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24 results for “Rhyacodrilus”
FIGURE 4 in New species of Rhyacodrilus (Annelida: Clitellata: Rhyacodrilinae) of North America, with re-description of R. sodalis (Eisen, 1879)
FIGURE 4. Rhyacodrilus quileuticus sp. n. A. Anterior body end. B. Coelomocytes in body cavity. C. Epithelium in segment X in front of, and at the clitellum. D–E. Dorsal chaetae from segments IV(D) and XIII (E). F–H. Ventral chaetae from segments III (F), V (G) and posterior (H). I. Penial chaetae in XI. J. Spermathecal chaetae in X. K. Thickened epidermal pad surrounding the spermathecal chaeta. L. Atrium.
FIGURE 3 in New species of Rhyacodrilus (Annelida: Clitellata: Rhyacodrilinae) of North America, with re-description of R. sodalis (Eisen, 1879)
FIGURE 3. Rhyacodrilus saelonae sp. n. A–B. Ventral gland in segment X (A) with a detail of the opening of the gland to the integument (B). C. Area glareosa as seen in vivo behind the ventral chaetae of segment X. D–E. Spermatheca and ventral gland in segment X. F–H. Male duct. All except C from sagittal, histological sections.
FIGURE 15 in New species of Rhyacodrilus (Annelida: Clitellata: Rhyacodrilinae) of North America, with re-description of R. sodalis (Eisen, 1879)
FIGURE 15. Rhyacodrilus longichaeta sp. n. A–N. Guadalupe Creek population. A. Coelomocytes. B. Clitellum. C. Nephridium composed from several photographs. D. Penial chaetae. E–H. Dorsal chaetae in segments VI (E), hispid hair chaeta (F), pectinate in XV (G) and posterior segment (H). I. Posterior ventral chaetae. J–M. Anterior ventral chaetae of segments II (J), IV, (K) VI (L), IX (M) from the same individual. N. Ventral chaeta of segment X (spermathecal segment). O–T. Cooper River population, immature specimens. O–P. Dorsal chaetae, pectinates in anterior segments (O), hair chaeta showing lateral hairs (P). R–T. Ventral chaetae in segment II (R), IX (S), and posterior (T).
FIGURE 8 in New species of Rhyacodrilus (Annelida: Clitellata: Rhyacodrilinae) of North America, with re-description of R. sodalis (Eisen, 1879)
FIGURE 8. Rhyacodrilus clio sp. n. A–B. Coyote Creek population. A. Reproductive organs. B. Atria in different orientations and with varying degree of extrusion of the penis. C. Reproductive organs in specimens from Chalone Creek population. Drawings schematic.
FIGURE 7 in New species of Rhyacodrilus (Annelida: Clitellata: Rhyacodrilinae) of North America, with re-description of R. sodalis (Eisen, 1879)
FIGURE 7. Rhyacodrilus clio sp. n. Schematic drawings of reproductive organs in Squaw Creek population. A. Position of spermathecal and male pores in segments X and XI. B. Male duct. C. Reproductive organs. D. Atria in different orientation and various degrees of extrusion of the penis. E. 3 consecutive histological sections of atrium.
FIGURE 14 in New species of Rhyacodrilus (Annelida: Clitellata: Rhyacodrilinae) of North America, with re-description of R. sodalis (Eisen, 1879)
FIGURE 14. Rhyacodrilus longichaeta sp. n. Guadalupe Creek population. A. Lateral view showing the clitellar region and the position of genital pores. B. Ventral chaetae of segments IX and X (spermathecal segment), showing differences in size and shape (one of the spermathecal chaetae is partially-developed). C. Schematic view of genitalia. D-E. Details of the musculature strands associated with the atrial duct and penial chaetae, lateral view (D) and view from midline of body (E). F. Histological section of the atrium.
FIGURE 11 in New species of Rhyacodrilus (Annelida: Clitellata: Rhyacodrilinae) of North America, with re-description of R. sodalis (Eisen, 1879)
FIGURE 11. Rhyacodrilus propiporus sp. n. A–B Schematic drawings of reproductive organs in population from Lower Little River. C. Ventral view of spermathecae and atria showing musculature associated with the pores. D. Schematic drawing of reproductive organs in population from Powell's Creek (unmated specimen).
FIGURE 2 in New species of Rhyacodrilus (Annelida: Clitellata: Rhyacodrilinae) of North America, with re-description of R. sodalis (Eisen, 1879)
FIGURE 2. Rhyacodrilus saelonae sp. n. A. Anterior region of the body. B. Coelomocytes in body cavity. C. Clitellar epidermis at lateral (glandular) and ventral (non glandular) sides of segment XI. D–E. Dorsal chaetae from anterior (D) and posterior (E) segments. F–G. Ventral chaetae from segment VIII (F) and a posterior segment (G). H. Spermathecal chaetae. I. Spermathecal chaetae, detail. J. Nephridium. K. Ventral glands. L. Spermathecal chaetae in two specimens. M. Penial chaetae. A–K microscopic photographs from whole mounts. L–M drawings from whole mounts.
FIGURE 13 in New species of Rhyacodrilus (Annelida: Clitellata: Rhyacodrilinae) of North America, with re-description of R. sodalis (Eisen, 1879)
FIGURE 13. Rhyacodrilus alcyoneus sp. n. Schematic drawings of the reproductive system and penial chaetae in XI. A. View from median body line, B. Lateral view of atrium and chaetal tubercula in segments IX and X.
FIGURE 6 in New species of Rhyacodrilus (Annelida: Clitellata: Rhyacodrilinae) of North America, with re-description of R. sodalis (Eisen, 1879)
FIGURE 6. Rhyacodrilus clio sp. n. A. Prostomium and anterior body region. B. Clitellum in segments X to XII. C–F. Chaetae from Squaw Creek population: dorsal chaetae in segment VII (C), posterior dorsal (D), ventral chaetae in III (E), postclitellar ventral chaetae (F). G–J. Chaetae from Coyote Creek population: anterior dorsal chaetae (G), posterior dorsal chaetae (H), anterior ventral (I), posterior ventral chaetae (J). K. Penis everted (histological section). L. Coelomocytes. M. Detail of one ventral gland in V (histological section).
FIGURE 1 in New species of Rhyacodrilus (Annelida: Clitellata: Rhyacodrilinae) of North America, with re-description of R. sodalis (Eisen, 1879)
FIGURE 1. Rhyacodrilus saelonae sp. n. A, B. Schematic drawings of the anterior region of the body (A), ventral view of clitellar segments (B). C, D. Reproductive system. E. Detail of spermathecal segment. F. Detail of male pores with penial chaetae and associated muscles. A, B, D–F from whole mounts, C from a dissection.
FIGURE 18 in New species of Rhyacodrilus (Annelida: Clitellata: Rhyacodrilinae) of North America, with re-description of R. sodalis (Eisen, 1879)
FIGURE 18. Rhyacodrilus sodalis (Eisen, 1879), neotypes (A–J) and former neotype (Brinkhurst 1965), invalidated (K–L). A. Coelomocytes. B. Ventral gland in segment IX. C. Sperm in spermatheca and sperm funnel showing a characteristic wavy appearance. D. Dorsal anterior chaetae. E. Dorsal posterior chaetae. F–H. Ventral chaetae in IV (F), VII (G) and posterior (H). I. Penial chaetae in a typical fan-wise arrangement within the lenticular depression surrounding the male pores. J. Faintly bifid tips of penial chaetae. K–L. Pectinate dorsal chaetae of segment IV (K) and VI (L) in Lake Tahoe invalidated neotype (Brinkhurst, 1965)
FIGURE 5 in New species of Rhyacodrilus (Annelida: Clitellata: Rhyacodrilinae) of North America, with re-description of R. sodalis (Eisen, 1879)
FIGURE 5. Rhyacodrilus quileuticus sp. n. A. Anterior part of the body. B. Reproductive organs. C. Spermathecal chaetae. D. Penial chaetae.
FIGURE 10 in New species of Rhyacodrilus (Annelida: Clitellata: Rhyacodrilinae) of North America, with re-description of R. sodalis (Eisen, 1879)
FIGURE 10. Rhyacodrilus propiporus sp. n. A. Schematic outline of anterior part of the body and clitellar region. B. Schematic drawing of reproductive organs. C. Histological (sagittal) section of spermatheca. D–F. Consecutive series of histological sections of atrial ampulla and vas deferens.
FIGURE 16 in New species of Rhyacodrilus (Annelida: Clitellata: Rhyacodrilinae) of North America, with re-description of R. sodalis (Eisen, 1879)
FIGURE 16. Rhyacodrilus (=Edmonsonia) montana (Brinkhurst, 1965). A–C. Chaetae in holotype, dorsal chaetae in segment VIII (A), ventral chaetae in segment VIII (B) and posterior segments (C). D–G. Dorsal chaetae in paratype, in segment II (D), IV (E), postclitellar (F), and very posterior (G). H–J. Ventral chaetae in paratype, in segment II (H), VIII (I), posterior (J). K. Coelomocytes in paratype.
FIGURE 12 in New species of Rhyacodrilus (Annelida: Clitellata: Rhyacodrilinae) of North America, with re-description of R. sodalis (Eisen, 1879)
FIGURE 12. Rhyacodrilus alcyoneus sp. n. A. Anterior part of the body showing the position of clitellum, chaetal tubercles and male pores. B. Dorsal pores. C. Coelomocytes. D. chloragenous cells with granules. E. Dorsal pore in the secondary annulation of segment V. F–H. Dorsal chaetae in segments VI, XIII and posterior. I–J. Ventral chaetae in segment VII and posterior, respectively. K. Atrium and penial chaetae arranged fan-wise, with numerous dorso-ventral muscular strands. L. Detail of penial chaetae and penial sac surrounded by musculature. M. Ventral chaetae in segments VII and X (spermathecal segment), for comparison.
FIGURE 17 in New species of Rhyacodrilus (Annelida: Clitellata: Rhyacodrilinae) of North America, with re-description of R. sodalis (Eisen, 1879)
FIGURE 17. Rhyacodrilus sodalis (Eisen, 1879). A–B. Schematic view of the anterior part of the body (A) and the reproductive system (B). C–F. Histological sections of the spermatheca (C) and atrium (D), with details of the atrial ampulla and prostate cells (E) and a section of the atrial duct with a narrow penis (F) marked by an arrow.
FIGURE 9 in New species of Rhyacodrilus (Annelida: Clitellata: Rhyacodrilinae) of North America, with re-description of R. sodalis (Eisen, 1879)
FIGURE 9. Rhyacodrilus propiporus sp. n. (A–J, M–N) and Rhyacodrilus subterraneus Hrabë, 1963 (K–L). A–J. Rhyacodrilus propiporus sp. n. A. Prostomium with coelomocytes. B–E. Dorsal chaetae of segment II (B), V (C), IX (D), and postclitellar (E). F–I. Ventral chaetae of segment V (F), VII (G), postclitellar (H) and very posterior (I). J. Dorsal chaetae of very posterior segments. K–L. Chaetae of Rhyacodrilus subterraneus (Martínez-Ansemil's collection, see text). K. Anterior pectinates. L. Ventrals. M–N. Rhyacodrilus propiporus sp. n. Ventral view of the body, whole mount. M. Spermathecal pores and male pores. N. Atrium opening in a porophore.
FIGURE 5 in Integrative taxonomy of a new species of Rhyacodrilus (Annelida: Clitellata: Rhyacodrilinae) from Tibet Plateau rivers, with a preliminary assessment of its phylogenetic position
FIGURE 5. Phylogenetic tree generated by Bayesian Inference based on the data of the nuclear ITS2. Posterior probabilities> 0.5 are indicated in front of the nodes. The grey branches indicate outgroup. The red font indicates the new species. Nai, Naidinae; Rhy, Rhyacodrilinae; Pha, Phallodrilinae; Tub, Tubificinae; Lim, Limnodriloidinae; Opi, Opistocystinae; Pri, Pristininae.
FIGURE 4 in Integrative taxonomy of a new species of Rhyacodrilus (Annelida: Clitellata: Rhyacodrilinae) from Tibet Plateau rivers, with a preliminary assessment of its phylogenetic position
FIGURE 4. Phylogenetic tree generated by Bayesian Inference based on concatenated data of three loci (16S rDNA+COI+ITS2). Posterior probabilities> 0.5 are indicated in front of the nodes. Grey branches indicate outgroups. The red font indicates the new species. Nai, Naidinae; Rhy, Rhyacodrilinae; Pha, Phallodrilinae; Tub, Tubificinae; Lim, Limnodriloidinae; Opi, Opistocystinae; Pri, Pristininae. The subfamilial position of Heronidrilus and Bothrioneurum in Rhyacodrilinae is questionable and therefore put in quotation marks.
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