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7 results for “Gammanema”
Fig. 4 in Two new rapacious nematodes from intertidal sediments, Gammanema magnum sp. nov. and Synonchium caudatubatum sp. nov. (Nematoda, Selachinematidae)
Fig. 4. Gammanema magnum sp. nov., paratype, ♀. A–B. Head, showing the small multispiral amphideal fovea, the leaf-like inner (arrowhead) and outer (black arrow) labial setae, the transverse rows of punctuations, and the buccal cavity as drawn in Fig. 2. C. Anterior region, showing the cylindrical pharynx surrounded by numerous cells, with anterior end swelling but not forming a bulb. D. Large spermatheca with globular to oval sperm cells. E. Overview, showing the slender body and conical tail. F. The intestine contains a prey nematode, likely a member of Epacanthion Wieser, 1953 (white arrow). Scale bars: 50 μm.
Fig. 7 in Two new rapacious nematodes from intertidal sediments, Gammanema magnum sp. nov. and Synonchium caudatubatum sp. nov. (Nematoda, Selachinematidae)
Fig. 7. Synonchium caudatubatum sp. nov., paratypes, ♀♀. A–B. Head, showing the same structures as male holotype. C. Spicules (arrow) of prey nematodes left in the intestine. D. Tail, showing the caudal glands with spinneret and the bluntly rounded tail with a protuberant caudal duct. E. Overview, showing the slightly slender body shape and two opposed testes. Scale bars: A–D = 50 µm, E = 100 µm.
Fig. 5 in Two new rapacious nematodes from intertidal sediments, Gammanema magnum sp. nov. and Synonchium caudatubatum sp. nov. (Nematoda, Selachinematidae)
Fig. 5. Synonchium caudatubatum sp. nov., holotype, ♂ (A, C–F) and a paratype, ♀ (B). A. Overview, showing the slightly slender body shape, the broad anterior buccal cavity and the narrow posterior buccal cavity with three mandibles, the cylindrical pharynx with anterior end swelling, the two opposed testes with oval sperm cells, the almost straight spicules without gubernaculum, the caudal glands with spinneret, and the bluntly rounded tail with a protuberant caudal duct. B. Overview, showing same structures as male holotype except the two reflexed ovaries. C. Each mandible has a large tooth flanked by three small teeth to each side. D–E. Head, showing the papillate sensilla, transverse oval amphideal fovea, transverse rows of punctuations, lateral cuticle pores, the broad anterior buccal cavity and the narrow posterior buccal cavity with three mandibles. F. Tail, showing the almost straight spicules without gubernaculum, the three caudal glands with spinneret, and the bluntly rounded tail with protuberant caudal duct. Scale bars: A–B, D–F = 50 μm, C = 50 μm.
Fig. 6 in Two new rapacious nematodes from intertidal sediments, Gammanema magnum sp. nov. and Synonchium caudatubatum sp. nov. (Nematoda, Selachinematidae)
Fig. 6. Synonchium caudatubatum sp. nov. holotype, ♂ (A–C) and a paratype, ♂ (D). A–B. Head, showing the papillate sensilla, transverse oval amphideal fovea, transverse rows of punctuations, lateral cuticle pores, the broad anterior buccal cavity and narrow posterior buccal cavity with three mandibles each with seven teeth, and the swelling anterior end of pharynx. C. Tail, showing the almost straight spicules without gubernaculum, and the bluntly rounded tail with a protuberant caudal duct. D. Overview, showing the slightly slender body. Scale bars: A–C = 30 µm, D = 100 µm.
Fig. 3 in Two new rapacious nematodes from intertidal sediments, Gammanema magnum sp. nov. and Synonchium caudatubatum sp. nov. (Nematoda, Selachinematidae)
Fig. 3. Gammanema magnum sp. nov., holotype, ♂. A. Surface view of head, showing the large amphideal fovea, outer labial setae (arrowheads), the slender cephalic setae (white arrows), and the transverse rows of punctuations. B. Neck region, showing the leaf-like inner labial setae (black arrows), the broad anterior buccal cavity reinforced by cuticularized rhabdia, each with about six pointed denticles at each posterior end, the narrow and cylindrical posterior buccal cavity surrounded by six broad rhabdia. C. Overview, showing the slender body and conical tail. D. Globular to oval sperm cells. E. Two unequally long spicules. F. Posterior region, showing the opposed testes with globular to oval sperm, the caudal glands with spinneret, and the conical tail. Scale bars: A–B = 50 μm, C–F = 100 μm.
Fig. 1 in Two new rapacious nematodes from intertidal sediments, Gammanema magnum sp. nov. and Synonchium caudatubatum sp. nov. (Nematoda, Selachinematidae)
Fig. 1. Gammanema magnum sp. nov., holotype, ♂. A. Surface view of head, showing the very large amphideal fovea, six leaf-like outer labial setae, four slender cephalic and four slender cervical setae, and the transverse rows of punctuations. B. Inside view of head, showing the broad anterior buccal cavity reinforced by cuticularized rhabdia each with about six pointed denticles at the posterior end, the narrow and cylindrical posterior buccal cavity surrounded by six broad rhabdia, and the anterior pharynx swelling but not forming a bulb. C. Neck region, showing the pharynx surrounded by numerous cells, nerve ring, the large intestine cells filled of inclusions, and the irregular intestine lumen. D. Posterior region, showing the opposed testes with globular to oval sperm cells (arrowheads), the unequally long spicules, the caudal glands (arrows), and the short and conical tail. E. Two spicules. Scale bars: 50 μm.
Fig. 2 in Two new rapacious nematodes from intertidal sediments, Gammanema magnum sp. nov. and Synonchium caudatubatum sp. nov. (Nematoda, Selachinematidae)
Fig. 2. Gammanema magnum sp. nov., paratype, ♀. A. Overview, showing the slender body shape, the cylindrical pharynx with anterior swollen portion, the two reflexed ovaries, the caudal glands with spinneret, and the conical tail. B. Surface view of head, showing the very small multispiral amphideal fovea, leaf-like inner (arrowheads) and outer (arrows) labial setae, four slender cephalic and four slender cervical setae, and the transverse rows of punctuations. C. Inside view of head, showing similar features as the male holotype. D. Cuticle with transverse rows of punctuations. E. Vulva. Scale bars: A = 100 μm, B–E = 50 μm.
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