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1,925 results for “Platyhelminthes”
FIGURES 14–15 in Two new sympatric troglobitic freshwater flatworms (Platyhelminthes: Dugesiidae) from a hotspot of subterranean biodiversity in the Neotropics
FIGURES 14–15. Girardia paucipunctata: (14) photograph of the preserved holotype in dorsal view; (15) photograph of preserved holotype in ventral view. Anterior to the left.
FIGURE 13 in Two new sympatric troglobitic freshwater flatworms (Platyhelminthes: Dugesiidae) from a hotspot of subterranean biodiversity in the Neotropics
FIGURE 13. Girardia arenicola. Sagittal composite reconstruction of the copulatory apparatus of the holotype. The arrow indicates the joining point of the ovovitelline ducts. Anterior to the left.
FIGURE 22 in Two new sympatric troglobitic freshwater flatworms (Platyhelminthes: Dugesiidae) from a hotspot of subterranean biodiversity in the Neotropics
FIGURE 22. Girardia paucipunctata. Sagittal composite reconstruction of the copulatory apparatus of the holotype. The arrow indicates the joining point of the ovovitelline ducts. Anterior to the left.
FIGURES 8–12 in Two new sympatric troglobitic freshwater flatworms (Platyhelminthes: Dugesiidae) from a hotspot of subterranean biodiversity in the Neotropics
FIGURES 8–12. Girardia arenicola, in sagittal section: (8) ventral surface of the body of the holotype; (9) testes of the holotype in the anterior region of the body; (10) lateral view of the male copulatory apparatus of the holotype, showing the distal section of a sperm duct close to its opening into the bulbar cavity; (11) copulatory bursa and proximal part of the bursal canal of paratype MZU PL. 00275; (12) general view of the copulatory apparatus of the holotype. Anterior to the left.
FIGURES 5–7 in Two new sympatric troglobitic freshwater flatworms (Platyhelminthes: Dugesiidae) from a hotspot of subterranean biodiversity in the Neotropics
FIGURES 5–7. Girardia arenicola: (5) photograph of a live specimen in dorsal view; (6) photograph of a preserved specimen (holotype) in dorsal view; (7) photograph of a preserved specimen (holotype) in ventral view. The tip of the pharynx is protruded (arrow) through the mouth. Scale bar for the fig. 5 not available. Anterior to the left.
FIGURES 1–4 in Two new sympatric troglobitic freshwater flatworms (Platyhelminthes: Dugesiidae) from a hotspot of subterranean biodiversity in the Neotropics
FIGURES 1–4. Type-locality of Girardia arenicola and Girardia paucipunctata in "Areias de Cima" cave, in the karst area of "Areias system", Iporanga, state of São Paulo, Brazil: (1) location of the cave in southern America (modified from Rodrigues et al., 2014); (2) location of the sampling site within the cave; (3) travertine rock pool from where flatworms were collected; (4) flatworms at the bottom of the travertine rock pool. The arrowhead indicates the cave entrance; arrows indicate the sampling site.
FIGURE 43 in Integrative approach reveals two new species of Obama (Platyhelminthes: Tricladida) from the South-Brazilian Atlantic Forest
FIGURE 43. Bayesian inference tree topology based on 653 bp of cytochrome c oxidase subunit I gene. The Bayesian phylogeny was constructed under the GTR+I+G substitution model. Numbers on nodes indicate posterior probabilities of the Bayesian method. Scale bar represents substitutions per nucleotide site. GenBank accession numbers are in parentheses.
FIGURE 42 in Integrative approach reveals two new species of Obama (Platyhelminthes: Tricladida) from the South-Brazilian Atlantic Forest
FIGURE 42. Phylogenetic tree inferred from maximum likelihood (GTR-GAMMA model), based on 653 bp of cytochrome c oxidase subunit I gene, performed by using RAxML. Specific values for those nodes that were weakly supported in the analyses (bootstrap support <70%) are not reported in the tree. Scale bar represents substitutions per nucleotide site. GenBank accession numbers are in parentheses, excepting accession numbers of the compressed specimens, which were indicated by an asterisk in this figure and detailed in Appendix S1.
FIGURES 39–41 in Integrative approach reveals two new species of Obama (Platyhelminthes: Tricladida) from the South-Brazilian Atlantic Forest
FIGURES 39–41. Obama tribalis sp. nov., microphotographs of the copulatory apparatus: (39) detail of prostatic vesicle of paratype MZU PL. 00288 in horizontal section; (40) detail of penis papilla and ejaculatory duct of paratype MZU PL. 00287 in sagittal section; (41) detail of female genital duct and common ovovitelline duct of paratype MZU PL. 00287 in sagittal section. Anterior tip to the left.
FIGURES 37–38 in Integrative approach reveals two new species of Obama (Platyhelminthes: Tricladida) from the South-Brazilian Atlantic Forest
FIGURES 37–38. Obama tribalis sp. nov., microphotographs of the copulatory apparatus: (37) paratype MZU PL. 00287 in sagittal section; (38) paratype MZU PL. 00288 in horizontal section. Anterior tip to the left.
FIGURES 35–36 in Integrative approach reveals two new species of Obama (Platyhelminthes: Tricladida) from the South-Brazilian Atlantic Forest
FIGURES 35–36. Obama tribalis sp. nov.: (35) sagittal composite reconstruction of copulatory apparatus of the holotype; (36) horizontal composite reconstruction of copulatory apparatus of paratype MZU PL. 00288. Anterior tip to the left.
FIGURES 27–34 in Integrative approach reveals two new species of Obama (Platyhelminthes: Tricladida) from the South-Brazilian Atlantic Forest
FIGURES 27–34. Obama tribalis sp. nov., microphotographs of transverse (27–32) and sagittal sections (33–34; anterior tip to the left): (27) anterior region of body and (28) detail of the anterior region of body of paratype MZU PL. 00287; (29) prepharyngeal region; (30) detail of body margin of pre-pharyngeal region; (31) detail of dorsal surface of pre-pharyngeal region and (32) detail of ventral surface of pre-pharyngeal region of the holotype; (33) pharynx and (34) ovary of paratype MZU PL. 00287.
FIGURES 16–17 in Integrative approach reveals two new species of Obama (Platyhelminthes: Tricladida) from the South-Brazilian Atlantic Forest
FIGURES 16–17. Obama allandra sp. nov., microphotographs of the copulatory apparatus: (16) holotype in sagittal section; (17) paratype MZU PL. 00283 in sagittal section. Anterior tip to the left. The arrow indicates the invagination of the dorsolateral wall of the male atrium receiving numerous openings from glands with mixed secretion.
FIGURES 18–20 in Integrative approach reveals two new species of Obama (Platyhelminthes: Tricladida) from the South-Brazilian Atlantic Forest
FIGURES 18–20. Obama allandra sp. nov., microphotographs of the copulatory apparatus in sagittal sections: (18) detail of male atrium of paratype MZU PL. 00283; (19) detail of penis papilla and ejaculatory duct of paratype MZU PL. 00283; (20) detail of penis papilla and ejaculatory duct of the holotype. Anterior tip to the left. The arrow indicates the invagination of the dorso-lateral wall of the male atrium receiving numerous openings from glands with mixed secretion.
FIGURES 14–15 in Integrative approach reveals two new species of Obama (Platyhelminthes: Tricladida) from the South-Brazilian Atlantic Forest
FIGURES 14–15. Obama allandra sp. nov., (14–15) sagittal composite reconstructions of copulatory apparatus of the holotype (14) and paratype MZU PL. 00284 (15). Anterior tip to the left. The arrow indicates the invagination of the dorsolateral wall of the male atrium receiving numerous openings from glands with mixed secretion.
FIGURES 6–13 in Integrative approach reveals two new species of Obama (Platyhelminthes: Tricladida) from the South-Brazilian Atlantic Forest
FIGURES 6–13. Obama allandra sp. nov., holotype, microphotographs of transverse (6–11) and sagittal sections (12–13; anterior tip to the left): (6) anterior region of body; (7) detail of anterior region of body; (8) pre-pharyngeal region; (9) detail of body margin of pre-pharyngeal region; (10) detail of dorsal surface of pre-pharyngeal region; (11) detail of ventral surface of pre-pharyngeal region; (12) pharynx; (13) ovary. The ovary is shown in a parasagittal section in order to show the ovovitelline duct opening.
FIGURES 2–5 in Integrative approach reveals two new species of Obama (Platyhelminthes: Tricladida) from the South-Brazilian Atlantic Forest
FIGURES 2–5. Obama allandra sp. nov., holotype: (2) dorsal pattern of pigmentation; (3) eye pattern; detail of eye pattern and pattern of pigmentation at anterior body region (4) and median third of the body (5). Anterior tip to the left.
FIGURES 22–26 in Integrative approach reveals two new species of Obama (Platyhelminthes: Tricladida) from the South-Brazilian Atlantic Forest
FIGURES 22–26. Obama tribalis sp. nov.: (22) dorsal pattern of pigmentation of paratype MZU PL. 00287; (23) dorsal pattern of pigmentation of the holotype; (24) eye pattern of the holotype; detail of eye pattern and pattern of pigmentation at anterior region (25) and median third (26) of body of paratype MZU PL. 00287. Anterior tip to the left.
FIGURE 21 in Integrative approach reveals two new species of Obama (Platyhelminthes: Tricladida) from the South-Brazilian Atlantic Forest
FIGURE 21. Obama tribalis sp. nov., paratype MZU PL. 00288: photograph in dorsal view. Anterior tip to the left.
Figure 26 in 'Endless forms most beautiful': taxonomic revision of the planarian Geoplana vaginuloides (Darwin, 1844) and discovery of numerous congeners (Platyhelminthes: Tricladida)
Figure 26. Geoplana boraceia Almeida & Carbayo sp. nov. Sagittal views. A, diagrammatic representation of the copulatory apparatus of specimen MZUSP PL 2070. B, photomicrograph of a sagittal section of the penis bulb of specimen MZUSP PL 2070. C, photomicrograph of dorsal epithelium of penis papilla and cyanophil glands located immediately beneath epithelium of specimen MZUSP PL 2077. D, photomicrograph of posterior portion of female atrium and female genital duct of specimen MZUSP PL 2070.
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