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6 results for “Trochochaeta”
FIGURE 6 in First record of Trochochaeta japonica (Annelida: Spionidae) in Brazil with identification key to species of the genus
FIGURE 6. Adult morphology of T. Japonica from estuary of Santos, São Paulo (MIMB 33634). A–C, neurochaetae of chaetiger 7. A, frayed heavy spine from anterior row. B, capillary chaeta from posterior row. C, capillary chaeta from inferior tuft. D–G, neurochaetae of chaetiger 20. D, aristate spine, lateral view. E, aristate spine, frontal view. F, syringe-like spine. G, capillary chaeta from anterior tuft. H, right neuropodium of chaetiger 18, dorsal view, showing anterior group of capillary chaetae and protruded aristate spines alternating with mostly embedded syringe-like spines. Scale bars: A–H—50 µm.
FIGURE 5 in First record of Trochochaeta japonica (Annelida: Spionidae) in Brazil with identification key to species of the genus
FIGURE 5. Adult morphology of T. Japonica from estuary of Santos, São Paulo (MIMB 33634). A, head and chaetigers 1 and 2, frontal view, palps missing. B, head and chaetiger 1, ventral view. C, chaetiger 3, frontal view. D, chaetiger 4, frontal view. Scale bar: A–D—200 µm.
FIGURE 4 in First record of Trochochaeta japonica (Annelida: Spionidae) in Brazil with identification key to species of the genus
FIGURE 4. Adult morphology of T. Japonica from estuary of Santos, São Paulo (MNRJ P1463). A, neurochaetae of chaetiger 18: aristate spines (ar) with curved and flattened distal end having hirsute conveX side and bearing long pointed terminal process (broken in middle spine), and syringe-like spines (sy) mostly embedded into neuropodial lobe and only long pointed distal end protruding outside. B, paired papillae (pa) on ventral side of anterior abdominal chaetigers. Scale bars: A—10 µm. B—100 µm.
FIGURE 1. A in First record of Trochochaeta japonica (Annelida: Spionidae) in Brazil with identification key to species of the genus
FIGURE 1. A, map showing sampling sites of T. Japonica in the estuary of Santos, São Paulo, Brazil. B, map showing the type localities of Trochochaeta species (red numerals), and a new record of T. Japonica in Brazil (yellow 14): 1—T. multisetosa (Örsted, 1843), off Hveen (Ven) Island, Øresund Strait, Sweden. 2—T. carica (Birula, 1897), Gulf of Ob, Kara Sea, Russia. 3— T. watsoni (Fauvel, 1916), Parages de la Nouvelle-Écosse, off Nova Scottia, Atlantic Canada. 4—T. diverapoda (Hoagland, 1920), Philippines, Taratara Island, off western Samar. 5—T. orissae (Fauvel, 1932), off Puri, Orissa, East coast of India. 6—T. franciscana (Hartman, 1947), San Francisco Bay, California, USA. 7—T. cirrifera (Hartman, 1975), Gulf of Oman, Arabian Sea, Iran. 8—T. kirkegaardi Pettibone, 1976, West Africa, off Gold Coast, Ghana. 9—Trochochaeta sp. A Gilbert, 1984, Gulf of MeXico, USA. 10—T. pettiboneae Dean, 1987, Gulf of Maine, Maine, USA. 11—T. Japonica Imajima, 1989, off Koyahata, Sagami Bay, Honshu Island, Japan. 12—T. mexicana Hernández-Alcántara & Solís-Weiss, 2011, Guerrero coast, Pacific MeXico. 13—T. ankeae Bochert & Zettler, 2013, shelf off South Angola, south-west Atlantic. 14—T. Japonica, São Paulo and Bahia, Brazil.
FIGURE 3 in First record of Trochochaeta japonica (Annelida: Spionidae) in Brazil with identification key to species of the genus
FIGURE 3. Adult morphology of T. Japonica from estuary of Santos, São Paulo (MNRJ P1462). A, anterior end, dorsal view, palps missing, showing U-shaped nuchal organs on sides of caruncle, posterior border of chaetiger 1 and anterior border of chaetiger 2. B, anterior end, left lateral view, palps missing. C, chaetigers 2 and 3, left lateral view. D, neuropodia of chaetigers 3–5, left lateral view, showing frayed, flattened, distally pointed spines and capillary chaetae protruding from prominent neuropodial lobe of chaetiger 5. E, three groups of capillaries in notopodium of chaetiger 4, left lateral view. F, left neuropodium of chaetiger 18, dorsal view, showing anterior group of capillary chaetae and protruded aristate spines alternating with mostly embedded syringe-like spines. Abbreviations: an—anterior row of chaetae; ar—aristate spines; ca—caruncle; cap—capillary chaetae; fr—frayed spines; lo5—neuropodial lobe of chaetiger 5; me—neuropodial membrane; ne1–5— neuropodial postchaetal lamellae of chaetigers 1–5; no1–5—notopodial postchaetal lamellae of chaetigers 1–5; nu—nuchal organ; po—posterior row of chaetae; pr—prostomium; su—superior tuft of chaetae; s1, s2—borders of chaetigers 1 and 2; sy—syringe-like spines. Scale bars: A–C—100 µm. D, F—50 µm. E—20 µm.
FIGURE 2 in First record of Trochochaeta japonica (Annelida: Spionidae) in Brazil with identification key to species of the genus
FIGURE 2. Adult morphology of T. Japonica from estuary of Santos, São Paulo (MIMB 33634). A, 15 thoracic and some anterior abdominal chaetigers, ventral view, showing dark glandular pads on thoracic chaetigers 5–15. B, bundle of acicular spines from notopodium of chaetiger 40. Abbreviations: pr—prostomium; ch3, ch5, ch15—thoracic chaetigers 3, 5 and 15. Scale bars: A—500 µm. B—10 µm.
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