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16 results for “Megacalanus”
FIGURE 20. Megacalanus ohmani n in Revision of Family Megacalanidae (Copepoda: Calanoida)
FIGURE 20. Megacalanus ohmani n. sp. female: A, maxilliped; B, detail of bifurcate spinule from basis of maxilliped; C, leg 2; D, leg 3; E, leg 4; F, leg 5; G, dorsal view of antennule ancestral segments I–V showing hair sensilla (hs) and maculae cribrosae (ms). Scale bars represent 1.0 mm on figures A, C–G; 0.1 mm on remaining figures. Illustrated specimen from Indopac VIII, Stn, 6.
FIGURE 12. Megacalanus frosti n in Revision of Family Megacalanidae (Copepoda: Calanoida)
FIGURE 12. Megacalanus frosti n. sp. female: A, dorsal view; B, lateral view; C, lateral view of head; D, dorsal view of caudal ramus; E, antennule ancestral segments I–V (hs = hair sensillum, mc = macula cribrosa), dorsal view; F, antennule ancestral segments XIV–XV; G, antennule ancestral segments XVI–XVII. Scale bars represent: 1.0 mm on figures A–E, 0.1 mm on remaining figures. Illustrated specimen from Francis Drake III, Stn 4.
FIGURE 7. Megacalanus princeps Wolfenden, 1904 in Revision of Family Megacalanidae (Copepoda: Calanoida)
FIGURE 7. Megacalanus princeps Wolfenden, 1904 Female: A, dorsal view; B, lateral view; C, lateral view of anterior head; D, inner seta of maxilla praecoxal endite 2; E, seta of maxilla praecoxal endite 1 (and most of other setae on maxilla); F, antennule ancestral segments XIV–XV; G, antennule ancesstral segments XVI–XVII; H, antennule ancestral segments I–IV, dorsal view; I, hair sensilla (hs) and macula cribrosa (mc) on ancestral segment III; J, leg 1. Scale bars represent: 1.0 mm on figures A, B, H, J; 0.1 mm on remaining figures. Illustrated specimen from Oceanus Cr473, 100–866 m (A–C).
FIGURE 18. Megacalanus ohmani n in Revision of Family Megacalanidae (Copepoda: Calanoida)
FIGURE 18. Megacalanus ohmani n. sp. female antennule ancestral segments: A, ventral surface of segments I–XI; B, segments XII–XVII; C, segments XVIII–XXIII; D, segments XXIV–XXVIII; E, detail of aesthetasc (a), modified setae (ms) and macula cribrosa (mc) distally on segments XXV; F, detail of terminal part of antennule (a = aesthetasc, mc = macula cribrosa). Scale bars represent 1.0 mm on figures A–D; 0.1 mm on remaining figures. Illustrated specimen from Indopac VIII, Stn 6.
FIGURE 23. Megacalanus ohmani n in Revision of Family Megacalanidae (Copepoda: Calanoida)
FIGURE 23. Megacalanus ohmani n. sp. male right antennule ancestral segments: A, segment I–XII, arrow indicates 'clavate seta'; B, segments XIII–XVIII; C, segments XIX–XXVIII; D, detail of segments XIX–XX; E, detail of segments XXI–XXIII; F, detail of terminal part. Scale bars represent 1.0 mm figures A–C; 0.1 mm on remaining figures. Illustrated specimen from Indopac VIII, Stn 6.
FIGURE 22. Megacalanus ohmani n in Revision of Family Megacalanidae (Copepoda: Calanoida)
FIGURE 22. Megacalanus ohmani n. sp. male left antennule ancestral segments: A, segments I–VIII; B, segments IX–XV, note clavate seta on segment XI apparently knocked off but present in other specimens; C, segments XVI–XX; D, segments XXI–XXVIII. Scale bars represent 1.0 mm on figures A–D; 0.1 mm on figure E. Illustrated specimen from Indopac VIII, Stn 6.
FIGURE 21. Megacalanus ohmani n in Revision of Family Megacalanidae (Copepoda: Calanoida)
FIGURE 21. Megacalanus ohmani n. sp. male: A, dorsal view; B, lateral view of anterior head; C, lateral view of posterior corners of pedigerous somite 5; D, dorsal view of caudal ramus; E, posterior view of leg 5; F, distal inner corner of left exopod segment 2; G, distal inner corner of left exopod segment 2 of another specimen. Scale bars represent 1.0 mm on figures A, C, E; 0.1 mm on remaining figures. Illustrated specimen from Indopac VIII, Stn 6.
FIGURE 19. Megacalanus ohmani n in Revision of Family Megacalanidae (Copepoda: Calanoida)
FIGURE 19. Megacalanus ohmani n. sp. female: A, antenna; B, mandible; C, maxillule (mc = macula cribrosa); D, inner view of maxilla; E, detail of inner view of terminal part of maxilla (B = basal endite, Ri 1–4 = endopod segments 1–4); F, outer view of endopod of maxilla. Scale bars represent 1.0 mm on figure D; 0.1 mm on remaining figures. Illustrated specimen from Indopac VIII, Stn 6.
FIGURE 15. Megacalanus ericae n in Revision of Family Megacalanidae (Copepoda: Calanoida)
FIGURE 15. Megacalanus ericae n. sp. female: A, dorsal view; B, lateral view; C, lateral view of anterior head; D, ancestral segments I–V, dorsal view (hs = hair sensillum, mc = macula cribrosa); E, ancestral segments XV–XVI of antennule. Scale bar represents 1.0 mm on figures A, B, D; 0.1 mm on remaining figures. Illustrated specimen from OCN627.
FIGURE 17. Megacalanus ohmani n in Revision of Family Megacalanidae (Copepoda: Calanoida)
FIGURE 17. Megacalanus ohmani n. sp. female: A, dorsal view; B, lateral view; C, lateral view of anterior head; D, dorsal view of caudal ramus; E, anterior view of leg 1 (mc = macula cribrosa); F, detail of large spine on anterior surface of leg 1 basis. Scale bars represent 1.0 mm on figures A, B; 0.1 mm on remaining figures. Illustrated specimen from Indopac VIII, Stn 6.
FIGURE 8. Megacalanus princeps Wolfenden, 1904 in Revision of Family Megacalanidae (Copepoda: Calanoida)
FIGURE 8. Megacalanus princeps Wolfenden, 1904 male: A, dorsal view; B, lateral view, C, lateral view of anterior head; D, dorsal view of caudal ramus; E, leg 5 anterior view; F, detail of inner distal specialised seta on left leg 5 exopod segment 2; G, antennule ancestral segments XV–XVI; H, antennule ancestral segments XIX–XXI; I, antennule ancestral segments XXI- XXIII. Scale bars represent 1.0 mm on figures A, B; 0.1 mm on remaining figures. Illustrated specimen from ANTXXIV/1, Stn 2, 1000–2000 m.
FIGURE 14. Megacalanus frosti n in Revision of Family Megacalanidae (Copepoda: Calanoida)
FIGURE 14. Megacalanus frosti n. sp. male, details of selected right antennule ancestral segments: A, segments XIX–XXIII; B, segments XIV–XV; C, segments XIX–XX; D, segments XXI–XXIII. Scale bars represent 1.0 mm on figure A; 0.1 mm on remaining figures. Illustrated specimen from Francis Drake III, Stn 4.
FIGURE 16. Megacalanus ericae n in Revision of Family Megacalanidae (Copepoda: Calanoida)
FIGURE 16. Megacalanus ericae n. sp. male: A, dorsal view; B, lateral view; C, posterior view of leg 5; D, inner distal margin of exopod segment 2 of left leg; E, ancestral segments XIX–XX of right antennule; F, ancestral segments XXI–XXIII of right antennule. Scale bars represent 1.0 mm on figures A, B; 0.1 mm on remaining figures. Illustrated specimen from OCN627.
FIGURE 11. Megacalanus princeps Wolfenden, 1904 copepodite II in Revision of Family Megacalanidae (Copepoda: Calanoida)
FIGURE 11. Megacalanus princeps Wolfenden, 1904 copepodite II: A, dorsal view; B, lateral view; C, antennule; D, rostral filaments; E, antenna endopod segment 2; F, antenna exopod; G, mandible endopod; H, maxillule; I, maxilliped; J, leg 1—arrow indicates hook–like process; K, leg 2; L, leg 3. Scale bars represent: 1.0 mm on figures A–C; 0.1 mm on remaining figures. Illustrated specimens from ANTXXIV/1, Stn 2, 1000–2000 m.
FIGURE 13. Megacalanus frosti n in Revision of Family Megacalanidae (Copepoda: Calanoida)
FIGURE 13. Megacalanus frosti n. sp. male: A, dorsal view; B, lateral view; C, lateral view of anterior head; D, dorsal view of caudal ramus; E, posterior view of leg 5; F, inner distal margin of exopod segment 2 of left leg. Scale bars represent 1.0 mm on figures A–C; 0.1 mm on remaining figures. Illustated specimen from Francis Drake III, Stn 4.
FIGURE 10. Megacalanus princeps Wolfenden, 1904 nauplius VI in Revision of Family Megacalanidae (Copepoda: Calanoida)
FIGURE 10. Megacalanus princeps Wolfenden, 1904 nauplius VI: A, dorsal view; B, ventral view; C, antennule; D, antenna; E, mandible; F, posterior body, dorsal view. Scale bars represent 1.0 mm on figure A, B; 0.1 mm on remaining figures. Illustrated specimens from ANTXXIV/1, Stn 2, 1000–2000 m.
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