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23 results for “Petta”
FIGURE 10. Petta alissoni n in Pectinariidae (Annelida, Terebelliformia) from off southeastern Brazil, southwestern Atlantic
FIGURE 10. Petta alissoni n. sp. (Paratype 2, ZUEC Pol 21343), SEM, (A). Entire worm, right ventro-lateral view; (B). Close up of the anterior end, ventral view; (C). Close up of the cirri of the ventral lobe of segment 2; (D). Notochaetae; (E). Branchiae; (F). Scaphe, dorsal view, arrows point to scaphal hooks. Numbers refer to segments; bt = buccal tentacles; cr = cirri of ventral lobe of segment 2; cv = cephalic veil; tc1 and tc2 = tentacular cirri of segments 1 and 2, respectively.
FIGURE 9. Petta alissoni n in Pectinariidae (Annelida, Terebelliformia) from off southeastern Brazil, southwestern Atlantic
FIGURE 9. Petta alissoni n. sp. (Paratype 7, ZUEC Pol 7890), (A). Anterior end, ventral view; (B, C). Close ups of the anterior end, ventral and right lateral views, respectively; (D, E) Scaphe, ventral view, under progressively higher magnifications.
FIGURE 8. Petta alissoni n in Pectinariidae (Annelida, Terebelliformia) from off southeastern Brazil, southwestern Atlantic
FIGURE 8. Petta alissoni n. sp. (Holotype, ZUEC Pol 7891), (A–C). Anterior end, ventral view, under progressively higher magnifications; (D). Posterior end, ventral view; (E–G). Close ups of the anterior end, right lateral, dorsal and left lateral views, respectively, arrows point to branchiae; (H–J). scaphe, left lateral, dorsal and ventral views, respectively. Numbers refer to segments; bt = buccal tentacles; cr = cirri of ventral lobe of segment 2; cv = cephalic veil; tc1 and tc2 = tentacular cirri of segments 1 and 2, respectively.
FIGURE 13. Petta williamsonae n in A revision of the genus Petta Malmgren, 1866 (Annelida: Pectinariidae), with two new species from deep waters of southeastern Australia, and comments on phylogeny of the family
FIGURE 13. Petta williamsonae n. sp. Methyl green stained body of holotype (AM W.50667): A. Ventral view of anterior end; B. Lateral view of anterior end; C. Close-up view of right branchiae 1–2 and dorso-lateral pad on segment 5, in lateral view; D. Close-up view of anterior margin on cephalic veil, in ventral view; E. Close-up ventral view of left lobes on segments 1–3; F. Close-up view of left branchiae; G. Dorsal view of posterior end. H. Ventro-lateral view of posterior end, showing lobes on lateral margin of scaphe; I. Dorso-lateral view of posterior end. Abbreviations: ac, anal cirrus; an, anus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; dlp, dorso-lateral pad; dms, dorsal margin of scaphe; hb, hump of branchia; lb, lamellae of branchia; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet.
FIGURE 12 in A revision of the genus Petta Malmgren, 1866 (Annelida: Pectinariidae), with two new species from deep waters of southeastern Australia, and comments on phylogeny of the family
FIGURE 12. Line drawings of Petta williamsonae n. sp. Holotype (AM W.50667): A. Dorso-lateral view of anterior end; B. Ventral view of anterior end; C. Lateral ear-shaped lobe adjacent to the dorsal base of cephalic veil; D. Close-up view of branchia; E. Ventral view of posterior end; F. Dorso-lateral view of posterior end; G. Uncinus; H. Notochaeta from anterior row; I. Notochaeta from posterior row. Abbreviations: ac, anal cirrus; an, anus; ap, anterior peg; br, branchiae; bt, buccal tentacles; cv, cephalic veil; ct, chaetiger; dlp, dorso-lateral pad; dms, dorsal margin of scaphe; hb, hump of branchia; lb, lamellae of branchia; lel, lateral ear-shaped lobe; mat, major teeth; mit, minor teeth; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet.
FIGURE 5. Petta pusilla Malmgren, 1866 in A revision of the genus Petta Malmgren, 1866 (Annelida: Pectinariidae), with two new species from deep waters of southeastern Australia, and comments on phylogeny of the family
FIGURE 5. Petta pusilla Malmgren, 1866. Methyl green stained body and chaetae (AM W.50333): A. Ventral view of anterior end; B. Lateral view of anterior end; C. Close-up view of anterior margin on cephalic veil, in dorsal view; D–G. Close-up view of notochaetae from segment 14; E. Notochaetae from posterior row; F–G. Notochaetae from anterior row; H–I. Uncini from segment 14. Abbreviations: br, branchiae; bt, buccal tentacles; cv, cephalic veil; dlp, dorso-lateral pad; lcv, lappets of cephalic veil; lel, lateral ear-shaped lobe; ll, lower lip; op, operculum; or, opercular rim; p, paleae; s, segment; tc, tentacular cirri; vl, ventral lappet.
FIGURE 8. Petta tenuis Caullery, 1944 in A revision of the genus Petta Malmgren, 1866 (Annelida: Pectinariidae), with two new species from deep waters of southeastern Australia, and comments on phylogeny of the family
FIGURE 8. Petta tenuis Caullery, 1944. Methyl green stained body and chaetae of syntype 2 (NBC ZMA.V.Pol. 1516): A. Ventral view of posterior end; B. Lateral view of posterior end, showing lobes on lateral margin of scaphe; C, F. Close-up view of notochaetae from anterior row, segment 14; D–E. Close-up view of notochaetae from posterior row, segment 14; G–H. Uncini, segment 14; I. Scaphal hooks. Abbreviations: ac, anal cirrus; dms, dorsal margin of scaphe; nec, neurochaetae; noc, notochaetae; s, segment; sc, scaphe; sh, scaphal hooks.
FIGURE 9 in A revision of the genus Petta Malmgren, 1866 (Annelida: Pectinariidae), with two new species from deep waters of southeastern Australia, and comments on phylogeny of the family
FIGURE 9. Line drawings of Petta investigatoris n. sp. Holotype (AM W.50672): A. Lateral view of entire body; B. Dorsolateral view of anterior end; C. Ventral view of anterior end; D. Ventral view of posterior end; E. Dorso-lateral view of posterior end, showing lobes on lateral margin of scaphe; F. Lateral ear-shaped lobe adjacent to the dorsal base of cephalic veil, ventral view; G. Close-up view of branchia; H. Uncinus; I. Notochaeta from anterior row; J. Notochaeta from posterior row. Abbreviations: ac, anal cirrus; an, anus; ap, anterior peg; br, branchiae; bt, buccal tentacles; cv, cephalic veil; dlp, dorso-lateral pad; dms, dorsal margin of scaphe; hb, hump of branchia; lb, lamellae of branchia; lel, lateral ear-shaped lobe; mat, major teeth; mit, minor teeth; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet.
FIGURE 4. Petta pusilla Malmgren, 1866 in A revision of the genus Petta Malmgren, 1866 (Annelida: Pectinariidae), with two new species from deep waters of southeastern Australia, and comments on phylogeny of the family
FIGURE 4. Petta pusilla Malmgren, 1866. Methyl green stained body of the holotype (SMNH T361): A. Ventral view of anterior end; B. Close-up view of right branchia, dorsal view; C. Dorso-lateral view of anterior end; D. Close-up view of cephalic veil, ventral view; E. Lateral ear-shaped lobe; F. Scaphal hooks; G. Dorsal view of posterior end; H. Ventro-lateral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe. Abbreviations: ac, anal cirrus; an, anus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; dms, dorsal margin of scaphe; hb, hump of branchia; lb, lamellae of branchia; lcv, lappets of cephalic veil; lel, lateral ear-shaped lobe; ll, lower lip; nec, neurochaetae; nep, neuropodium; noc, notochaetae; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet.
FIGURE 11 in A revision of the genus Petta Malmgren, 1866 (Annelida: Pectinariidae), with two new species from deep waters of southeastern Australia, and comments on phylogeny of the family
FIGURE 11. Chaetae of Petta investigatoris n. sp. Holotype (AM W.50672) A–C. Close-up view of notochaetae, segment 12; B. Tip of notochaeta from posterior row; C. Tips of notochaetae from anterior row; D–E. Uncini, segment 12.
FIGURE 10. Petta investigatoris n in A revision of the genus Petta Malmgren, 1866 (Annelida: Pectinariidae), with two new species from deep waters of southeastern Australia, and comments on phylogeny of the family
FIGURE 10. Petta investigatoris n. sp. Methyl green stained body and tube of the holotype (AM W.50672): A. Tube; B. Ventral view of entire body; C. Dorso-lateral view of entire body; D. Ventral view of anterior end; E. Dorso-lateral view of anterior end; F. Close-up view of left branchiae, in lateral view; G. Dorsal view of posterior end; H. Ventral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe; J. Scaphal hooks. Abbreviations: ac, anal cirrus; an, anus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; dms, dorsal margin of scaphe; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; nec, neurochaetae; noc, notochaetae; nop, notopodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet.
FIGURE 15 in A revision of the genus Petta Malmgren, 1866 (Annelida: Pectinariidae), with two new species from deep waters of southeastern Australia, and comments on phylogeny of the family
FIGURE 15. Maximum likelihood phylogenetic tree of the family Pectinariidae based on COI sequences (586 bp) using General -Time-Reversible (GTR) model, Gamma Distributed with Invariant sites (G+I), 1000 bootstrap replications. Numbers above nodes are bootstrap values, only values above 50 are shown.
FIGURE 14. Petta williamsonae n in A revision of the genus Petta Malmgren, 1866 (Annelida: Pectinariidae), with two new species from deep waters of southeastern Australia, and comments on phylogeny of the family
FIGURE 14. Petta williamsonae n. sp. SEM of paratype (AM W.51459). A. Lateral view of entire body; B. Ventral view of anterior end; C. Dorso-lateral view of anterior end; D. Close up of segments 1–3, in ventral view; E. Lateral view of posterior end; F-G. Close-up view of notochaetae, segment 10; H. Uncini from segment 10; I. Scaphal hooks. Abbreviations: ac, anal cirrus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; ct, chaetiger; dlp, dorso-lateral pad; dms, dorsal margin of scaphe; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet.
FIGURE 3. Petta pusilla Malmgren, 1866 in A revision of the genus Petta Malmgren, 1866 (Annelida: Pectinariidae), with two new species from deep waters of southeastern Australia, and comments on phylogeny of the family
FIGURE 3. Petta pusilla Malmgren, 1866. Tube and methyl green stained body of the holotype (SMNH T361): A. Tube; B. Lateral view of entire body; C. Ventral view of entire body; D. Dorsal view of anterior end. Abbreviations: br, branchiae; bt, buccal tentacles; cv, cephalic veil; dlp, dorso-lateral pad; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri.
FIGURE 7. Petta tenuis Caullery, 1944. Syntype 1 in A revision of the genus Petta Malmgren, 1866 (Annelida: Pectinariidae), with two new species from deep waters of southeastern Australia, and comments on phylogeny of the family
FIGURE 7. Petta tenuis Caullery, 1944. Syntype 1 (NBC ZMA.V.Pol. 1516): A. Tube; B. Latero-vental view of entire twisted body. Methyl green stained body of syntype 2 (NBC ZMA.V.Pol. 1516): C. Dorsal view of entire body; D. Ventral view of entire body; E. Ventral view of anterior end; F. Close-up view of cephalic veil, ventral view; G. Lateral view of anterior end; H. Closeup view of left branchiae 1–2, lateral view. Abbreviations: ac, anal cirrus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet.
FIGURE 2 in A revision of the genus Petta Malmgren, 1866 (Annelida: Pectinariidae), with two new species from deep waters of southeastern Australia, and comments on phylogeny of the family
FIGURE 2. Line drawings of Petta pusilla Malmgren, 1866. Holotype (SMNH T361): A. Ventral view of anterior end; B. Lateral view of anterior end; C. Dorsal view of posterior end, showing lobes on lateral margin of scaphe; D. Anterior view of notochaetae from posterior row; E. Latero-anterior view of notochaetae from anterior row; F. Uncinus; G. Distal parts of scaphal hooks. Abbreviations: ac, anal cirrus; ap, anterior peg; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; lel, lateral ear-shaped lobe; ll, lower lip; mat, major teeth; mit, minor teeth; nec, neurochaetae; noc, notochaetae; nop, notopodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet.
FIGURE 6 in A revision of the genus Petta Malmgren, 1866 (Annelida: Pectinariidae), with two new species from deep waters of southeastern Australia, and comments on phylogeny of the family
FIGURE 6. Petta pellucida (Ehlers, 1887). Types (MCZ ANNc-2559): A. Lateral view of entire twisted body; B. Tubes; C. Tube broken to reveal damaged body; D. Dorso-lateral view of posterior end; E. Scaphal hooks; F–G. Close-up view of notochaetae from anterior row, segment 14; H. Tip of notochaeta from posterior row, segment 14; I–J. Uncini, segment 14. Abbreviations: noc, notochaetae; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks.
Figure 2 from: Zhang J, Hutchings P (2021) A new species of Petta (Annelida, Pectinariidae), with comments on Petta assimilis McIntosh, 1885. ZooKeys 1067: 83-92. https://doi.org/10.3897/zookeys.1067.72596
Figure 2 Petta brevis sp. nov., holotype (SAM-A021260) A dorsal view of whole body B ventral view of whole body C ventral view of anterior end D dorsal view of anterior end E close up of left branchiae F dorso-lateral view of posterior end G ventral view of posterior end H close up of scaphal hooks. Abbreviations: af, anal flap (plate); an, anus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; dlp, dorso-lateral pad; dms, dorsal margin of scaphe; lel, lateral ear-shaped lobe; nec, neurochaetae; nep, neuropodium; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet.
Figure 3 from: Zhang J, Hutchings P (2021) A new species of Petta (Annelida, Pectinariidae), with comments on Petta assimilis McIntosh, 1885. ZooKeys 1067: 83-92. https://doi.org/10.3897/zookeys.1067.72596
Figure 3 Petta brevis sp. nov., SEM of paratype (SAMC-A094445) A ventral view of whole body B ventral view of anterior end C dorsal view of anterior end D ventral view of posterior end with distorted scaphe E notochaetae F close up of uncini. Abbreviations: af, anal flap (plate); an, anus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; dlp, dorso-lateral pad; mat, major teeth; nec, neurochaetae; nep, neuropodium; noc, notochaetae; nop, notopodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; vl, ventral lappet.
FIGURE 1 in A revision of the genus Petta Malmgren, 1866 (Annelida: Pectinariidae), with two new species from deep waters of southeastern Australia, and comments on phylogeny of the family
FIGURE 1. Type localities of all Petta species.
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