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47 results for “Pyura”
FIGURE 13. Pyura vannamei Monniot C., 1994. A. Preserved animal. B in Pyura (Tunicata: Ascidiacea: Pyuridae) on the coasts of Panama
FIGURE 13. Pyura vannamei Monniot C., 1994. A. Preserved animal. B. Right side of the animal with the tunic removed. C. Left side of the animal with the tunic removed. D. Dissected animal showing the pharynx. D. Dissected animal with the pharynx removed, showing the digestive and reproductive systems. Scale bar = 1 cm.
FIGURE 11 in Pyura (Tunicata: Ascidiacea: Pyuridae) on the coasts of Panama
FIGURE 11. Pyura lopezlegentilae sp. nov. A. Dissected view of the animal with the pharynx. B. Oral tentacles (stained). C. Anterior region with oral tentacles and dorsal tubercle (stained). D. Dissected view of the animal without the pharynx, showing the reproductive and digestive systems. E. Close up view of a blood vessel with antler-like spicules. F. Atrial siphon, anus and gonoduct.
FIGURE 10 in Pyura (Tunicata: Ascidiacea: Pyuridae) on the coasts of Panama
FIGURE 10. Pyura lopezlegentilae sp. nov. A. Left side of the animal without the tunic. B. Right side of the animal without the tunic. C. Siphonal spinules. D. Detail of body wall musculature over the left gonad. Scale bars A = 1 cm, C = 50 µm.
FIGURE 9 in Pyura (Tunicata: Ascidiacea: Pyuridae) on the coasts of Panama
FIGURE 9. Pyura lopezlegentilae sp. nov. A–D. Animals in the field. In B and C it is possible to see the yellow flap formed by the atrial siphon vellum.
FIGURE 6. Pyura lignosa Michaelsen, 1908. A in Pyura (Tunicata: Ascidiacea: Pyuridae) on the coasts of Panama
FIGURE 6. Pyura lignosa Michaelsen, 1908. A. Dissected animal showing the pharynx (stained). B. Dissected animal without the pharynx. C. Lining of the oral siphon. D. Stained anterior region showing oral tentacles and dorsal tubercle with meandering aperture (arrowhead). E. Detail of the atrial side of the dorsal region of the pharynx (stained). F. Detail of the oral tentacle (stained). G. Spinules in the oral siphon. Scale bar = 20 µm.
FIGURE 5. Pyura lignosa Michaelsen, 1908 A in Pyura (Tunicata: Ascidiacea: Pyuridae) on the coasts of Panama
FIGURE 5. Pyura lignosa Michaelsen, 1908 A. Animal in the field showing open siphons with red margins (arrowheads). B. External view of preserved animal. C. Right side, tunic removed. D. Left side, tunic removed. Scale bar = 1 cm.
FIGURE 1 in Pyura (Tunicata: Ascidiacea: Pyuridae) on the coasts of Panama
FIGURE 1. Pyura carmanae sp. nov. A. External view of holotype. B. Tunic removed, right side view. C. Tunic removed, left side view. D. Two animals with long and separate siphons. E. Surface of tunic showing tessellate pattern. Scale bar = 1 cm.
FIGURE 4 in Pyura (Tunicata: Ascidiacea: Pyuridae) on the coasts of Panama
FIGURE 4. Pyura imesa sp. nov. A. Dissected and stained holotype, without the pharynx (arrowheads pointing endocarps). B. Stained anterior region with the oral tentacles and dorsal tubercle (black arrowhead). C. Stained atrial siphon region, showing the vellum (white arrowheads), anus (black arrowhead) and left gonoducts (gray arrowhead). D. Detail of oral tentacle (stained). E. Detail of stigmata and parastigmata vessels in a stained pharynx. F. Detail of the digestive gland. G. Detail of the left gonad and endocarps along the descending intestine. Scale bar = 1 cm.
FIGURE 3 in Pyura (Tunicata: Ascidiacea: Pyuridae) on the coasts of Panama
FIGURE 3. Pyura imesa sp. nov. A. External view of animal. B. Right side of the holotype. C. Left side of the paratype. Scale bar = 1 cm.
FIGURE 2 in Pyura (Tunicata: Ascidiacea: Pyuridae) on the coasts of Panama
FIGURE 2. Pyura carmanae sp. nov. A. Dissected animal showing the pharynx (stained). B. Dissected animal with the pharynx removed, showing the digestive and reproductive systems. C. Anterior region with oral tentacles and dorsal tubercle (stained). D. Detail of the digestive gland. E. Dissected animal with separate siphons showing different intestine shape and the irregular endocarps (stained). F. Detail of the stigmata and parastigmatic vessels (stained pharynx). G. Atrial siphon showing the gonoducts and anus (stained).
FIGURE 7 in Pyura (Tunicata: Ascidiacea: Pyuridae) on the coasts of Panama
FIGURE 7. Pyura longispina sp. nov. A–B. Animals in the field. C. Lining of the oral siphon with spinules. D. External view of siphons with lobes and spinules in a preserved animal. E. Internal long spinules. F. Short spinules form the border of the siphon. G. Detail of oral siphon lining with spinules. H. Internal lining of the oral siphon. I. Internal lining of the oral siphon with white structures. Scale bars = 50 µm.
FIGURE 8 in Pyura (Tunicata: Ascidiacea: Pyuridae) on the coasts of Panama
FIGURE 8. Pyura longispina sp. nov. A. Right side of the animal without the tunic. B. Left side of the animal without the tunic. C. Deatil of the body wall showing musculature patterns and minute concretions. D. Anterior region (stained). E. Dissected animal showing the pharynx. F. Oral tentacle. G. Detail of the pharynx tissue. H. Rectum with endocarps and anus; left gonad and gonoduct. I. Dissected animal without the pharynx, showing the reproductive and digestive systems. J. Detail of the digestive gland. Scale bar = 1 cm.
FIGURE 6 in Pyura gangelion and Pyura beta sp. nov. (Ascidiacea: Pyuridae): an exotic and a new tunicate from the West Atlantic
FIGURE 6. Pyura gangelion (Savigny, 1816) from Brazil. A, B. Animal removed from the tunic, right and left sides respectively. C. Dissected animal showing the pharynx. D. Dissected animal (pharynx removed). E. Detail of the right side showing gonadal lobes, endocarps both on the gonads and along the heart. F. Detail of the left side showing the digestive gland, intestine, gonads and endocarps on the intestine wall and gonadal lobes. G. Stained pharynx. H. Detail of an oral tentacle. I. Extension of the tunic into the oral siphon with spines.
FIGURE 3 in Pyura gangelion and Pyura beta sp. nov. (Ascidiacea: Pyuridae): an exotic and a new tunicate from the West Atlantic
FIGURE 3. Pyura beta sp. nov. from Panama. A. Detail of the oral tentacle (stained). B. Stained peritubercular region forming a deep V with the dorsal tubercle aperture (arrowhead). C. Right gonad showing endocarps on the top of lobes and one long endocarp attached to the body wall on its dorsal side (stained). D. stained pharynx. E. Detail of the stigmata and parastigmatic vessels (stained pharynx). F. Detail of the dorsal languets (stained pharynx). G. Smooth anus (black arrowhead) and lobed gonoducts (white arrowheads) of the left gonad (stained). H. Detail of the digestive gland, showing small portions on the esophagus (arrowheads) and main portion.
FIGURE 5 in Pyura gangelion and Pyura beta sp. nov. (Ascidiacea: Pyuridae): an exotic and a new tunicate from the West Atlantic
FIGURE 5. Pyura gangelion (Savigny, 1816) from Brazil. A. View of preserved animal with tunic. B. External view of oral siphon with spinules on lobes. C. Detail of spinules under magnification. D, E. Animal removed from tunic, left and right side. F. Dissected animal (pharynx removed) showing main internal structures: muscle fibers, gonads, intestine and digestive gland. G. Pharynx removed and stained. H. Detail of pharynx showing parastigmatic vessels and stigmata. I. Stained anterior region with dorsal tubercle aperture. J. Anus (upper right aperture) and gonoducts (lower left).
FIGURE 2 in Pyura gangelion and Pyura beta sp. nov. (Ascidiacea: Pyuridae): an exotic and a new tunicate from the West Atlantic
FIGURE 2. Pyura beta sp. nov. from Panama. A. Right side of animal with the tunic removed. B. Left side of the same animal with the tunic removed. C. A dissected animal showing the pharynx and red musculature (animal freshly preserved). D. Same animal as in C with pharynx removed, showing the muscular, digestive and reproductive systems. Scale bar = 1 cm.
FIGURE 1 in Pyura gangelion and Pyura beta sp. nov. (Ascidiacea: Pyuridae): an exotic and a new tunicate from the West Atlantic
FIGURE 1. Pyura beta sp. nov. from Panama. A, B. Animals in the field. C. Tubercles surrounding the siphons. D. Detail of the surface of the tunic in B showing the tessellated pattern. Scale bar = 1 cm.
FIGURE 4 in Pyura gangelion and Pyura beta sp. nov. (Ascidiacea: Pyuridae): an exotic and a new tunicate from the West Atlantic
FIGURE 4. Pyura beta sp. nov. from Brazil. A. Animal attached to substrate in the field. B, C View of animal with tunicright and left side. D, E. Animal removed from tunic showing its strong muscle bands—left and right side. F. dissected animal showing right gonad. G. Dissected and stained animal (pharynx removed) with evident muscular bands. H. Anterior region. I. Pharynx removed and stained.
FIGURE 15. Pyura viarecta. A in New records of deep-sea ascidians (Tunicata, Ascidiacea) from the New Caledonia region
FIGURE 15. Pyura viarecta. A, body ventrally opened; B, same body, branchial sac removed. Scale bars = 1cm.
FIGURE 14. Pyura irregularis. A in New records of deep-sea ascidians (Tunicata, Ascidiacea) from the New Caledonia region
FIGURE 14. Pyura irregularis. A, branchial tissue; B, body ventrally opened; C, one specimen; D, oral tentacles and dorsal tubercle. Scale bars = 1cm.
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