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1,925 results for “Platyhelminthes”
FIGURES 34–37. Temnocephala pignalberiae. 34 in Temnocephala pignalberiae Dioni, 1967 (Platyhelminthes, Temnocephalida) from two allopatric populations of Dilocarcinus pagei Stimpson, 1861 (Crustacea, Decapoda) — first record for Brazil
FIGURES 34–37. Temnocephala pignalberiae. 34. adult specimen pressed between slide and cover slip, showing that too much pressure may be good to allow all characters to be observed in the same focusing plane, but alters the body shape. Scale bar = 1 mm. 35. Haswell glands (black head arrows). Scale bar = 200 µm. 36. mouth (m), mouth sphincter (ms), and pharyngeal sphincter (ps). Scale bar = 200 µm. 37. male and female reproductive system: anterior portion of the vaginal sphincter (avs), cirrus (c), deferent duct (dd), ejaculatory duct (ed), genital pore (gp), genital atrium (ga), ovary (ov), posterior portion of the vaginal sphincter (pvs), prostatic bulb (pb), seminal receptacles (sr), seminal vesicle (sv), vagina (va), and vesicula resorbens (vr). Scale bar = 100 µm.
FIGURES 8–13. Temnocephala pignalberiae. 8–9 in Temnocephala pignalberiae Dioni, 1967 (Platyhelminthes, Temnocephalida) from two allopatric populations of Dilocarcinus pagei Stimpson, 1861 (Crustacea, Decapoda) — first record for Brazil
FIGURES 8–13. Temnocephala pignalberiae. 8–9. specimens from Poconé fixed in hot formalin showing the typical body shape and the red-eyes (black head arrow). 10–11. specimens from Bebedouro fixed in hot formalin showing the typical body shape and the red-eyes (black head arrow). Same scale bar to Figs. 8-11 = 500 µm. 12. carapace of crab killed with cold ethanol showing the specimens and many eggs cemented to the tissue which covers the inner upper surface of the carapace. Scale bar = 2 mm. 13. specimens killed with cold ethanol, together with the host, showing the altered body shape. Scale bar = 2 mm.
FIGURE 8 in Dalytyphloplanida (Platyhelminthes: Rhabdocoela) from Andalusia, Spain, with the description of four new species
FIGURE 8. Microdalyellia armigera (Schmidt, 1861) Gieysztor, 1938a (A) Stylet. Gieysztoria cuspidata (Schmidt, 1861) Ruebush & Hayes, 1939 (B) Stylet (arrows indicate digitiform protuberances). Gieysztoria macrovariata (Weise, 1942) Ruebush & Hayes, 1939 (C) Stylet. Gieysztoria beltrani (Gieysztor, 1931) Ruebush & Hayes, 1939 (D) Stylet.
FIGURE 1 in Dalytyphloplanida (Platyhelminthes: Rhabdocoela) from Andalusia, Spain, with the description of four new species
FIGURE 1. Parapharyngiella involucrum Willems et al., 2005 (A) Habitus from a live animal. (B) Bursal canal. (C) Stylet. (D) Bursal appendage.
FIGURE 2 in Dalytyphloplanida (Platyhelminthes: Rhabdocoela) from Andalusia, Spain, with the description of four new species
FIGURE 2. Trigonostomum penicillatum (Schmidt, 1857) Micoletzky, 1910 (A) Stylet from the whole mount. (B) Bursal appendage from a live animal. Promesostoma maculosum Ax, 1956 (C) Stylet and copulatory organ from a live animal. Kytorhynchidarum sp. (D) Head region. Phaenocora sp.? Ehrenberg, 1836 (E) Live animal. Strongylostoma elongatum Hofsten, 1907 (F) Copulatory organ from a live animal.
FIGURE 7 in Dalytyphloplanida (Platyhelminthes: Rhabdocoela) from Andalusia, Spain, with the description of four new species
FIGURE 7. Olisthanella truncula (Schmidt, 1858) Voigt, 1892 (A) Live animal. (B) Atrial organs. (C) Reconstruction of the atrial organs from the right hand side.
FIGURE 9. Gieysztoria iberica n in Dalytyphloplanida (Platyhelminthes: Rhabdocoela) from Andalusia, Spain, with the description of four new species
FIGURE 9. Gieysztoria iberica n. sp. (A) Habitus from a live animal. (B–C) Stylet from the holotype.
FIGURE 6. Strongylostoma devleeschouweri n in Dalytyphloplanida (Platyhelminthes: Rhabdocoela) from Andalusia, Spain, with the description of four new species
FIGURE 6. Strongylostoma devleeschouweri n. sp. (A) Live animal from Laguna de Santa Olalla with the conspicuous greenspotted colouration. (B) Reconstruction of the atrial organs from the right hand side based on specimens from Laguna de Santa Olalla.
FIGURE 5. Castrada paradisea n in Dalytyphloplanida (Platyhelminthes: Rhabdocoela) from Andalusia, Spain, with the description of four new species
FIGURE 5. Castrada paradisea n. sp. (A) Habitus from a live animal. (B) Reconstruction of the atrial organs from the right hand side.
FIGURE 3. Protoplanella simplex Reisinger, 1924 in Dalytyphloplanida (Platyhelminthes: Rhabdocoela) from Andalusia, Spain, with the description of four new species
FIGURE 3. Protoplanella simplex Reisinger, 1924. Habitus based on observations on live animals and serial sections.
FIGURE 4. Castrada purgatorialis n in Dalytyphloplanida (Platyhelminthes: Rhabdocoela) from Andalusia, Spain, with the description of four new species
FIGURE 4. Castrada purgatorialis n. sp. (A) Habitus from a live animal. (B) Reconstruction of the atrial organs from the left hand side.
FIGURES 30–31. Temnocephala curvicirri. 30 in Trichoptera — the newest insect order host of temnocephalans (Platyhelminthes, Temnocephalida) and the description of a new species of Temnocephala from Brazil
FIGURES 30–31. Temnocephala curvicirri. 30. Partial view of male and female reproductive systems, with cirrus (c) entering the distal portion of the vagina (dva), muscular, rounded middle portion of the vagina (mva), vesicula intermedia (vi), vesicula resorbens (vr). Scale bar = 100 µm. 31. Muscular, rounded middle portion of the vagina (mva), seen in higher magnification and vesicula intermedia (vi). Scale bar = 50 µm. FIGURES 32–34. Temnocephala caddisflyi n. sp. 32. Male terminal genitalia, cirrus (c), prostatic bulb (pb), and seminal vesicle (sv). Scale bar = 100 µm. 33. Partial view of the female reproductive system, showing the distal portion of the vagina (dva), the muscular, spheroid, middle portion of the vagina (mva), ovary (ov), and vesicula resorbens (vr). Scale bar = 100 µm. 34. DIC view of terminal portion of the cirrus (c), passing through the anterior portion (avs) and the posterior portion (pvs) of the vaginal sphincter, showing the moment of introduction of the forward portion of the dorsal retractor muscle (fprm) into the distal vagina (dva), and vesicula resorbens (vr). Scale bar = 50 µm.
FIGURES 24–29. Temnocephala caddisflyi n in Trichoptera — the newest insect order host of temnocephalans (Platyhelminthes, Temnocephalida) and the description of a new species of Temnocephala from Brazil
FIGURES 24–29. Temnocephala caddisflyi n. sp., prostatic bulb and introvert observed in different focusing planes with DIC. 24. Prostatic bulb showing the orifice entering prostatic secretion (arrow), prostatic secretion (ps), prostatic cells (pc), and the prostatic vesicle (pv). Scale bar = 50 µm. 25. Prostatic bulb (pb) and seminal vesicle (sv) with the ejaculatory duct (ej) entering the prostatic bulb. Scale bar = 50 µm. 26–29. Distal portion of the introvert, showing the large spines and the shorter swelling portion seen in different focusing planes. Scale bars = 10 µm.
FIGURES 16–17. Temnocephala caddisflyi n in Trichoptera — the newest insect order host of temnocephalans (Platyhelminthes, Temnocephalida) and the description of a new species of Temnocephala from Brazil
FIGURES 16–17. Temnocephala caddisflyi n. sp. (SEM). 16. Total body showing the posterior margin of the 'saddle-shaped', dorsolateral, 'excretory' syncytial plates (white arrows) and nephridiopores (white head arrows) (n). Scale bar = 200 µm. 17. Left, dorsolateral, 'excretory' syncytial plate (black head arrows) and the nephridiopore (white head arrow) (n). Scale bar = 20 µm.
FIGURES 9–10. Temnocephala caddisflyi n in Trichoptera — the newest insect order host of temnocephalans (Platyhelminthes, Temnocephalida) and the description of a new species of Temnocephala from Brazil
FIGURES 9–10. Temnocephala caddisflyi n. sp. juvenile cleared in lactophenol. 9. Juvenile showing rhabditogenic glands (black head arrows); disc glands (black arrows); limit between rhabditogenic glands and disc glands (white arrows); two large disc glands (paranephrocytes?) (white head arrows). Scale bar = 100 µm. 10. Testicular region showing the introvert already formed (white head arrow). Scale bar = 100 µm.
FIGURES 1–2 in Trichoptera — the newest insect order host of temnocephalans (Platyhelminthes, Temnocephalida) and the description of a new species of Temnocephala from Brazil
FIGURES 1–2. Diagram of the 'complex' cirrus and linear diagram of the 'complex' vagina. 1a. Entire cirrus (black head arrow indicates the limit between the shaft (s) and the introvert (i)); introvert angle (ia); shaft angle (sa). 1b. Higher magnification of the introvert: forward projecting retractor muscle (fprm); introvert inflation (ii); introvert-shaft limit (il); large spines (ls); retractor muscle (rm). 2. Female reproductive organs: ovary (ov); vitelline duct (vd); vesicula resorbens (vr); vesicula intermedia (vi); vagina proximal portion (pva); vagina middle portion (mva); vagina distal portion (dva); vaginal sphincter (vs).
FIGURES 3–5. Caddisfly larvae genus Baripenthus. 3 in Trichoptera — the newest insect order host of temnocephalans (Platyhelminthes, Temnocephalida) and the description of a new species of Temnocephala from Brazil
FIGURES 3–5. Caddisfly larvae genus Baripenthus. 3. Larva inside the case. Scale bar = 5 mm. 4. Anterior portion of a larva removed from the case, showing the dorsal area of egg deposition. Scale bar = 1 mm. 5. Another specimen removed from the case, dorsal view, showing in higher magnification, a larger number of eggs. Scale bar = 500 µm.
FIGURES 18–20 in Trichoptera — the newest insect order host of temnocephalans (Platyhelminthes, Temnocephalida) and the description of a new species of Temnocephala from Brazil
FIGURES 18–20. Cirrus of Temnocephala caddisflyi n. sp. from trichopterans, seen with Nomarski´s differential interference contrast microscopy (DIC). 18. Photomicrograph of the entire 'complex' cirrus, Scale bar = 100 µm. 19. Limit of the introvert portion with the shaft (black arrow), forward projecting dorsal retractor muscle (fprm), and ventral retractor muscle (rm). Scale bar = 50 µm. 20. Introvert´s swelling portion (ii) and the long spines which run along the inner wall, showing the rows of spines. Scale bar = 10 µm. FIGURES 21–23. Cirrus of Temnocephala curvicirri from belostomatid hemipterans, seen with DIC. 21. Entire 'complex' cirrus. Scale bar = 200 µm. 22. Limit of the introvert portion with the shaft (arrow), forward projecting dorsal retractor muscle (fprm), and ventral retractor muscle (rm). Scale bar = 50 µm. 23. Distal introvert´s swelling portion (ii), showing the rows of spines. Scale bar = 10 µm.
FIGURES 11–15. Temnocephala caddisflyi n in Trichoptera — the newest insect order host of temnocephalans (Platyhelminthes, Temnocephalida) and the description of a new species of Temnocephala from Brazil
FIGURES 11–15. Temnocephala caddisflyi n. sp. 11. Incomplete diagram of juvenile specimen, dorsal view, showing rhabditogenic glands (rg), extending along the sides of intestinal sac, still uncovered by vitellaria, and ducts entering tentacles. Scale bar = 100 µm. 12. Incomplete diagram of the posterior region of a juvenile specimen, dorsal view, showing adhesive disc glands (dg), including the pair of larger glands (paranephrocytes?) between testes (ldg (p)). Scale bar = 100µm. 13. Incomplete diagram of an adult specimen showing adhesive disk (ad), anterior testes (at), excretory vesicle (ev), Haswell glands (hg), mouth (m), pharynx (ph), posterior testis (pt), vitelline glands (vg), and tentacles (t). Scale bar = 250 µm. 14. Female reproductive complex, showing anterior portion of the vaginal sphincter (avs), genital atrium (ga), posterior portion of the vaginal sphincter (pvs), vesicula resorbens (vr), ovary (ov), vagina proximal portion (pva), vagina middle portion (mva), vagina distal portion (dva), vesicula intermedia (vi), and vitelline duct (vd). Scale bar = 50 µm. 15. 'Complex' cirrus, showing shaft, introvert, and the path of movement that the dorsal retractor muscle is capable of doing (arrow), during the introduction in the vagina. Scale bar = 100 µm.
FIGURE 5. Galapagetula annikae n. gen. n in Koinocystididae and Gnathorhynchidae (Platyhelminthes: Rhabdocoela: Kalyptorhynchia) from the Galapagos, with the description of three new species
FIGURE 5. Galapagetula annikae n. gen. n. sp. A, schematic overview of the organisation of the atrial organs from the right hand side (I−III indicate the levels depicted in Fig. 5 C−E in more detail). B, general organisation (from a live specimen). C, horizontal reconstruction of the atrial organs, level I (male copulatory organ and uterus; from the holotype). D, horizontal reconstruction of the atrial organs, level II (female genital system; from the holotype). E, horizontal reconstruction of the atrial organs, level III (bursa; from the holotype). C−E, common genital atrium and genital pore are indicated in dashed lines as a reference.
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