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60 results for “Selachinematidae”
FIGURE 8. Bayesian tree inferred from D2–D3 in Molecular characterisation of five nematode species (Chromadorida, Selachinematidae) from shelf and upper slope sediments off New Zealand, with description of three new species
FIGURE 8. Bayesian tree inferred from D2–D3 of LSU sequences under the general time-reversible (GTR) + proportion of invariable sites (I) + gamma distribution (G) model. Posterior probabilities greater than or equal to 50% are given on appropriate clades. New sequences provided in the present study are shown in bold. The scale (bottom left) stands for substitutions per site.
FIGURE 1. Cheironchus haurakiensis n in Molecular characterisation of five nematode species (Chromadorida, Selachinematidae) from shelf and upper slope sediments off New Zealand, with description of three new species
FIGURE 1. Cheironchus haurakiensis n. sp. A: Male anterior body region; B: male head; C: lateroventral mandible; D: spicule and gubernaculum; E: female reproductive system. Scale bar: A = 50 mm, B = 28 mm, C = 20 mm, D = 23 mm, E = 100 mm.
FIGURE 4. Halichoanolaimus anisospermus n in Molecular characterisation of five nematode species (Chromadorida, Selachinematidae) from shelf and upper slope sediments off New Zealand, with description of three new species
FIGURE 4. Halichoanolaimus anisospermus n. sp. A: Female anterior body region; B: female posterior body region; C: entire male; D: entire female. Scale bar: A = 40 mm, B = 30 mm, C = 110 mm, D = 135 mm.
FIGURE 3. Halichoanolaimus anisospermus n in Molecular characterisation of five nematode species (Chromadorida, Selachinematidae) from shelf and upper slope sediments off New Zealand, with description of three new species
FIGURE 3. Halichoanolaimus anisospermus n. sp. A: Male anterior body region; B: male head; C: cloacal region; D: male posterior body region. Arrows show the location of the precloacal supplements. Scale bar: A & D = 40 mm, B & C = 25 mm.
FIGURE 7 in Molecular characterisation of five nematode species (Chromadorida, Selachinematidae) from shelf and upper slope sediments off New Zealand, with description of three new species
FIGURE 7. Bayesian tree inferred from SSU sequences under the general time reversible (GTR) + proportion of invariable sites (I) + gamma distribution (G) model. Posterior probabilities greater than or equal to 50% are given on appropriate clades. New sequences provided in the present study are shown in bold. The scale (bottom left) stands for substitutions per site.
FIGURE 2. Bendiella vivipara n in Two new ovoviviparous species of the family Selachinematidae and Sphaerolaimidae (Nematoda, Chromadorida & Monhysterida) from the northern South China Sea
FIGURE 2. Bendiella vivipara n. sp. Light miCrographs. A: Anterior body region of an ovoviviparous female. B: CutiCle of male, showing amphid. C: BuCCal Cavity of a female showing paired rhabdions in buCCal Cavity. D: BuCCal Cavity of a female, showing dentiCles in buCCal Cavity. E: Posterior body region of pharynx, Cardia, and anterior body region of intestine of male. F: Vulva region. Arrow shows position of vulva.
FIGURE 1. Bendiella vivipara n in Two new ovoviviparous species of the family Selachinematidae and Sphaerolaimidae (Nematoda, Chromadorida & Monhysterida) from the northern South China Sea
FIGURE 1. Bendiella vivipara n. sp. A: Viviparous female. Total body. B: Anterior body region of male. C: Anterior body region of female. D: Posterior body region of female. E: Posterior body region of male. F: CloaCal region with spiCule, gubernaCulum, and three papillose preCloaCal supplements.
FIGURE 5. Parasphaerolaimus jintiani n in Two new ovoviviparous species of the family Selachinematidae and Sphaerolaimidae (Nematoda, Chromadorida & Monhysterida) from the northern South China Sea
FIGURE 5. Parasphaerolaimus jintiani n. sp. Light miCrographs. A: Anterior body region of viviparous female. B: Male head. C: Amphid of male. D: Lateral longitudinal unstriated band (arrow) on CutiCle. E: SpiCular apparatus. F: Female posterior end, showing vulva region (arrow).
FIGURE 4. Parasphaerolaimus jintiani n in Two new ovoviviparous species of the family Selachinematidae and Sphaerolaimidae (Nematoda, Chromadorida & Monhysterida) from the northern South China Sea
FIGURE 4. Parasphaerolaimus jintiani n. sp. A: Entire male, showing lateral longitudinal unstriated band on CutiCle. B: Entire female. C: Anterior body region of female. D: Male head. E: Female head. F: Female posterior body region. G: Male posterior body region.
Fig. 10 in Revision of the genus Cobbionema Filipjev, 1922 (Nematoda, Chromadorida, Selachinematidae)
Fig. 10. Maximum Likelihood phylogenetic tree of Selachinematidae Cobb, 1915 inferred from 18S rRNA data, using alignments based on secondary structure models using GTR GAMMA for unpaired sites and RNA7A for paired sites.
Fig. 8 in Revision of the genus Cobbionema Filipjev, 1922 (Nematoda, Chromadorida, Selachinematidae)
Fig. 8. Cobbionema acuminata sp. nov. A. Male paratype head region (ventral side to the right) (SMNH Type-9222). B. Surface view of male holotype head (ventral side to the right) (SMNH Type-9221). C. Anterior part of male holotype (ventral side to the right) (SMNH Type-9221). D. Caudal region of male holotype (SMNH Type-9221). E. Spicule. F. Crura. Scale bar = 20 µm.
Fig. 7 in Revision of the genus Cobbionema Filipjev, 1922 (Nematoda, Chromadorida, Selachinematidae)
Fig. 7. Cobbionema brevispicula sp. nov. Light micrographs. A. Stoma of male holotype showing stoma armament, arrow pointing to the left ventrosublateral tine (SMNH Type-9219). B. Anterior part of male holotype showing sphincter muscle surrounding the anterior end of posterior stoma chamber (arrow) (SMNH Type-9219). C. Anterior part of a female; arrow pointing to a mandible with heavily cuticularized basal knob (SMNH-182041). D. Cuticle showing no lateral ala (SMNH Type-9219). E. Male tail (SMNH Type-9219). F. Caudal region of male holotype showing spicule (SMNH Type-9219). G. Caudal region of male holotype showing crura (arrow) (SMNH Type-9219).
Fig. 12 in Revision of the genus Cobbionema Filipjev, 1922 (Nematoda, Chromadorida, Selachinematidae)
Fig. 12. Maximum Likelihood phylogenetic tree of Selachinematidae Cobb, 1915 inferred from 28S rRNA data, using alignments based on secondary structure models using GTR GAMMA for unpaired sites and RNA7A for paired sites.
Fig. 6 in Revision of the genus Cobbionema Filipjev, 1922 (Nematoda, Chromadorida, Selachinematidae)
Fig. 6. Cobbionema brevispicula sp. nov. A. Female head region (ventral side to the right) (SMNH-182041). B. Surface view of female head (ventral side to the right) (SMNH-182041). C. Surface view of the male holotype head (ventral side to the right) (SMNH Type-9219). D. Anterior part of male holotype (ventral side to the right) (SMNH Type-9219). E. Female caudal region (SMNH-182041). F–G. Male holotype caudal region (SMNH Type-9219). H. Spicule. I. Crura. Scale bar = 20 µm.
Fig. 4. Cobbionema cylindrolaimoides Schuurmans Stekhoven, 1950. A in Revision of the genus Cobbionema Filipjev, 1922 (Nematoda, Chromadorida, Selachinematidae)
Fig. 4. Cobbionema cylindrolaimoides Schuurmans Stekhoven, 1950. A. Female head region (ventral side to the left) (SMNH-179211). B. Surface view of female head (ventral side to the left) (SMNH-197211). C. Surface view of male head (ventral side to the right) (SMNH-179212). D. Anterior part of male (ventral side to the right) (SMNH-179212). E. Female mid body region showing anterior branch of the reproductive system and an egg (SMNH-179211). F. Dorsoventral view of spicules (SMNH-179213). G. Lateral view of spicules (SMNH-179214). H. Spicule. I. Crura. J. Female tail (SMNH-179211). Scale bar = 20 µm.
Fig. 3. Cobbionema acrocerca Filipjev, 1922. Light micrographs. A in Revision of the genus Cobbionema Filipjev, 1922 (Nematoda, Chromadorida, Selachinematidae)
Fig. 3. Cobbionema acrocerca Filipjev, 1922. Light micrographs. A. Female stoma showing stoma armament, arrow pointing to the left ventrosublateral tine (SMNH-179217). B. Anterior part of a female with arrow pointing to the sphincter muscle surrounding the anterior stoma chamber (SMNH-179217). C. Anterior part of a female with arrow showing the ampulla of the secretory-excretory system (SMNH-179218). D. Caudal region a male showing spicule. E. Caudal region of a male showing the crura (arrow) (SMNH-179218). F. Cuticle showing lateral ala (SMNH-179223). G. Nematode prey inside a female (arrow) (SMNH-179216). H. Male caudal region (SMNH-179217). I. Female caudal region (SMNH-179223).
Fig. 2. Cobbionema acrocerca Filipjev, 1922. A in Revision of the genus Cobbionema Filipjev, 1922 (Nematoda, Chromadorida, Selachinematidae)
Fig. 2. Cobbionema acrocerca Filipjev, 1922. A. Female head region (ventral side to the right) (SMNH-179223). B. Surface view of female head (ventral side to the right) (SMNH-179223). C. Surface view of male head (ventral side to the left) (SMNH-179217). D. Anterior part of male (ventral side to the left) (SMNH-179217). E. Female mid-body region showing anterior branch of the reproductive system and lateral ala (SMNH-179216). F. Female caudal region (SMNH-179216). G. Male caudal region (SMNH-179217). H. Spicule. I. Crura. Scale bar = 20 µm.
Fig. 1 in Revision of the genus Cobbionema Filipjev, 1922 (Nematoda, Chromadorida, Selachinematidae)
Fig. 1. Halichoanolaimus robustus (Bastian, 1865). Scanning electron micrographs. Abbreviations: a = anterior row of pointed projections; b = posterior row of pointed projections; c = field of distinct denticles; d = the three tines (one middorsal, two ventrosublateral). Scale bar = 25 µm.
Fig. 11 in New and known Halichoanolaimus de Man, 1886 species (Nematoda: Selachinematidae) from New Zealand's continental margin
Fig. 11. Halichoanolaimus pumilussp. nov. Light micrographs of holotype ♂ (NIWA 139250). A. Junction of pharynx and intestine, showing position of secretory-excretory gland (seg) and pseudocoelomocyte (pc). B. Mid-body cuticle, showing position of pore complexes (arrows). C. Cuticle near tail region, showing position of pore complexes (arrows). D. Spicular apparatus and precloacal supplements (numbered 1 to 3). Scale bar = 20 µm.
Fig. 9 in New and known Halichoanolaimus de Man, 1886 species (Nematoda: Selachinematidae) from New Zealand's continental margin
Fig. 9. Halichoanolaimus funestus sp. nov. Light micrographs of paratype ♀ (NIWA 139249). A. Cuticle in mid-body region showing arrangement of pore complexes. B. Cuticle near tail region showing arrangement of pore complexes. Scale bar = 10 µm.
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