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6 results for “Polyzoa”
FIGURE 3. Polyzoa atlantica n in A new species of Polyzoa (Ascidiacea: Styelidae) from the Atlantic coast of N America, U. S. A.
FIGURE 3. Polyzoa atlantica n.sp. A zooid opened ventrally; branchial sac removed to show gonads, endocarps, and gut loop. B Gut loop of another zooid. C Tailed larva.
FIGURE 2. Polyzoa atlantica n in A new species of Polyzoa (Ascidiacea: Styelidae) from the Atlantic coast of N America, U. S. A.
FIGURE 2. Polyzoa atlantica n.sp. Zooid opened ventrally and stained with methylene blue to show the structure of the branchial sac. Note the presence of only three internal longitudinal vessels on each side of the branchial sac.
FIGURE 1. Polyzoa atlantica n in A new species of Polyzoa (Ascidiacea: Styelidae) from the Atlantic coast of N America, U. S. A.
FIGURE 1. Polyzoa atlantica n.sp. A and B a colony consisting of several zooids attached to the test of the solitary ascidian Molgula occidentalis. C zooids separated from the substrate.
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 10. Polyzoa iosune. A in Ascidian fauna (Tunicata, Ascidiacea) of subantarctic and temperate regions of Chile
FIGURE 10. Polyzoa iosune. A, image of a colony carpeting the substrate and overgrowing Aplidium peruvianum (whitish masses) exposed at low tide; B, close-up of the apical part of the zooids; C, mantle of two zooids, vision of the right side (left of the image) and ventral vision (right of the image); D, dissected zooid; E, same zooid without branchial sac; F, G, details of the branchial sac; H, close-up of hermaphrodite gonads from the right side of the zooid (endostyle is towards the upper-left of the image); I, larva. Images D–H are of stained material. Scale bars: A, 5 cm, B, C, 5mm, D, E, 2 mm, F, 1 mm, G, 0.2 mm, H, 1 mm, I, 0.2 mm.
FIGURE 12. Polyzoa opuntia. A in Ascidian fauna (Tunicata, Ascidiacea) of subantarctic and temperate regions of Chile
FIGURE 12. Polyzoa opuntia. A, colonies; B, zooid dissected without branchial sac (stained), inset shows magnification of gonads and endocarps on the left side. Scale bars: A, 2 cm, B, 1 cm.
ScienceDex guides
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International Brain Laboratory public data
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OpenNeuro
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