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41 results for “Oncholaimidae”
Fig. 3 in Oncholaimus langhovdensis sp. nov. (Nematoda: Enoplea: Oncholaimida), a New Species of Free-living Marine Nematode from Langhovde, Dronning Maud Land, East Antarctica
Fig. 3. Oncholaimus langhovdensis sp. nov., SEM images. A female ICHUM 5322 (A, B, D, F) and a male ICHUM 5321 (C, E). A, head, anterior view; B, head, lateral view; C, male tail, lateral view; D, female tail, lateral view; E, male cloacal region, ventral view; F, vulva, ventrolateral view. Scale bars: A, B, E, F, 10 µm; C, D, 50 µm.
Fig. 2 in Oncholaimus langhovdensis sp. nov. (Nematoda: Enoplea: Oncholaimida), a New Species of Free-living Marine Nematode from Langhovde, Dronning Maud Land, East Antarctica
Fig. 2. Oncholaimus langhovdensis sp. nov. Male ICHUM 5311 (holotype; A, B), females ICHUM 5316 (C, D) and 5317 (E). A, testes; B, left spicule, lateral view; C, female posterior region; D, uvette and osmosium, right lateral view; E, uvette and osmosium, ventral view. Abbreviations: a.t., anterior testis; d.e., ductus entericus; d.u., ductus uterinus; e., egg; i., intestine; os., osmosium; ov., ovary; p.t., posterior testis; ut., uterus; uv., uvette; v., vulva; v.d., vas deferens. Scale bars: A, C, 500 µm; B, 10 µm; D, E, 50 µm.
FIGURE 7 in Oloncholaimus piipi gen. et sp. nov. (Nematoda, Oncholaimidae) from Piip submarine volcano, the Bering Sea
FIGURE 7. Oloncholaimus piipi gen. et sp. nov. Light microscopy, DIC. A–E: Examples of intestine content. Scale bars: A–D—50 μm; E—25 μm.
FIGURE 4 in Oloncholaimus piipi gen. et sp. nov. (Nematoda, Oncholaimidae) from Piip submarine volcano, the Bering Sea
FIGURE 4. Oloncholaimus piipi gen. et sp. nov. A–E, J—Light microscopy, DIC; F–I—Scanning electron microscopy. A: Anterior end of male (paratype); B–E: Male head (paratype); F: Male tail; G: Precloacal region of the male, ventral view; H: Supplementary organ; I: Mail tail tip; J: Male body (paratype). Scale bars: A—50 μm; B–E—25 μm; F, I—20 μm; G—10 μm; H—1; J—500 μm. Abbreviations: a—amphid; e.p.—excretory pore; o.f.g.—orifice of the pharyngeal gland.
FIGURE 7 in Two new species of free-living marine nematodes (Nematoda: Oncholaimida: Enchelidiidae) from Maemul Island, Korea
FIGURE 7. Ledovitia brevis sp. nov. A, male head, showing buccal cavity, holotype; B, male head, showing amphidial fovea, holotype; C, male precloacal supplements, holotype; D, male tail, showing spicules, gubernaculum, precloacal setae and terminal setae, holotype; E, female vulva, paratype. Scale bars: 10 µm (A–C) and 50 µm (D, E).
FIGURE 5 in Two new species of free-living marine nematodes (Nematoda: Oncholaimida: Enchelidiidae) from Maemul Island, Korea
FIGURE 5. Ledovitia brevis sp. nov. A, male pharynx, holotype; B, male head and nerve ring, holotype; C, male habitus, holotype; D, male head, holotype. Scale bars: 20 µm (B, D) and 100 µm (A, C).
FIGURE 6 in Two new species of free-living marine nematodes (Nematoda: Oncholaimida: Enchelidiidae) from Maemul Island, Korea
FIGURE 6. Ledovitia brevis sp. nov. A, male pre–cloacal region, holotype; B, male spicules and gubernaculum, holotype; C, female habitus, paratype; D, male tail, holotype; E, male tail end, holotype. Scale bars: 20 µm (A, B, D, E) and 100 µm (C).
FIGURE 4 in Two new species of free-living marine nematodes (Nematoda: Oncholaimida: Enchelidiidae) from Maemul Island, Korea
FIGURE 4. Abelbolla maemulensis sp. nov. A, male head, showing buccal cavity, holotype; B, male head, showing amphidial fovea, holotype; C, male precloacal supplements, holotype; D, male spicules and gubernaculum, holotype; E, male tail end, showing terminal setae, holotype; F, female vulva, paratype. Scale bars: 10 µm (A–E) and 30 µm (F).
FIGURE 2 in Two new species of free-living marine nematodes (Nematoda: Oncholaimida: Enchelidiidae) from Maemul Island, Korea
FIGURE 2. Abelbolla maemulensis sp. nov. A, male pharynx, holotype; B, male head, holotype; C, male habitus, holotype. Scale bars: 20 µm (A, B) and 100 µm (C).
FIGURE 3 in Two new species of free-living marine nematodes (Nematoda: Oncholaimida: Enchelidiidae) from Maemul Island, Korea
FIGURE 3. Abelbolla maemulensis sp. nov. A, male precloacal supplements, holotype; B, male spicules and gubernaculum, holotype; C, male precloacal region and tail, holotype; D, female habitus, paratype; E, male tail end, holotype. Scale bars: 20 µm (A–C, E) and 100 µm (D).
FIGURE 6 in A new species of Pontonema (Oncholaimidae, Nematoda) and a redescription of Pontonema incisum Wieser, 1953 from Santa Cruz and Chubut Provinces, Argentina
FIGURE 6. Male of Pontonema incisum. A. Entire; B. Head, buccal cavity and teeth; C. Amphideal fovea; D. Copulatory apparatus, spicules, gubernaculum and precloacal sensory field. Scale bar: A = 50 µm; B–D= 20 µm.
FIGURE 3 in A new species of Pontonema (Oncholaimidae, Nematoda) and a redescription of Pontonema incisum Wieser, 1953 from Santa Cruz and Chubut Provinces, Argentina
FIGURE 3. Holotype male of Pontonema golfonuevensis sp. nov. A. Entire; B. Head, buccal cavity and teeth; C. Amphideal fovea; D. Copulatory apparatus, spicules, gubernaculum and precloacal sensory field. Scale bar: A = 50 µm; B–D= 20 µm.
FIGURE 2 in A new species of Pontonema (Oncholaimidae, Nematoda) and a redescription of Pontonema incisum Wieser, 1953 from Santa Cruz and Chubut Provinces, Argentina
FIGURE 2. Holotype male of Pontonema golfonuevensis sp. nov. A. Head, buccal cavity and teeth; B. Amphideal fovea and cephalic setae; C. Copulatory apparatus, spicules, gubernaculum and precloacal sensory field; D. Posterior end. Scale bar: A– D= 20 µm.
FIGURE 5 in A new species of Pontonema (Oncholaimidae, Nematoda) and a redescription of Pontonema incisum Wieser, 1953 from Santa Cruz and Chubut Provinces, Argentina
FIGURE 5. Male of Pontonema incisum. A. Amphideal fovea and cephalic setae; B. Copulatory apparatus, spicules, gubernaculum and precloacal sensory field; C. Head, buccal cavity and teeth; D. Posterior end. Scale bar: A–D = 20 µm.
FIGURE 1 in A new species of Pontonema (Oncholaimidae, Nematoda) and a redescription of Pontonema incisum Wieser, 1953 from Santa Cruz and Chubut Provinces, Argentina
FIGURE 1. Map of the sampling areas: A) Golfo Nuevo and "Golfito" in Chubut Province; B) "Isla de los Pájaros" and "Punta Cascajo" in Santa Cruz Province.
FIGURE 4 in A new species of Pontonema (Oncholaimidae, Nematoda) and a redescription of Pontonema incisum Wieser, 1953 from Santa Cruz and Chubut Provinces, Argentina
FIGURE 4. Female of Pontonema incisum. A. Amphideal fovea and cephalic setae; B. Posterior end; C. Head, buccal cavity and teeth; D. Vulva. Scale bar: A–C = 20 µm; D= 100 µm.
FIGURE 4 in Paroctonchus nanjiensis gen. nov., sp. nov. (Nematoda, Enoplida, Oncholaimidae) from intertidal sediments in the East China Sea
FIGURE 4. Paroctonchus nanjiensis gen. nov., sp. nov. Female paratype. A: The reflexed anterior ovary; B: Vulva, short vagina and many small glandular cells; C: Overview of the two reflexed ovaries without demanian system; D: The conicalcylindrical tail. Scale bars: A, B = 30 µm; C, D = 50 µm.
FIGURE 3 in Paroctonchus nanjiensis gen. nov., sp. nov. (Nematoda, Enoplida, Oncholaimidae) from intertidal sediments in the East China Sea
FIGURE 3. Paroctonchus nanjiensis gen. nov., sp. nov. Males. A–D: Head of the male holotype, showing the sclerotized buccal cavity with three large teeth with the left ventrosublateral tooth the largest and many additional small teeth on the wall of buccal cavity, each lip with one outer labial seta (arrowhead) and the transverse slit-like aperture of the amphidial fovea (arrow); E: Head of a male paratype, showing the largest left ventrosublateral tooth and the dorsal view of the amphidial fovea (arrow); F–H: Posterior region and overview of the male holotype, showing the body outline, the short and straight spicules, many wart-like supplements (arrows) and the conical-cylindrical tail. Scale bars: A–G = 30 µm; H = 100 µm.
FIGURE 5 in Paroctonchus nanjiensis gen. nov., sp. nov. (Nematoda, Enoplida, Oncholaimidae) from intertidal sediments in the East China Sea
FIGURE 5. Juveniles of Paroctonchus nanjiensis sp. nov. (A, B), Octonchus marinus (C, D), Patagonema iubatum (E, F) and four representative genera/subfamilies of the families Oncholaimidae (G–I) and Enchelidiidae (J). A, B: Juvenile of Paroctonchus nanjiensis sp. nov. with three large teeth and many additional small teeth and a conical-cylindrical tail; C, D: Juvenile of Octonchus marinus with one large tooth and eight small teeth and a conical tail (after Schulz 1932); E, F: Juvenile of Patagonema iubatum with three large teeth and three mandibular ridges with small teeth (after Pastor de Ward et al. 2015); G: Oncholaimelloides, representing the subfamily Oncholaimellinae, typically with three teeth: one large and two slightly smaller teeth (after Murphy 1966); H: Eurystomina, representing the family Enchelidiidae, with three teeth and many denticles (after de Man 1907); I: The three teeth are either very small or absent in the subfamily Pelagonematinae, in which Phaenoncholaimus has a well-developed dorsal tooth and an inconspicuous left ventrosublateral tooth (after Kreis 1934); J: No teeth exist in Krampia of the subfamily Krampiinae (after Belogurov & Dashenko 1981).
FIG. 5 in Sibling species in the marine pollution indicator genus Pontonema (Nematoda: Oncholaimidae), with a description of mediterranea sp. nov.
FIG. 5. Pontonema mediterranea sp. nov. (a) Lateral view of male head-end; (b) lateral view of male tail-end; (c) lateral view of female tail.
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