Find research datasets worth reusing

FIGURE 10 in A review of the genus Eclipidrilus (Annelida: Clitellata: Lumbriculidae), with description of a new species from western North America

FIGURE 10. Eclipidrilus pacificus, spermathecae, sagittal sections (AB, typical specimens, Hoh River, Washington), (CD, Variant 1, Peavine Ridge, Oregon). A—spermathecal vestibule. Bspermathecal ampulla, with ectal part containing darkstaining sperm to right and ental part to the left. C—part of spermathecal vestibule and ectal end of duct. D—spermathecal ampulla (with sperm in ental part), and vestibule. Abbreviations: lm—longitudinal muscle; sv—spermathecal vestibule; tm—thickened section of transverse muscle. Scale bars 50 µm.

FIGURE 9 in A review of the genus Eclipidrilus (Annelida: Clitellata: Lumbriculidae), with description of a new species from western North America

FIGURE 9. Eclipidrilus pacificus, atrial ampullae (AC, typical specimens, Hoh River, Washington), (D, Variant 1, Peavine Ridge, Oregon). A—sagittal section. B—transverse section; the four vasa deferentia are visible inside the transversecircular muscle layer. C—sagittal section, detail of outer longitudinal and inner transversecircular muscle layers. D—transverse section of atrial ampulla, showing outer longitudinal and thin, transversecircular muscle layers. Abbreviations: lm—longitudinal muscle; pr—prostate gland; tm—transversecircular muscle. Scale bars 50 µm.

FIGURE 8 in A review of the genus Eclipidrilus (Annelida: Clitellata: Lumbriculidae), with description of a new species from western North America

FIGURE 8. Eclipidrilus pacificus, male pores; sagittal sections (AB, typical specimens, Hoh River, Washington), (C, Variant 2 from Karlson Island, Columbia River), (D, Variant 1 from Peavine Ridge, Oregon). A—male pore and accessory glands. B—a partially protruded penis. Cpapilla and end of atrial duct, with accessory glands. D—papilla. Abbreviations: ag—accessory gland. Scale bars 100 µm.

FIGURE 7 in A review of the genus Eclipidrilus (Annelida: Clitellata: Lumbriculidae), with description of a new species from western North America

FIGURE 7. Spermathecae of E. pacificus variants; lateral views from sagittally dissected, mated worms (A, Variant 1, Peavine Ridge, Oregon), (B, Variant 1, Middle Fork St. Maries River, Idaho), (C, Variant 1, Eugene, Oregon), (D, Variant 2, spring at Nestucca River, Oregon), (E–F, Variant 2, Karlson Island, Columbia River). D—arrangement of 3 spermathecae in IX and adjacent segments. E—anterior spermatheca of a 3spermatheca form. F—single, posterior spermatheca of a 1spermatheca form. Abbreviations: sa—spermathecal ampulla; sd—spermathecal duct; sv—spermathecal vestibule. Scale bars 200 µm.

FIGURE 6 in A review of the genus Eclipidrilus (Annelida: Clitellata: Lumbriculidae), with description of a new species from western North America

FIGURE 6. Spermathecae of E. pacificus, typical specimens: lateral views from sagittally dissected worms (A, Hoh River, Washington), (BC, Calawah River, Washington), (D, South Naselle River, Washington). A—spermathecal ampulla extends posteriorly into XI. B—mature, unmated worm. C—partially mature worm. D—mated worm (sperm not shown). Abbreviations: sa—spermathecal ampulla; sd—spermathecal duct; sv—spermathecal vestibule. Scale bars 200 µm.

FIGURE 5 in A review of the genus Eclipidrilus (Annelida: Clitellata: Lumbriculidae), with description of a new species from western North America

FIGURE 5. Male ducts of typical E. pacificus from the Hoh River, Washington, from dissections. A—atrial ampulla. B—ectal half of atrial duct showing transition from cuboidal epithelial cells to fibrous lining of penial structure. C—ectal end of atrial duct with columnar epithelial cells, from a partially mature worm. D—penis with fibrous, extruded epithelial cells, from a mature worm. Abbreviations: ep—epithelium; lm—longitudinal muscle; pr—prostate gland; tm—transversecircular muscle. Scale bars 200 µm (A–B), 100 µm (C–D).

FIGURE 4 in A review of the genus Eclipidrilus (Annelida: Clitellata: Lumbriculidae), with description of a new species from western North America

FIGURE 4. Reproductive segments of E. pacificus, typical specimens, Hoh River, Washington, reconstructed from transverse sections. A—male pore and atrial duct in X; arrows indicate lateral positions of midpoints of chaetal pairs. B—spermathecal pores and ducts in IX. Abbreviations: ad—atrial duct; ag—accessory gland; mf—male funnel; sa—spermathecal ampulla; sd—spermathecal duct; sv—spermathecal vestibule. Scale bar 200 µm.

FIGURE 3 in A review of the genus Eclipidrilus (Annelida: Clitellata: Lumbriculidae), with description of a new species from western North America

FIGURE 3. Reproductive segments of E. pacificus (A, typical specimen, Hoh River, Washington), (B, Variant 2, Knappa Slough, Columbia River). A—ventrolateral view, showing spermathecae and atrium (vasa deferentia and anterior funnels not shown), from a whole mount. B—ventral view (schematic) of a whole–mounted worm with three spermathecal pores, showing positions of spermathecae and atrium. Abbreviations: aa—atrial ampulla; ad—atrial duct; mf—posterior male funnel; mp—male pore; ov—ovary; sa—spermathecal ampulla; sp—spermathecal pore; ss—sperm sac; te—testis. Scale bars 500 µm.

FIGURE 2 in A review of the genus Eclipidrilus (Annelida: Clitellata: Lumbriculidae), with description of a new species from western North America

FIGURE 2. Eclipidrilus pacificus (A–C, typical specimens, Hoh River, Washington), (D, typical specimen, Calawah River, Washington), (E, Variant 2, Warren Slough, Columbia River). A—chaetal bundles from two different worms: left, a ventral bundle in IX; right, a dorsal bundle in VI. Blateral view of segments I–V, from a cleared whole mount. C—lateral view, one of the lateral blood vessel pairs in LXXV. D—lateral view of a lateral blood vessel pair in LXVII. E—dorsal view of both lateral vessel pairs in LX. Scale bars 100 µm (A), 400 µm (B), 200 µm (C–E).

FIGURE 1 in A review of the genus Eclipidrilus (Annelida: Clitellata: Lumbriculidae), with description of a new species from western North America

FIGURE 1. Eclipidrilus pacificus, external characters (A–B, typical specimens, Hoh River, Washington), (C, Variant 1, Tenmile Creek, Oregon). A—lateral view of anterior segments. B—ventral view. C—lateral view. Abbreviations: mp—male pore; sp—spermathecal pore. Roman numerals indicate segment number. Scale bar 1 mm.

FIGURE 5 in Two new genera of Lumbriculidae (Annelida, Clitellata) from North Carolina, USA

FIGURE 5. Pilaridrilus uliginosus, sagittal sections of penial structures. A. Whole structure, penis retracted. B. Ental end of structure, penis retracted. C. Ectal part of atrial duct, with retracted lining of penis. D. Whole structure, penis partly extended into chamber. E. Ental end of penial structure, showing expanded end of atrial duct and base of extended penis. F. Partially extended penis, folded within chamber. Scale bars: 100 μm.

FIGURE 6. Martinidrilus carolinensis. A in Two new genera of Lumbriculidae (Annelida, Clitellata) from North Carolina, USA

FIGURE 6. Martinidrilus carolinensis. A. External view of whole worm. B. Sagittal view of head, showing pharyngeal pad. C. Chaetae, from top to bottom: a dorsal pair from segment IV, a ventral pair from XV, and a single chaeta from a posterior segment near the tail. D. Dorsal blood vessel in about XXV, with short papillae. E. Blood vessels in about segment LX, showing short lateral vessels branching off the dorsal vessel, and short vessels connecting ventral vessel to the perivisceral sinus. F. Reproductive segments. G. Spermatheca. Scale bars: A 1mm; C 50 μm; G 100 μm.

FIGURE 8. Martinidrilus carolinensis. A in Two new genera of Lumbriculidae (Annelida, Clitellata) from North Carolina, USA

FIGURE 8. Martinidrilus carolinensis. A. Nephridial vesicle at nephropore. B. Spermathecal pore. C. Spermathecal ampulla, sagittal section. D, E. Male pores, sagittal sections. F. Sagittal section showing end of common duct joined by the two vasa deferentia. G, H. Transverse sections showing junction of common duct to atrial ampulla. I. Atrial ampulla and prostates, transverse section near middle. All to the same scale; scale bars: 100 μm.

FIGURE 9. Martinidrilus arenosus. A in Two new genera of Lumbriculidae (Annelida, Clitellata) from North Carolina, USA

FIGURE 9. Martinidrilus arenosus. A. Dorsolateral view of a whole worm (note worm was cleared, so ventral chaetae are underneath). B. Short lateral vessels branching off the dorsal vessel in two posterior segments. C. Reproductive segments (gonads not shown). D. Spermathecae in VII (left) and VIII. E. Male ducts and atrium. F. Atrium and male pore of an unmated worm, Drowning Creek. G. Atrium and male pore of a mated worm from Pettiford Creek. Scale bars: A 1 mm; B 50 μm; C 400 μm; D, E 200 μm; F, G 100 μm.

FIGURE 7 in Two new genera of Lumbriculidae (Annelida, Clitellata) from North Carolina, USA

FIGURE 7. Martinidrilus carolinensis; drawings of male ducts from dissected specimens. A, B. Vasa deferentia and atria of two specimens from the type locality. C. Male pore, atrium and common duct of a specimen from the type locality; sagittal view. D. Atrium of the specimen from Peaks of Otter area, Virginia. Scale bars: 100 μm.

FIGURE 2. Pilaridrilus uliginosus. A in Two new genera of Lumbriculidae (Annelida, Clitellata) from North Carolina, USA

FIGURE 2. Pilaridrilus uliginosus. A. Genital segments of a contracted worm (fixed in alcohol), showing the normal positions of reproductive organs: male pores in X (GII), spermathecal pores in XV (covered by atrium, but three segments behind the theoretical GIV). B. Reproductive organs of a worm fixed in Bouin's solution (in two parts); note that despite the forward shift of male and spermathecal pores by two segments, the spermathecal pores are still three segments behind the theoretical GIV in this atypical specimen. C–E. Penial structures: a Bouin's-preserved worm, with penis withdrawn into the atrial duct (C); an alcohol-preserved worm, with penis extended into the penial chamber (D), and with penis extended beyond the male pore (E). Scale bars: A, B 500 μm; C–E 200 μm.

FIGURE 4 in Two new genera of Lumbriculidae (Annelida, Clitellata) from North Carolina, USA

FIGURE 4. Pilaridrilus uliginosus, atria and vasa deferentia. A. Vas deferens above and separate from atrial muscle layer, near midpoint of ampulla. B. Vas deferens embedded in atrial muscle layer (between longitudinal and circular layers), near ental end of ampulla. C. Vas deferens embedded in circular muscle layer of atrium near ectal 1/3 of ampulla, near point of entry into lumen (worm directed to left). D. Atrial muscle layers, showing lenticular openings for prostate ducts. E. Prostate glands. F. Prostate duct penetrating both muscle layers; sagittal view. All to the same scale; scale bars: 50 μm.

FIGURE 1. Pilaridrilus uliginosus. A–B in Two new genera of Lumbriculidae (Annelida, Clitellata) from North Carolina, USA

FIGURE 1. Pilaridrilus uliginosus. A–B. Whole worms; fixed in Bouin's solution (A), and in alcohol, with penes extruded (B). C. Chaetae: from left to right, a ventral pair from VI, a dorsal pair from XVIII, and a pair from a posterior segment. D. Dorsal blood vessel and branched lateral blood vessels in two posterior segments. Scale bars: A 1 mm; B–C 100 μm.

FIGURE 3 in Two new genera of Lumbriculidae (Annelida, Clitellata) from North Carolina, USA

FIGURE 3. Pilaridrilus uliginosus, sagittal sections of spermathecae. A. Spermathecal vestibule, below atrium. B. Ental end of spermathecal vestibule. C. Ectal chamber of spermathecal ampulla, with sperm oriented to ectal end at left. D. Spermathecal ampulla, with ectal chamber to left and main part to right. Scale bars: 100 μm.