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828 results for “ascidian”
FIGURE 5. Trididemnum hians stained with hemalum. A, B,C in Ascidians (Tunicata) of the French Guiana Expedition
FIGURE 5. Trididemnum hians stained with hemalum. A, B,C, three larvae; D, abdomen. Scale bar = 1 mm.
FIGURE 15. Corella minuta. A, B in Ascidians (Tunicata) of the French Guiana Expedition
FIGURE 15. Corella minuta. A, B, both sides of the body, scale bar= 5mm; C, detail of the stained branchial tissue.
FIGURE 8. Eudistoma repens. A in Ascidians (Tunicata) of the French Guiana Expedition
FIGURE 8. Eudistoma repens. A colony; B, pieces of other colonies; C, three larvae, scale bar = 0.2 mm; D, thorax; E contracted zooid; F, siphons. C to F stained with hemalum.
FIGURE 4. Didemnid larvae stained with hemalum. A in Ascidians (Tunicata) of the French Guiana Expedition
FIGURE 4. Didemnid larvae stained with hemalum. A, Didemnum duplicatum; B, Didemnum galacteum; C, Didemnum psammathodes; D, Polysyncraton amethysteum. Scale bars: A=0.5 mm; B=0.3 mm; C=0.2 mm; D=0.4 mm.
FIGURE 11. Distaplia bermudensis. A in Ascidians (Tunicata) of the French Guiana Expedition
FIGURE 11. Distaplia bermudensis. A, deck photo of a live colony; B stained larva, scale bar = 0.5 mm.
FIGURE 17. Botryllus pumilus n in Ascidians (Tunicata) of the French Guiana Expedition
FIGURE 17. Botryllus pumilus n. sp. stained with hemalum. A,B, two stages of bodies ventrally opened, scale bar = 1 mm; C, internal side of the gut loop; D, stomach caecum, scale bar = 0.3 mm; E, zooid.
FIGURE 3. Euherdmania fasciculata. A in Ascidians (Tunicata) of the French Guiana Expedition
FIGURE 3. Euherdmania fasciculata. A, colony; B, branchial sac; C, larva; D, stomach. Scale bars B =1 mm; C= 0.5 mm; D=1 mm.
FIGURE 2 in Ascidians (Tunicata) of the French Guiana Expedition
FIGURE 2. Polyclinum constellatum (stained with hemalum). A: branchial sac; B, zooid; C, larva. Scale bars: A–B=2.5 mm; C=0.25 mm.
FIGURE 7. Eudistoma carolinense. A in Ascidians (Tunicata) of the French Guiana Expedition
FIGURE 7. Eudistoma carolinense. A, colony; B, two larvae, scale 0.2mm, C, thorax, D, gut loop.B to D stained with hemalum.
FIGURE 9. Eudistoma vannamei. A in Ascidians (Tunicata) of the French Guiana Expedition
FIGURE 9. Eudistoma vannamei. A, colony; B, stained thorax; C, larva not stained. Scale bars: B=0.2 mm; C= 0.5 mm.
FIGURE 14. Ascidia curvata. A in Ascidians (Tunicata) of the French Guiana Expedition
FIGURE 14. Ascidia curvata. A, left side of the body removed from tunic. Body opened along the ventral line and stained, scale bar = 5mm; C, tentacles and neural area; D, part of the dorsal lamina.
FIGURE 6. Eudistoma alvearium. A in Ascidians (Tunicata) of the French Guiana Expedition
FIGURE 6. Eudistoma alvearium. A: colonies; B, stained gut loop with pyloric gland; C, gonad, D, larvae one stained with hemalum. Scale bars: A= 2cm; D= 0.3mm.
FIGURE 13. Ecteinascidia aranea n in Ascidians (Tunicata) of the French Guiana Expedition
FIGURE 13. Ecteinascidia aranea n. sp. A, part of a colony in formalin; B two zooids, scale bar=1 cm; C, zooid ventrally opened and stained; D, gonad; E, neural area.
FIGURE 16 in Ascidians (Tunicata) of the French Guiana Expedition
FIGURE 16. Botrylloides magnicoecus stained with hemalum: A, zooid, scale bar = 0.5mm, B, gut loop; C, stomach caecum.
FIGURE 3 in A new genus of Asterocheridae (Copepoda: Siphonostomatoida) ectoassociate of the ascidian Eudistoma vannamei Millar, 1977 (Polycitoridae) from Brazil
FIGURE 3. Setacheres eudistomus gen. et sp. nov. female (paratype: UFBA 1723). A, antenna; B, oral cone; C, mandible; D, maxillule; E, maxilla; F, maxilliped. Scale bars: A–F = 50 µm.
FIGURE 4 in A new genus of Asterocheridae (Copepoda: Siphonostomatoida) ectoassociate of the ascidian Eudistoma vannamei Millar, 1977 (Polycitoridae) from Brazil
FIGURE 4. Setacheres eudistomus gen. et sp. nov. female (paratype: UFBA 1723). A, leg 1; B, leg 2; C, leg 3; D, leg 4; E, leg 5. Scale bars: A–D = 50 µm; E = 10 µm.
FIGURE 2 in A new genus of Asterocheridae (Copepoda: Siphonostomatoida) ectoassociate of the ascidian Eudistoma vannamei Millar, 1977 (Polycitoridae) from Brazil
FIGURE 2. Setacheres eudistomus gen. et sp. nov. female (paratype: UFBA 1723). A, body, dorsal view; B, urosome; C, antennule; D, rostrum. Scale bars: A = 300 µm; B = 250 µm; C = 100 µm; D = 50 µm.
FIGURE 14. A in Ascidian fauna (Tunicata, Ascidiacea) of subantarctic and temperate regions of Chile
FIGURE 14. A, Pyura chilensis, group of individuals (with some Asterocarpa humilis); B, dissected individual, branchial sac taken out; C, Pyura legumen, whole individual; D, close up of an oral siphon; D, siphonal spines. Scale bars: A, 5 cm, B, 1 cm, C, 2 cm, D, 0.5 mm, E, 20 µm.
FIGURE 11. Polyzoa minor. A in Ascidian fauna (Tunicata, Ascidiacea) of subantarctic and temperate regions of Chile
FIGURE 11. Polyzoa minor. A, colony; B, zooid dissected; C, left side of the body without branchial sac; D, close-up of hermaphrodite gonads from the right side of the body; E, larva. Images B–D are of stained material. Scale bars: A, 5 mm, B, C, 1 mm, D, 0.15 mm, E, 0.2 mm.
FIGURE 8. Asterocarpa humilis. A in Ascidian fauna (Tunicata, Ascidiacea) of subantarctic and temperate regions of Chile
FIGURE 8. Asterocarpa humilis. A, some specimens on Pyura chilensis (orange papillae belong to P. chilensis tunic); B, close up of the siphons (a colony of Diplosoma listerianum grows on the tunic); C, dissected individual; D, close up of the digestive loop, branchial sac removed; E, gonads of the right-hand side, branchial sac removed. The specimens in C–E have been stained. Scale bars: A, 2 cm, B, 1 cm, C, 1 cm, D, E, 1 cm.
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