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FIGURE 11 in Four new species of free-living nematodes from shallow continental shelf of Portugal

FIGURE 11. Odontophora sinapophysis sp. n. paratype female: (A) anterior end (cephalic and subcephalic arrangement, buccal cavity and amphideal fovea), (B) vulva region (mass of sperm), (C) reproductive system, (D) tail.

FIGURE 4 in A new free-living marine nematode, Polkepsilonema arabicensis sp. n. (Desmodorida: Epsilonematidae), from Lakshadweep, India

FIGURE 4. Polkepsilonema arabicensis sp. n. photomicrographs of the cephalic capsule of a) holotype, b) paratype (WN2693), c) paratype (WN2694); d) paratype (WN2695); e) & f) paratype male (WN2691) at different focus. Scale bar: a–f = 10 µm.

FIGURE 1 in A new free-living marine nematode, Polkepsilonema arabicensis sp. n. (Desmodorida: Epsilonematidae), from Lakshadweep, India

FIGURE 1. Polkepsilonema arabicensis sp. n. collection site (marked in triangle) at Agatti island, Lakshadweep, India.

FIGURE 3 in A new free-living marine nematode, Polkepsilonema arabicensis sp. n. (Desmodorida: Epsilonematidae), from Lakshadweep, India

FIGURE 3. Polkepsilonema arabicensis sp. n. photomicrographs of a) holotype male, b) paratype female (WN2692), c) paratype female (WN2693); holotype d) spicule & e) gubernaculum (lateral view); f) cuticular anastomoses; g) cuticular structure and spines at body curvatures of holotype; h) straight ambulatory setae marked with arrows of holotype; i) copulatory thorns of paratype male (WN2691); j) dorsal and ventrosublateral teeth of paratype (WN2694); k) hyaline outer layer as spiny projections at curvature level of paratype (WN2695); l) straight ambulatory setae of paratype (WN2695); m) copulatory thorns of holotype; n) bisinous ambulatory setae of paratype (WN2693). Scale bar: a & b = 50 µm, c = 20 µm, d–n = 10 µm.

FIGURE 2 in A new free-living marine nematode, Polkepsilonema arabicensis sp. n. (Desmodorida: Epsilonematidae), from Lakshadweep, India

FIGURE 2. Polkepsilonema arabicensis sp. n. habitus of a) holotype male (WN2690) and b) paratype female (WN2692). Anterior end of c) holotype, d) paratype female (WN2692) and e) juvenile paratype (WN2694). f) spicule, gubernaculum (lateral view) and tail of holotype, g) copulatory thorns of holotype, h) & i) fine setae at 1st and 2nd body curvatures, j) vulval morphology. ppv: pars proximalis vaginae, prv: pars refringens vaginae. Scale bar: a & b = 50 µm, c–j = 10 µm.

FIGURE 6. S. conicauda n in Two new free-living nematode species (Comesomatidae) from the continental slope of New Zealand, with keys and notes on distribution

FIGURE 6. S. conicauda n. sp. A. Male posterior body region showing copulatory apparatus. B. Female posterior body region. C. Female mid-body and posterior body regions showing vulva, genital branches, and intracellular inclusions in gut wall. Scale bar: A, B = 30 Μm; C = 100 Μm.

FIGURE 2. V. a u r a t a n in Two new free-living nematode species (Comesomatidae) from the continental slope of New Zealand, with keys and notes on distribution

FIGURE 2. V. a u r a t a n. sp. Male. A. Lateral view of neck region. B. Lateral surface view of head. C. Ventral view of head showing buccal cavity and teeth. D. Entire body. Scale bar: A = 40 Μm; B, C = 25 Μm; D = 290 Μm.

FIGURE 3 V. a in Two new free-living nematode species (Comesomatidae) from the continental slope of New Zealand, with keys and notes on distribution

FIGURE 3 V. a ur a t a n. sp. A. Male posterior body region showing copulatory apparatus B. Female posterior body region showing chords. C. Mid-region of female body showing vulva and genital branches. Scale bar: A, B = 50 Μm; C = 145 Μm.

FIGURE 1 in Two new free-living nematode species (Comesomatidae) from the continental slope of New Zealand, with keys and notes on distribution

FIGURE 1. Map of New Zealand showing bathymetric contours and study sites on (A) Challenger Plateau (top left panel) and (B) Chatham Rise (bottom panel), including sites sampled in 2001 (empty circles) and 2007 (filled circles). Site 10 is the type locality.

FIGURE 5. S. conicauda n in Two new free-living nematode species (Comesomatidae) from the continental slope of New Zealand, with keys and notes on distribution

FIGURE 5. S. conicauda n. sp. A. Lateral view of male head. B. Lateral view of male head. C. Lateral view of female head. D. Lateral view of male anterior body region. E. Entire male. Scale bar: A, B, C = 20 Μm; D = 30 Μm, E = 100 Μm.

FIGURE 4. V. a u r a t a n in Two new free-living nematode species (Comesomatidae) from the continental slope of New Zealand, with keys and notes on distribution

FIGURE 4. V. a u r a t a n. sp. A. Lateral view of juvenile anterior body region. B. Lateral view of juvenile posterior body region showing chords. C. Lateral view of female anterior body region showing amphid and chords. D. Female mid-body region showing chords. Scale bars: A, B, C, D = 25 Μm.

FIGURE 6 in One new genus and two new free-living nematode species (Desmodorida, Desmodoridae) from the continental margin of New Zealand, Southwest Pacific Ocean

FIGURE 6. Pseudonchus virginiae sp. n. A: Lateral view of male anterior region; B: lateral view of male head showing buccal cavity; C: lateral view of female head; D: female tail. Scale bar = 30 Μm.

FIGURE 7 in One new genus and two new free-living nematode species (Desmodorida, Desmodoridae) from the continental margin of New Zealand, Southwest Pacific Ocean

FIGURE 7. Pseudonchus virginiae sp. n. Light micrographs. A: Lateral view of female head showing anterior portion of buccal cavity and teeth (optical section); B: lateral surface view of female head, showing multispiral amphideal fovea and cuticle striations; C: lateral surface view of male head showing cryptocircular amphideal fovea; D: lateral view of male middle body region showing lateral chord with granular inclusions. Scale bar: A, B and C = 20 Μm; D = 27 Μm.

FIGURE 4 in One new genus and two new free-living nematode species (Desmodorida, Desmodoridae) from the continental margin of New Zealand, Southwest Pacific Ocean

FIGURE 4. Onepunema enigmaticum gen. et sp. n. Light micrographs. A: Right lateral view of female head, showing unusual arrangement of head sensillae, cuticle annulations, and circular amphideal aperture; B: cross-section view of female head, showing thickened cuticle of main head region, reduced buccal cavity, and extended labial region; C: male mid-body region showing anterior (top) and posterior (bottom) testes; D: cross-section view of male middle body region, showing two types of cells in intestinal epithelium with numerous round inclusions; E: spicule. Arrows point towards the testes. Scale bar: A and B = 10 Μm; C = 35 Μm; D = 20 Μm; E = 16 Μm.

FIGURE 5 in One new genus and two new free-living nematode species (Desmodorida, Desmodoridae) from the continental margin of New Zealand, Southwest Pacific Ocean

FIGURE 5. Pseudonchus virginiae sp. n. A: Entire male in cross-section view; B: lateral view of male posterior region; C: female reproductive system. Scale bar: A = 150 Μm; B and C = 53 Μm.

FIGURE 3 in One new genus and two new free-living nematode species (Desmodorida, Desmodoridae) from the continental margin of New Zealand, Southwest Pacific Ocean

FIGURE 3. Onepunema enigmaticum gen. et sp. n. A: Entire male in cross-section view showing position and arrangement of testes; B: posterior male region, showing spicules and pre-cloacal supplements; C: female reproductive system; D: female tail, with details of glands and pores. Scale bar: A = 60 Μm; B and C = 30 Μm; D = 20 Μm.

FIGURE 2 in One new genus and two new free-living nematode species (Desmodorida, Desmodoridae) from the continental margin of New Zealand, Southwest Pacific Ocean

FIGURE 2. Onepunema enigmaticum gen et sp. n. A: Male anterior region; B: male anterior region showing amphideal aperture and position of glands and pores; C: female anterior region. Scale bar = 35 Μm.

FIGURE 1 in One new genus and two new free-living nematode species (Desmodorida, Desmodoridae) from the continental margin of New Zealand, Southwest Pacific Ocean

FIGURE 1. Onepunema enigmaticum gen. et sp. n. A: head region, surface view; B: detail of fovea- (outer line) and amphideal aperture (inner line); C: head region, cross-section view; D: cloacal region with right spicule, gubernaculum, and pre-, para- and post-cloacal setae; E: right spicule; F: left spicule and gubernaculum; G: gubernaculum, right hand side view; H: gubernaculum, left hand side view. Scale bar = 20 Μm.

FIGURE 5 in Four new species of free-living marine nematodes of the family Comesomatidae (Nematoda: Araeolaimida) from coast of Vietnam

FIGURE 5. Dorylaimopsis brevispiculata sp. n. A: Entire male; B: Entire female; C: Male head; D: Cardial region of male; E: Spicular apparatus; F: Male tail; G: Female tail. Scale bars: A, B—150 µm; D—70 µm; G—50 µm; F—40 µm; C—15 µm.

FIGURE 2 in Four new species of free-living marine nematodes of the family Comesomatidae (Nematoda: Araeolaimida) from coast of Vietnam

FIGURE 2. Setosabatieria orientalis sp. n. A: Entire male; B: Entire female; C: Male head; D: Vulva region; E: Cardial region of male; F: Male tail; G: Female tail; H: Spicular apparatus. Scale bars: A, B—100 µm; D, G—50 µm; E, F—30 µm; H—20 µm; C—10 µm.