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113 results for “Megacalanidae”
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 9 in Revision of Family Megacalanidae (Copepoda: Calanoida)
FIGURE 9. Distribution of Megacalanus species: filled triangle = Megacalanus princeps; open triangle = M. frosti n. sp.; filled square = M. ericae n. sp.; open square = M. ohmani n. sp..
FIGURE 1 in Revision of Family Megacalanidae (Copepoda: Calanoida)
FIGURE 1. Diagram illustrating how measurements were made: A, dorsal view of female Megacalanus princeps; B, dorsal view of urosome of female Bathycalanus tumidus (Gns = genital double-somite); C, female antennule ancestral segments I–IV of Megacalanus ohmani; D, lateral view of urosome (Ur) of male Bathycalanus bradyi. E, intrinsic musculature of male Megacalanus princeps right antennule, ancestral segments XVIII–XXIII.
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 2 in Revision of Family Megacalanidae (Copepoda: Calanoida)
FIGURE 2. Selected characters and their states as detailed in Table 3. A, anterior head of Ba. richardi; B, anterior head of Ba. unicornis; C, anterior head of M. frosti n. sp.; D, anterior head of E. eltaninae; E, anterior head in lateral view of Ba. bradyi; F, urosome and pedigerous somite 5 of M. frosti n. sp.; G, urosome and pedigerous somite 5 of M. ohmani n. sp.; H, urosome and pedigerous somite 5 (right and left) of Ba. pustulosus n. sp.; I, detail of aesthetasc (a) and modified setae (ms) distally on antennule ancestral segments XXV of M. ohmani n. sp.; J. dorsal view of female antennule ancestral segments I–V of M. princeps showing position of hair sensilla and maculae cribrosae; K, female antennule ancestral segment XXVIII of M. ohmani n. sp.; L, female antennule ancestral segments XVI and XVII of M. princeps; M, female antennule ancestral segments XIV and XV of M. princeps; N, female antennule ancestral segment XXIII of M. ohmani n. sp.; O, antenna exopod of M. ohmani n. sp. Specific 'character: state' is indicated in the form '◄ 3:2'.
FIGURE 5 in Revision of Family Megacalanidae (Copepoda: Calanoida)
FIGURE 5. Selected characters and their states as detailed in Table 3. A, maxillule of M. ohmani n. sp. (C = coxal endite, B1 = basal endite 1); B, endopod of maxillule of M. ohmani n. sp.; C, maxilla praecoxal endite 1 seta of M. princeps; D, seta from praecoxal endite 1 of maxilla of Ba. richardi; E, maxilla endopod of M. ohmani n. sp.; F, maxilla of M. ohmani n. sp. (B = basal endite, C1, 2 = coxal endite 1 and 2, Pe1, 2 = praecoxal endties 1, 2); G, seta of coxal endite 2 of maxilla of Br. enormis; H, terminal maxilla seta from Megacalanus and Bradycalanus; I, terminal maxilla seta from a Bathycalanus; J, terminal maxilla seta from a Elenacalanus nom. nov. Specific 'character: state' is indicated in the form '◄ 3:2'.
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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