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FIGURE 6 in Convolutriloba macropyga sp. nov., an uncommonly fecund acoel (Acoelomorpha) discovered in tropical aquaria

FIGURE 6. Convolutriloba macropyga sp. nov.; photomicrographs of living specimens. A. Dorsal view of female copulatory organ with two bursal nozzles. Black arrowheads point to bursal nozzles. B. Dorsal view of female copulatory organ with three bursal nozzles. Black arrowheads point to bursal nozzles.

FIGURE 1 in Convolutriloba macropyga sp. nov., an uncommonly fecund acoel (Acoelomorpha) discovered in tropical aquaria

FIGURE 1. Convolutriloba macropyga sp. nov.; photomicrographs of living, non-anaesthetized, non-squeezed specimens. A. Dorsal view of a large sub-adult with asexual buds and multiple median caudal lobes. B. Ventral view of smaller sub-adult exhibiting the characteristic "capturing funnel" leading to the mouth. Visible are the maturing false seminal vesicles terminating at the male gonopore forward of the central red-pigment spot. C. Dorsal view of an immature, asexually-produced progeny showing the characteristic two rounded lateral caudal lobes and single, longer, slender median caudal lobe.

FIGURE 5 in Convolutriloba macropyga sp. nov., an uncommonly fecund acoel (Acoelomorpha) discovered in tropical aquaria

FIGURE 5. Convolutriloba macropyga sp. nov.; reconstructions to show ventral body-wall musculature. For clarity just a few muscles are shown. Scale bar: 1 mm. A. All muscle components. B. Circular muscles. C. U-shaped muscles and longitudinal cross-over muscles. D. Special pore muscles and longitudinal muscles.

FIGURES 26–31 in Description of three new species of Neoperla (Plecoptera: Perlidae) and a historical review of tropical Southeast Asian Perlidae

FIGURES 26–31. Neoperla yentu sp. nov. nymphal mouthparts. (26) Labrum. Scale bar = 0.5 mm. (27) Labium. Scale bar = 1 mm. (28 & 29) Left and right mandibles. Scale bar = 0.5 mm. (30) Right maxilla. Scale bar = 1 mm. (31) Tip of right maxilla. Scale bar = 0.5 mm.

FIGURES 16–24 in Description of three new species of Neoperla (Plecoptera: Perlidae) and a historical review of tropical Southeast Asian Perlidae

FIGURES 16–24. Neoperla yentu sp. nov. (16) Male head and pronotum. Scale bar = 0.5 mm. (17 & 18) Male right forewing and hindwing. Scale bar = 3 mm. (19) Male dorsal terminalia. Scale bar = 0.5 mm. (20) Female ventral terminalia. Scale bar = 0.5 mm. (21 & 22) Everted lateral and ventral aedeagus. Scale bar = 1 mm. (23 & 24) Female vagina and egg. Scale bar = 0.2 mm. M = micropyle.

FIGURES 7–15 in Description of three new species of Neoperla (Plecoptera: Perlidae) and a historical review of tropical Southeast Asian Perlidae

FIGURES 7–15. Neoperla tamdao sp. nov. (7) Male head and pronotum. Scale bar = 0.5 mm. (8 & 9) Male right forewing and hindwing. Scale bar = 2 mm. (10) Male dorsal terminalia. Scale bar = 0.5 mm. (11) Female ventral terminalia. Scale bar = 0.5 mm. (12 & 13) Everted lateral and dorsal aedeagus. Scale bar = 0.5 mm. (14) Female vagina. Scale bar = 0.2 mm.(15) Lateral egg. Scale bar = 0.1 mm. Micropyles arrowed.

FIGURES 1–6 in Description of three new species of Neoperla (Plecoptera: Perlidae) and a historical review of tropical Southeast Asian Perlidae

FIGURES 1–6. Neoperla sungi sp. nov., male adult. (1) Head and pronotum. Scale bar = 0.5 mm. (2 & 3) Right forewing and hindwing. Scale bar = 2 mm. (4) Dorsal terminalia. Scale bar = 0.5 mm. (5 & 6) Lateral and ventral aedeagus. Scale bar = 0.5 mm. b = bulb, t = tube.

FIGURE 5 in Caudacalanus (Copepoda, Calanoida): a new benthopelagic genus from the abyss of the tropical South Atlantic and Southern Ocean *

FIGURE 5. Caudacalanus vicinus gen. et sp. nov. Female, holotype. A, antenna; B, mandible, gnathobase; C, mandible palp; D, maxillule, a, praecoxal arthrite; b, coxal epipodite; c, coxal endite; d, endopodite; e, exopodite; E, maxilla; F, maxilliped, detail of endopod from paratype; G, P1. Scale bars 0.1 mm.

FIGURE 3 in Caudacalanus (Copepoda, Calanoida): a new benthopelagic genus from the abyss of the tropical South Atlantic and Southern Ocean *

FIGURE 3. Caudacalanus mirus gen. et sp. nov. Female, holotype except F. A, antennule, articulated segments 1–11 (ancestral segments I–XIV), dotted setae are additions from paratype; B, antennule, articulated segments 12–20 (ancestral segments XV–XXIII); C, antennule, articulated segments 21–25 (ancestral segments XXIV–XXVIII); D, antennule, articulated segments 2325 (ancestral segments XXVI–XXVIII); E, P1; F, P1 (from paratype), terminal part of exopod segment 3; G, P2; H, P3; I, P4. Scale bars 0.1 mm.

FIGURE 4 in Caudacalanus (Copepoda, Calanoida): a new benthopelagic genus from the abyss of the tropical South Atlantic and Southern Ocean *

FIGURE 4. Caudacalanus vicinus gen. et sp. nov. Female. A, habitus, dorsal; B, habitus, lateral; C, rostrum, ventral; D, urosome, ventral; E, urosome, lateral; F, anal somite and caudal rami, dorsal; G, antennule, articulated segments 1–10 (ancestral segments I–XIII); H, articulated segments 11–16 (ancestral segments XIV–XIX); I, antennule, articulated segments 17–22 (ancestral segments XX–XXV); K, antennule, articulated segments 2325 (ancestral segments XXVI– XXVIII); L, P2; M, P3; N, P4. E from paratype, other figures, holotype, dotted setae are additions from paratype. Scale bars 0.1 mm.

FIGURE 1 in Caudacalanus (Copepoda, Calanoida): a new benthopelagic genus from the abyss of the tropical South Atlantic and Southern Ocean *

FIGURE 1. Caudacalanus mirus gen. et sp. nov. Female. A, habitus, dorsal; B, habitus, lateral; C, rostrum, lateral; D, rostrum, ventral; E, prosome, posterior corners, dorsal; F, urosome, dorsal; G, urosome, lateral; H, prosome, posterior corners and genital somite, dorsal; I, prosome, posterior corners and genital doublesomite, lateral; K, genital doublesomite, ventral. (C, E–G), paratype, other figures holotype. Scale bars 0.1 mm.

FIGURE 2 in Two new jellyfishes (Cnidaria: Scyphozoa) from tropical Australian waters

FIGURE 2. Netrostoma nuda, sp. nov., holotype. A, Exumbrellar view; note large central knob and lack of papillae. B, Subumbrellar view; note presence of thick appendages on oral plate, but lack of appendages between the mouths.

FIGURE 1 in Two new jellyfishes (Cnidaria: Scyphozoa) from tropical Australian waters

FIGURE 1. Sanderia pampinosus, sp. nov. A, Holotype, exumbrellar view. B, Exumbrellar papillae, paratype Z4748. C, Gastro-gonadal pouch, showing gastric filaments surrounded by ring of gonadal papillae.

FIGURE 4 in A new stalked species of Polycarpa (Tunicata: Ascidiacea) from deeper waters of the tropical Western Pacific and in situ observations on sympatric species

FIGURE 4. Three stalked solitary ascidians from northern Indonesia. (A) Translucent specimen of unknown species; (B) Pterygascidia mirabilis; (C, D) specimen with enlarged oral siphon.

FIGURE 2 in A new stalked species of Polycarpa (Tunicata: Ascidiacea) from deeper waters of the tropical Western Pacific and in situ observations on sympatric species

FIGURE 2. Polycarpa urmeli sp.nov. (A) Holotype opened along ventral mid line, branchial sac removed; (B) branchial tentacles, prepharyngeal band and dorsal tubercle; (C) neural gland, ganglion and dorsal tubercle as seen through transparent body wall from the outside; (D) gonad.

FIGURE 1 in A new stalked species of Polycarpa (Tunicata: Ascidiacea) from deeper waters of the tropical Western Pacific and in situ observations on sympatric species

FIGURE 1. Polycarpa urmeli sp.nov. Images of living specimens in their natural environment. (A) Specimen with widely open branchial and atrial aperture; (B-D) various views through atrial aperture onto branchial sac and anus, and into peribranchial cavity; (E) view through the branchial aperture onto opening of the branchial sac surrounded by tentacles; (F) Specimen with second ascidian species attached to its dorsal surface; (G) small eel trapped between body wall and branchial sac of same specimen; (H) spider crab (Maiidae) and feather-star (Crinoidea) as epibionts.

FIGURE 3 in A new stalked species of Polycarpa (Tunicata: Ascidiacea) from deeper waters of the tropical Western Pacific and in situ observations on sympatric species

FIGURE 3. Polycarpa urmeli sp.nov. (A) Formalin preserved specimen; (B) detail of the branchial sac between the most ventral fold and the endostyle; (C) dorsal lamina. (B and C – stained with toluydine blue)

FIGURE 1. Bostrichobranchus crosnieri n in A new species of Bostrichobranchus (Ascidiacea, Molgulidae) from the eastern tropical Atlantic

FIGURE 1. Bostrichobranchus crosnieri n.sp. A, B, right and left sides of a body without tunic, scale bar = 2cm; C, meshes of the branchial tissue.

FIGURE 2. Bostrichobranchus crosnieri n in A new species of Bostrichobranchus (Ascidiacea, Molgulidae) from the eastern tropical Atlantic

FIGURE 2. Bostrichobranchus crosnieri n.sp. A, body dissected along the ventral line, branchial sac removed, stained with hemalum; B, right side of a specimen devoid of tunic to show the gonad in transparency; C, whole branchial tissue removed from the body and stained with hemalum.

FIGURE 3. Bostrichobranchus crosnieri n in A new species of Bostrichobranchus (Ascidiacea, Molgulidae) from the eastern tropical Atlantic

FIGURE 3. Bostrichobranchus crosnieri n.sp. A dissected body, branchial sac removed; B, detail of a part of the gonad with testis rosettes; C, neural area with a tentacle. Scale bars: A = 10mm; B = O.4mm; C = 0.5mm.