, scale bar: 250 μm. B. Cirrus showing the proximal limit of the introvert (arrow), scale bar: 20μm. C. Partial line drawings of the male reproductive system. D. Partial line drawings of the female reproductive system. Scale bars: 50 μm. (adhesive disc (ad), anterior testes (at), anterior portion of the vaginal sphincter (avs), cirrus (c), deferent vessels (dd), excretory vesicle (ev), genital atrium (ga), genital pore (gp), Haswell glands (hg), intestine (i), mouth (m), ovary (ov), paranephrocytes (pa), prostatic bulb (pb), prostatic cells (pc), pharynx (ph), prostatic secretions (ps), posterior testis (pt), posterior portion of the vaginal sphincter (pvs), seminal vesicle (sv), tentacles (t), vagina (va), vitelline duct (vd), vitelline glands (vg), vesicula intermedia (vi), vesicula resorbens (vr)).
FIGURE 1. Aegla jarai A in New species of Temnocephala (Platyhelminthes, Temnocephalidae) ectosymbiont on decapod crustaceans Aegla jarai (Aeglidae) from Brazil and Samastacus spinifrons (Parastacidae) from Chile
FIGURE 1. Aegla jarai A. Merus part of the cheliped showing unhatched (black head arrow) and hatched eggs (white head arrows) of Temnocephala catarinensis sp. nov. Scale bar: 1 mm. B. Posterior portion of the left side of the body showing posterior limit of the rhabditogenic glands (black head arrows) and the posterior limit of the disc glands (white head arrows) of Temnocephala catarinensis sp. nov., Scale bar: 250 μm. C. Ventral view of adult specimens of Temnocephala catarinensis sp. nov. from Aegla jarai. Scale bar: 250 μm.
FIGURE 2 in New species of Temnocephala (Platyhelminthes, Temnocephalidae) ectosymbiont on decapod crustaceans Aegla jarai (Aeglidae) from Brazil and Samastacus spinifrons (Parastacidae) from Chile
FIGURE 2. Dorsal view of Temnocephala catarinensis sp. nov. observed with SEM, showing details of the epidermal 'excretory' syncytial plates (EPs). A. Specimen from Aegla jarai showing right EP and nephridiopore (n). B. Specimen from Samastacus spinifrons showing EPs and nephridiopores (n). C. Detail of the right EP from Samastacus spinifrons showing its limits and nephridiopore (n). Scale bars: 100 μm.
FIGURE 4 in New species of Temnocephala (Platyhelminthes, Temnocephalidae) ectosymbiont on decapod crustaceans Aegla jarai (Aeglidae) from Brazil and Samastacus spinifrons (Parastacidae) from Chile
FIGURE 4. Partial reproductive system of an adult specimen of Temnocephala catarinensis sp. nov. from Aegla jarai. A. Partial female and male reproductive system B. Partial female reproductive system C. Partial male reproductive system. Scale bars: 50 μm. (anterior portion of the vaginal sphincter (avs), cirrus (c), genital atrium (ga), genital pore (gp), ovary (ov), prostatic bulb (pb), posterior portion of the vaginal sphincter (pvs), seminal vesicle (sv), vagina (va), vesicula intermedia (vi), vesicula resorbens (vr)).
Figure 2. Bayesian inference tree inferred from Dataset2 in First molecular phylogeny of the freshwater planarian genus Girardia (Platyhelminthes: Tricladida) unveils hidden taxonomic diversity and initiates resolution of its historical biogeography
Figure 2. Bayesian inference tree inferred from Dataset2 (COI with outgroup). Clades C to R have been collapsed for the sake of clarity. Clade A comprises unclassified samples from Mexico and Texas (USA); Clade B includes identified individuals of Girardia schubarti from Brazil and other unidentified Brazilian individuals. The outgroup (unlabelled lower clade) is composed of several representatives of genera Dugesia and Schmidtea downloaded from GenBank (Appendix). Values at nodes correspond to posterior probability. Scale bar: number of substitutions per nucleotide position.
Figure 1 in First molecular phylogeny of the freshwater planarian genus Girardia (Platyhelminthes: Tricladida) unveils hidden taxonomic diversity and initiates resolution of its historical biogeography
Figure 1. Maps showing the sampling localities for all individuals analysed in the present study, including those corresponding to GenBank sequences. A to R letters in the legend refer to the clades and singletons delimited in the phylogenetic analyses (Figs 2, 3). A, the Americas; B, Western Europe; C, Hawaii; D, Asia and Oceania. For a finer resolution, visit the interactive map at: https://www.ub.edu/planarian-maps/.
FIGURE 3 in Monogenea on exotic Indian freshwater fish. 5. First report of pathogenic Gussevia asota (Platyhelminths) from Oscar Astronotus ocellatus (Agassiz 1831) (Perciformes: Cichlidae)
FIGURE 3. Phylogenetic tree inferred from ML method based on partial 28S rDNA gene sequences of Gussevia asota Kritsky et al., 1989. Numbers preceding the taxa are GenBank accession numbers for their 28s rRNA gene sequences. Bootstrap values (1000 replicates) are shown above nodes. Quadriacanthus bagrae and Thaparocleidus siluri were used as the outgroups. The taxon denoted by a black dot corresponds to the sequence generated in this study.
FIGURE 1 in Monogenea on exotic Indian freshwater fish. 5. First report of pathogenic Gussevia asota (Platyhelminths) from Oscar Astronotus ocellatus (Agassiz 1831) (Perciformes: Cichlidae)
FIGURE 1. Line drawings of sclerotised parts of Gussevia asota Kritsky et al., 1989 from Astronauts ocellatus (Agassiz 1831). A. Dorsal anchor. B. Ventral anchor. C. Hook pair 5. D. Hook pairs 1–4, 6, 7. E. Dorsal bar. F. Ventral bar. G. Vagina. H and I. Male copulatory organ (different configurations) with a prostatic reservoir and a seminal vesicle. Scale bar = 30 μm.
FIGURE 2 in Monogenea on exotic Indian freshwater fish. 5. First report of pathogenic Gussevia asota (Platyhelminths) from Oscar Astronotus ocellatus (Agassiz 1831) (Perciformes: Cichlidae)
FIGURE 2. Phase contrast, DIC, and light microscopy images of sclerotised parts of Gussevia asota Kritsky et al., 1989 from Astronotus ocellatus (Agassiz 1831). A. Haptoral anchor/bar complex and hooks. B. Male copulatory organ. C and D. Vagina. E. Hook pairs 1–4, 6, 7. F. Haptoral lobes. Scale bar: A, B, C, D, F=20 μm; E=10 μm.
Figure 7 in A new species of land planarian (Platyhelminthes: Tricladida: Geoplanidae) from the Amazonian lowlands, Peru
Figure 7. Details of the male organs of the copulatory apparatus of Notogynaphallia urku sp. nov. in sagittal sections of the holotype (A, D, E, G, H) and paratype 1 (B, C, F). (A, B) Prostatic vesicle and proximal part of the male atrium; (C, D) proximal portion of the prostatic vesicle; (E, F) distal portion of the prostatic vesicle; (G, H) male atrium. Scale bars: A–C = 500 μm; D–H = 100 μm.
Figure 8 in A new species of land planarian (Platyhelminthes: Tricladida: Geoplanidae) from the Amazonian lowlands, Peru
Figure 8. Details of the female organs of the copulatory apparatus of Notogynaphallia urku sp. nov. in longitudinal (A) and sagittal (B–F) sections. (A, C – E) holotype; (B, F) paratype 1). (A, B) ovaries; (C, D) ovovitelline ducts: lateral to the female atrium (C) and distal ascending portion (D); (E, F) distal portion of the female reproductive system. Scale bars: A, C–F = 100 μm; B = 200 μm.
Figure 4 in A new species of land planarian (Platyhelminthes: Tricladida: Geoplanidae) from the Amazonian lowlands, Peru
Figure 4. Pharynx of Notogynaphallia urku sp. nov. Sagittal sections of the holotype (A) and paratype 1 (B). Scale bars: 1 mm.
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Allen Brain Atlas
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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
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