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30 results for “Rhynchelmis”
FIGURE 10. P in Contributions towards a review of the genus Rhynchelmis Hoffmeister (Clitellata: Lumbriculidae)
FIGURE 10. P. paraolchonensis from the Giani collection. (A) spermathecal pores. (B) spermathecal duct and part of (broken) ampulla. (C–D) two transverse sections of a male pore. (E) atrium with prostates. (F) transverse section of a post-clitellar segment, showing the supra-intestinal and dorsal blood vessels. Scale bars = 100 μm.
FIGURE 9. P. shamanensis and P in Contributions towards a review of the genus Rhynchelmis Hoffmeister (Clitellata: Lumbriculidae)
FIGURE 9. P. shamanensis and P. alyonae. (A–B, I) P. shamanensis from Martin collection, (C–H, J–L) from Hrabė collection as olchonensis. (A) anterior end showing pharyngeal pad. (B–C) mid-body, showing dorsal and supraintestinal blood vessels. (D) transverse section of pharynx (E) transverse section of a post-clitellar segment showing dorsal and supra-intestinal blood vessels. (F) transverse section of male pores. (G–H) sections of penes. (I) external view of extruded penis. (J) sagittal section showing wide ental portion and narrow ectal portion of vas deferens. (K) atrium joined by narrow portion of a vas deferens. (L) detail of atrial wall. (M) P. alyonae spermatheca. (A, B, I, M whole mounts, C, H, K, L sagittal sections, D–G, J transverse). Scale bars: A–C, E, F = 200 μm; D, K, M = 100 μm; G–J, L = 50 μm.
FIGURE 8. R in Contributions towards a review of the genus Rhynchelmis Hoffmeister (Clitellata: Lumbriculidae)
FIGURE 8. R. orientalis from Maruyama, Sapporo. (A–B) male pores; B is from the type material. (C) ectal part of atrium in XI, with part of spermathecal ampulla to left. (D) atrium in XIV, with prostates. (E) atrium in XXX. (F) ental end of atrium in XXX. (G–H) atria from the type material, in mid-ampulla (G) and near the ental end (H). (All transverse sections). Scale bars: A–B = 200 μm; C–H = 100 μm.
FIGURE 6. R. orientalis, A–D in Contributions towards a review of the genus Rhynchelmis Hoffmeister (Clitellata: Lumbriculidae)
FIGURE 6. R. orientalis, A–D from Maruyama, Sapporo; E from Okoppe River, Aomori. (A, B) anterior ends of whole worms, showing genital pores; midventral gland pores visible on B. (C) sagittal view of genital segments, from a cleared, whole worm, same specimen as A. (D) second atrium and spermatheca of the same specimen as A, drawn from sections. (E) reproductive organs, from a sagittal dissection. Scale bars: A–D = 2 mm; E = 200 μm.
FIGURE 2. R in Contributions towards a review of the genus Rhynchelmis Hoffmeister (Clitellata: Lumbriculidae)
FIGURE 2. R. tetratheca. (A) curled longitudinal muscles, oblique muscles. (B) ventral glands in an anterior segment. (C) septal sac on 9/10. (D) nephridial duct following a lateral blood vessel. (E) accessory organ in IX. (F) detail of accessory organ. (G, H) vas deferens and atrium within sperm sac. (I) vasa deferentia joining atrium entally. (J) ectal end of atrium, male funnel on 10/11, and vas deferens. (K) male pore. (L) spermathecal duct entering ampulla (right) and diverticulum (left). (A, B, D, G, K transverse sections, C, E, F, H–J, L sagittal sections). Scale bars: A–E, H–L = 200 μm; F–G = 100 μm.
FIGURE 4. R in Contributions towards a review of the genus Rhynchelmis Hoffmeister (Clitellata: Lumbriculidae)
FIGURE 4. R. vagensis from Hrabė collection. (A) nephridium. (B) nephridial pore. (C) male pore. (D) accessory organ. (All from sagittal sections). Scale bars = 100 μm.
FIGURE 1. R in Contributions towards a review of the genus Rhynchelmis Hoffmeister (Clitellata: Lumbriculidae)
FIGURE 1. R. tetratheca. (A) lateral and ventral views of whole worms, showing segmentation and positions of the male and spermathecal pores. (B) sagittal view of spermatheca. (C) transverse view of IX, reconstructed from sections: curled longitudinal muscles, oblique muscles, spermathecal ampullae joining the intestine via short ducts and accessory organ. (D) transverse view of X, reconstructed from sections: male pores and ectal ends of atria. (E) sagittal view of genital segments, from a dissected worm. Scale bars: A = 2 mm; B = 100 μm; C–E = 500 μm.
FIGURE 3. R in Contributions towards a review of the genus Rhynchelmis Hoffmeister (Clitellata: Lumbriculidae)
FIGURE 3. R. limosella from Hrabė collection. (A) segments IX–XII, showing atrium, male funnels, and accessory organ. (B) male funnels and vasa deferentia at ectal end of atrium. (C) atrium and vas deferens. (D) ental end of atrium, with vasa deferentia embedded under the muscle layer. (E–F) male pore. (G) atrium and vas deferens. (H) accessory organ. (I–J) spermatheca and diverticulum. (K) spermathecal ampullae at gut. (A–B, F–J sagittal sections, C–E, K transverse sections). Scale bars: C, D, F–H = 100 μm; A, B, E, I–K = 200 μm.
FIGURE 5. R in Contributions towards a review of the genus Rhynchelmis Hoffmeister (Clitellata: Lumbriculidae)
FIGURE 5. R. vejdovskyi. (A) curled longitudinal muscles and oblique muscles in a post-clitellar segment. (B) head and pharynx. (C) nephridial vesicle and funnel. (D) nephridial duct extending vertically from pore. (E) part of spermathecal duct, ampulla and diverticulum. (F) atrium and male funnels in IX–X. (G) atrium, funnels, and vestigial septal sac in X– XII. (H) ental end of atrium with approaching vas deferens. (I) atrium and vas deferens. (J) male pore. (A transverse section, B– K sagittal sections). Scale bars: A–G, J = 200 μm; H, I = 100 μm.
FIGURE 7. R in Contributions towards a review of the genus Rhynchelmis Hoffmeister (Clitellata: Lumbriculidae)
FIGURE 7. R. orientalis from Maruyama, Sapporo. (A) preclitellar segment, showing midventral gland. (B) spermathecal pore. (C) vertical extension of nephridial duct. (D) ectal duct and ectal part of spermathecal ampulla. (E) ectal part of ampulla wall. (F) middle part of spermathecal ampulla. (G–H) ampulla wall in ental part; small vacuoles visible. (A–C, transverse sections, D–H sagittal sections). Scale bars: A–D, F = 200 μm; E, G, H = 100 μm.
FIGURE 9. Pararhynchelmis murdocki n in New southeastern Nearctic Rhynchelmis (Rhynchelmoides) species and the description of Pararhynchelmis n. gen. (Annelida: Clitellata: Lumbriculidae)
FIGURE 9. Pararhynchelmis murdocki n. sp. from Big Spring, Peaks of Otter. (A) transverse section in III, showing pharynx. (B) spermatheca, from a transverse section. (C) spermatheca, from a sagittal section. (D) transverse section in VIII, showing junction of spermathecae with gut. (E) transverse section in X, showing male pores and atria. (F) sagittal section of male pore in X, with extended penis. (G–H) atrial duct and male pore in X with penis retracted, transverse sections. (I) sagittal section of male pore in X, with extended penis. (J) atrial ampulla with prostates and embedded vas deferens in XI, sagittal section. (K) vas deferens approaching atrial ampulla, from a sagittal section. (L), atrial ampulla, from a sagittal section. Scale bars = 100 μm.
FIGURE 3 in New southeastern Nearctic Rhynchelmis (Rhynchelmoides) species and the description of Pararhynchelmis n. gen. (Annelida: Clitellata: Lumbriculidae)
FIGURE 3. Rhynchelmis (Rhynchelmoides) bolinensis n. sp., from seep at Pokeberry Creek, photographs of sections. (A) spermatheca in VIII, from a transverse section. (B) spermathecal ampulla from a sagittal section. (C) spermathecal duct and pore. (D) dorsal loop of nephridial duct, from a transverse section. (E) male pore and accessory glands in X, from a transverse section. (F–G) detail of male pore from transverse sections. (H) transition from muscular, ectal portion to prostate-covered, ental portions of atrium at 10/11; from a sagittal section. (I) ectal, muscular portion of atrium, from a sagittal section. (J) ental, prostate-covered portion of atrium, from a sagittal section. (K–N) atrium and vas deferens from transverse sections: in X (K), at 10/11 (L), in XII (M), at ental end (N). Scale bars = 100 μm.
FIGURE 1 in New southeastern Nearctic Rhynchelmis (Rhynchelmoides) species and the description of Pararhynchelmis n. gen. (Annelida: Clitellata: Lumbriculidae)
FIGURE 1. Rhynchelmis (Rhynchelmoides) bolinensis n. sp. A–B, D from seep by Pokeberry Creek, Chatham County, North Carolina; C from Beech Swamp, Halifax County, North Carolina. (A–C) drawings of whole worms. (D) chaeta pairs, from top to bottom: a ventral pair in VI, a dorsal pair in VI, and a pair from about the posterior ¼ of the worm. Scale bars: A–C = 2 mm; D = 200 μm.
FIGURE 6 in New southeastern Nearctic Rhynchelmis (Rhynchelmoides) species and the description of Pararhynchelmis n. gen. (Annelida: Clitellata: Lumbriculidae)
FIGURE 6. Rhynchelmis (Rhynchelmoides) croatanensis n. sp., from seep at Pettiford Creek, photographs of sections. (A) spermathecal duct and pore in VIII, from a sagittal section. (B) spermathecal ampulla in VIII, from a sagittal section. (C) atrial duct and male pore in IX, from a sagittal section. (D–E) male pores from transverse sections. (F) ectal end of atrium, from a sagittal section. (G–L) atrium and vas deferens from transverse sections: distended, ectal end in IX (G), in X (H), in XIV (I), beginning of prostate-covered portion in XVI (J), middle of prostate-covered portion in XIX (K), at ental end (L). Scale bars = 100 μm.
FIGURE 4 in New southeastern Nearctic Rhynchelmis (Rhynchelmoides) species and the description of Pararhynchelmis n. gen. (Annelida: Clitellata: Lumbriculidae)
FIGURE 4. Rhynchelmis (Rhynchelmoides) croatanensis n. sp., unmounted worms from seep at Pettiford Creek, Carteret County, North Carolina. (A–B) ventrolateral and ventral views of mature worms. (C) ventral view of genital pores of a partially-mature worm. (D) chaeta pairs, from top to bottom: a ventral pair in VII, a dorsal pair in VII, and a pair from about the posterior ¼ of the worm. Scale bars: A–C = 2 mm; D = 200 μm.
FIGURE 8. Pararhynchelmis murdocki n in New southeastern Nearctic Rhynchelmis (Rhynchelmoides) species and the description of Pararhynchelmis n. gen. (Annelida: Clitellata: Lumbriculidae)
FIGURE 8. Pararhynchelmis murdocki n. sp. from Big Spring, Peaks of Otter. (A) reproductive organs, lateral view, from a whole mounted worm. (B) spermathecae, reconstructed from transverse sections. (C) male reproductive structures, sagittal view in X–XI. (D) male pores and atria, reconstructed from transverse sections. (E) a nephridium in VII. Scale bars = 200 μm.
FIGURE 7. Pararhynchelmis murdocki n in New southeastern Nearctic Rhynchelmis (Rhynchelmoides) species and the description of Pararhynchelmis n. gen. (Annelida: Clitellata: Lumbriculidae)
FIGURE 7. Pararhynchelmis murdocki n. sp. from Big Spring, Peaks of Otter, Amherst County, Virginia. (A) anterior ends of three unmounted specimens, showing male and spermathecal pores. (B) a whole, unmounted worm. (C) a ventral chaeta pair from VI. Scale bars: A–B = 1 mm; C = 100 μm.
FIGURE 2 in New southeastern Nearctic Rhynchelmis (Rhynchelmoides) species and the description of Pararhynchelmis n. gen. (Annelida: Clitellata: Lumbriculidae)
FIGURE 2. Rhynchelmis (Rhynchelmoides) bolinensis n. sp., drawing of reproductive organs. A–B, E–F from seep at Pokeberry Creek; C–D, from Beech Swamp. (A) spermatheca and atrium in segments VIII–XVIII. (B) detail of spermatheca and ectal end of atrium in VIII–X. (C) spermatheca. (D) everted penis. (E) spermathecae in VIII, reconstructed from sections. (F) atria and male pores in X, reconstructed from sections. Arrows indicate position of the chaetal bundles in E–F. Scale bars = 500 μm.
FIGURE 5 in New southeastern Nearctic Rhynchelmis (Rhynchelmoides) species and the description of Pararhynchelmis n. gen. (Annelida: Clitellata: Lumbriculidae)
FIGURE 5. Rhynchelmis (Rhynchelmoides) croatanensis n. sp., from seep at Pettiford Creek, drawings of reproductive organs. (A) spermatheca and atrium in segments VIII–XXII. (B) detail of spermatheca and ectal end of atrium in VIII– XII. (C) spermathecae in VIII, reconstructed from sections. (D) atria and male pores in IX, reconstructed from sections. Arrows indicate position of the chaetal bundles in C–D. Scale bars = 500 μm.
FIGURE 8. R. diespluviae n in Rhynchelmis subgenus Sutroa Eisen new rank, with two new species from western North America (Annelida, Clitellata, Lumbriculidae)
FIGURE 8. R. diespluviae n. sp. from Rainy Day Creek, Idaho (A, C–D), from Cold Spring Creek, Idaho (B), from Hurst Creek, Washington (E–F), and from Orogrande Creek, Idaho (G–H), reproductive structures. A, F, G. Spermatheca, sagittal view. B–E, H. Penial bulb and ectal end of atrium in X, sagittal view from medial side; penial bulb (E) is everted. Scale bars 300 Μm (all drawings to same scale).
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