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44 results for “freshwater flatworms”
FIGURES 1–5 in Two new species of freshwater flatworms (Platyhelminthes: Tricladida: Continenticola) from South American caves
FIGURES 1–5. Sampling areas of Girardia desiderensis and Girardia pierremartini in the karst areas of São Desidério, Bahia state, and Presidente Olegário, Minas Gerais state, Brazil: (1) location of the studied areas; (2) outcrops of Baixa Fria cave, São Desidério karst area (Photograph: J. E. Gallão); (3) sampling site of G. desiderensis in the aphotic zone of Baixa Fria cave, São Desidério karst area (Photograph: J. E. Gallão); (4) sampling location of G. pierremartini in the photic zone of Lapa da Fazenda São Bernardo cave, Presidente Olegário karst area (Photograph: Ericson C. Igual); (5) sampling site of G. pierremartini in the twilight zone of Toca do Charco cave, Presidente Olegário karst area (Photograph: Tamires Zepon).
FIGURES 16–21 in Two new sympatric troglobitic freshwater flatworms (Platyhelminthes: Dugesiidae) from a hotspot of subterranean biodiversity in the Neotropics
FIGURES 16–21. Girardia paucipunctata, holotype in sagittal section: (16) dorsal surface of the body; (17) testes in the anterior region of the body; (18–20) general view of the copulatory apparatus; (21) copulatory bursa and proximal part of the bursal canal. Anterior to the left.
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 4 from: Lenis C, Ruiz F, Muskus C, Marcilla A, Vélez I (2020) A new flatworm species of Temnocephala (Rhabdocoela, Temnocephalidae) ectosymbiont on the freshwater crab Valdivia serrata (Decapoda, Trichodactylidae) from Amazonas, Colombia. ZooKeys 918: 1-14. https://doi.org/10.3897/zookeys.918.38201
Figure 4 Details of the reproductive system of Temnocephala ivandarioi sp. nov. A, B partial female reproductive system, showing: anterior portion of the distal vaginal sphincter (advs), anterior portion of the proximal vaginal sphincter (apvs), distal vaginal sphincter (dvs), genital atrium (ga), posterior portion of the distal vaginal sphincter (pdvs), posterior portion of the proximal vaginal sphincter (ppvs), proximal vaginal sphincter (pvs), ovary (ov), vagina (va), and vesicula resorbens (vr) C, D partial male reproductive system, showing: cirrus (c), prostatic bulb (pb), seminal vesicle duct (svd), seminal vesicle (sv), and vasa deferentia (vd) E, F cirrus introvert observed in different focusing planes, view of the circle of sclerites (sp) in the distal portion of the introvert and the smooth portion (smp) in the proximal limit of the introvert (pli). Scale bars: 50 μm (A–D); 20 μm (E, F).
Figure 3 from: Lenis C, Ruiz F, Muskus C, Marcilla A, Vélez I (2020) A new flatworm species of Temnocephala (Rhabdocoela, Temnocephalidae) ectosymbiont on the freshwater crab Valdivia serrata (Decapoda, Trichodactylidae) from Amazonas, Colombia. ZooKeys 918: 1-14. https://doi.org/10.3897/zookeys.918.38201
Figure 3 Temnocephala ivandarioi sp. nov. details of epidermal excretory syncytial plates (DLSPs) and eggs A antero-lateral area observed with SEM showing leftmost tentacle and left DLSP, arrow showing contour and position of excretory pores (n) B line drawing of entire specimen showing the DLSPsC egg observed with SEM showing the filament (fi), peduncle (pe), and plane of fracture of the operculum (pf) D line drawing of a whole egg showing the oblique fracture plane to the longitudinal axis of the egg E live adult specimen showing red eyespot pigment F unhatched egg showing the filament (fi) G, H live eggs deposited on branchial chambers of V. serrata. Scale bars: 100 μm (A–F); 1mm (G, H).
Figure 6 from: Lenis C, Ruiz F, Muskus C, Marcilla A, Vélez I (2020) A new flatworm species of Temnocephala (Rhabdocoela, Temnocephalidae) ectosymbiont on the freshwater crab Valdivia serrata (Decapoda, Trichodactylidae) from Amazonas, Colombia. ZooKeys 918: 1-14. https://doi.org/10.3897/zookeys.918.38201
Figure 6 Diagrams of the cirrus of the species of Temnocephala associated with trichodactylid crabs. Terminology based on the cirrus structure (see comparative notes and Fig. 5). ATemnocephala ivandarioi sp. nov. (present study) BTemnocephala lanei Pereira & Cuocolo, 1941 CTemnocephala longivaginata Seixas, Amato & Amato, 2011 DTemnocephala lutzi Monticelli, 1913 (Amato et al. 2005) ETemnocephala microdactyla Monticelli, 1903 FTemnocephala pignalberiae Dioni, 1967 (Amato et al. 2010) GTemnocephala santafesina Dioni, 1967 HTemnocephala trapeziformis Amato, Amato & Seixas, 2006 ITemnocephala travassosfilhoi Pereira & Cuocolo, 1941. Key: Shaft [shape: CO–cone; FU–funnel]; [curvature: CU–curved up; ST–straight; CD–curved down]. Introvert [shape: CY–cylindrical; CO–cone; SC–scoop]; [armed with: UN–unarmed; SP–spines; SL–sclerites; RI–ridges; ND–not described]; [angle: NO–not oblique; VO–very oblique]; [curvature: NC–not curved; FC–forward curved; BC–backward curved].
Figure 5 from: Lenis C, Ruiz F, Muskus C, Marcilla A, Vélez I (2020) A new flatworm species of Temnocephala (Rhabdocoela, Temnocephalidae) ectosymbiont on the freshwater crab Valdivia serrata (Decapoda, Trichodactylidae) from Amazonas, Colombia. ZooKeys 918: 1-14. https://doi.org/10.3897/zookeys.918.38201
Figure 5 Diagrams showing the terminology used to describe the cirrus of the species of Temnocephala (terminology updated from Sewell et al. (2007), Seixas et al. (2011), Garcés et al. (2013), and Ponce de León et al. (2015); diagrams modified from Sewell et al. 2007: 205, fig. 2).
Figure 1 from: Lenis C, Ruiz F, Muskus C, Marcilla A, Vélez I (2020) A new flatworm species of Temnocephala (Rhabdocoela, Temnocephalidae) ectosymbiont on the freshwater crab Valdivia serrata (Decapoda, Trichodactylidae) from Amazonas, Colombia. ZooKeys 918: 1-14. https://doi.org/10.3897/zookeys.918.38201
Figure 1 Temnocephala ivandarioi sp. nov. and Valdivia serrataA paratype of Temnocephala ivandarioi sp. nov. showing an egg, ventral view B adult paratype stained in Meyer´s paracarmine C holotype stained in Borax carmine D male specimen of V. serrataE abdomen F gonopods, lateral view. Scale bars: 200 µm (A–C); 10 mm (D–F).
Figure 2 from: Lenis C, Ruiz F, Muskus C, Marcilla A, Vélez I (2020) A new flatworm species of Temnocephala (Rhabdocoela, Temnocephalidae) ectosymbiont on the freshwater crab Valdivia serrata (Decapoda, Trichodactylidae) from Amazonas, Colombia. ZooKeys 918: 1-14. https://doi.org/10.3897/zookeys.918.38201
Figure 2 Temnocephala ivandarioi sp. nov. A adult specimen diagram, showing adhesive disk (ad), anterior testes (at), cyanophilous glands (cg), disk glands (dg), excretory vesicle (ev), Haswell´s glands (hg), intestinal sac (i), mouth (m), pharynx (ph), posterior testes (pt), rhabditogenic glands (rg), tentacles (t), and vitellarium (v) B reproductive system, showing female reproductive complex: anterior portion of the distal vaginal sphincter (advs), anterior portion of the proximal vaginal sphincter (apvs), genital atrium (ga), genital pore (gp), posterior portion of the distal vaginal sphincter (pdvs), posterior portion of the proximal vaginal sphincter (ppvs), ovary (ov), vagina (va), and resorbens vesicle (vr); and male reproductive organs: cirrus (c), prostatic bulb (pb), prostatic vesicle (pv), seminal vesicle (sv), and vasa deferentia (vd) C line drawing of cirrus in different focusing planes, showing the sclerites portion of the introvert (sp), and proximal limit of the introvert (arrows). Scale bars: 200 µm (A); 100 µm (B); 20 μm (C).
Fig. 4 in A new species of freshwater flatworm (Platyhelminthes, Tricladida, Dendrocoelidae) inhabiting a chemoautotrophic groundwater ecosystem in Romania
Fig. 4. Dendrocoelum obstinatum Stocchino & Sluys, sp. nov., holotype (ZMA V.Pl. 7264.1). A. Microphotograph of the copulatory apparatus. B. Microphotograph of the anterior adhesive organ with the associated ventral muscles. C. Microphotograph of the cervix-like protrusion of the male atrium, with the opening of the common oviduct.
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.
Figures 4-6 from: de Souza ST, Morais ALM, Cordeiro LM, Leal-Zanchet AM (2015) The first troglobitic species of freshwater flatworm of the suborder Continenticola (Platyhelminthes) from South America. ZooKeys 470: 1-16. https://doi.org/10.3897/zookeys.470.8728
Figures 4-6 - Girardia multidiverticulata: 4 photograph of a live specimen in ventral view soon after sampling 5 photograph of a live specimen, in ventral view, fed at the laboratory 6 photograph of a preserved specimen in ventral view. The tip of the pharynx is protruded (arrow) through the mouth. Scale bar for the Fig. 4 not available.
Figures 7-10 from: de Souza ST, Morais ALM, Cordeiro LM, Leal-Zanchet AM (2015) The first troglobitic species of freshwater flatworm of the suborder Continenticola (Platyhelminthes) from South America. ZooKeys 470: 1-16. https://doi.org/10.3897/zookeys.470.8728
Figures 7-10 - Girardia multidiverticulata, holotype in sagittal section: 7–8 dorsal and ventral surfaces of the body, respectively 9–10 anterior and posterior tips of the body, respectively.
Figures 1-3 from: de Souza ST, Morais ALM, Cordeiro LM, Leal-Zanchet AM (2015) The first troglobitic species of freshwater flatworm of the suborder Continenticola (Platyhelminthes) from South America. ZooKeys 470: 1-16. https://doi.org/10.3897/zookeys.470.8728
Figures 1-3 - Type-locality of Girardia multidiverticulata: 1 location of the "Buraco do Bicho" cave, in Bodoquena Plateau, Mato Grosso do Sul, Brazil, showing the range of limestone outcrops and the adjacent "Serra da Bodoquena" National Park 2 schematical drawing of the "Buraco do Bicho" cave from where the flatworms were sampled 3 cave entrance (arrow).
Figure 14 from: de Souza ST, Morais ALM, Cordeiro LM, Leal-Zanchet AM (2015) The first troglobitic species of freshwater flatworm of the suborder Continenticola (Platyhelminthes) from South America. ZooKeys 470: 1-16. https://doi.org/10.3897/zookeys.470.8728
Figure 14 - Girardia multidiverticulata: sagittal composite reconstruction of the copulatory apparatus of the holotype.
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