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505 results for “Anomopoda”
FIGURE 1 in A new species related to Alona costata Sars, 1862 (Cladocera: Anomopoda: Chydoridae) from South Africa
FIGURE 1. Alona natalensis sp. n. from Lakes Cave Tarn 3, Cobham, KwaZulu–Natal, the Republic of South Africa: A – juvenile female of instar I, B – juvenile female of instar II, C–G – parthenogenetic female: C – lateral view, D – valve, E – posterior margin of valves, F – head pores, H–G – postabdomen. Scale bars denote 0.1 mm.
FIGURE 4. S. duranguensis n in A New Species of the Freshwater Cladoceran Genus Scapholeberis Schoedler, 1858 (Cladocera: Anomopoda) from the Semidesert Northern Mexico, Highlighted by DNA Barcoding
FIGURE 4. S. duranguensis n. sp. A. trunk limb I; B. trunk limb II; C. Gnathobase of trunk limb II; D. Gnathobase of trunk limb II of S. armata freyi for comparison; E. Trunk limb III; F. trunk limb IV. G. Trunk limb V. Initials: AS=Accessory Seta, EH=ejector hooks, EN=endopod, EX=exopod, PS=proximal seta, E=endite, GN=gnathobase, BS=brush-shaped setae
FIGURE 1 in A New Species of the Freshwater Cladoceran Genus Scapholeberis Schoedler, 1858 (Cladocera: Anomopoda) from the Semidesert Northern Mexico, Highlighted by DNA Barcoding
FIGURE 1. SEM photographs: A, B, D, G and H Scapholeberis duranguensis n. sp., parthenogenetic female. A. Anterior view of the head and rostrum (note the keels on the head, the reticulated rostrum and the pore at the top of the head); B. Head pore; D. Habitus; G and H. Posterior rim of valves (note the thick double membrane of which the upper one is denticulated); C, E, F, I, J, K and L Scapholeberis armata freyi, parthenogenetic female. C. Anterior view of the head and rostrum (note that there is not a pore-like structure at the top of the head); E and F. Lateral view of a cultured and a wild specimen, respectively, both parthenogenetic females; I to L. Posterior rim of the valves with denticulate membrane (note that the membrane is thinner than in S. duranguensis n. sp.)
FIGURE 3. S. duranguensis n in A New Species of the Freshwater Cladoceran Genus Scapholeberis Schoedler, 1858 (Cladocera: Anomopoda) from the Semidesert Northern Mexico, Highlighted by DNA Barcoding
FIGURE 3. S. duranguensis n. sp. A. Lateral view of ephippial female; B. Mandible; C. Antennule; D. Anterior view of the head; E. Upper view of the head; F. Antenna; G. Postabdomen and postabdominal claw.
FIGURE 2 in A New Species of the Freshwater Cladoceran Genus Scapholeberis Schoedler, 1858 (Cladocera: Anomopoda) from the Semidesert Northern Mexico, Highlighted by DNA Barcoding
FIGURE 2. SEM photographs: A, C, E and G Scapholeberis duranguensis n. sp. A. Ephippial female, lateral view; C. Ventral view of trunk limbs; E. Ejector hooks (note the length as compared to those of S. armata freyi); G. Postabdomen and postabdominal claw. B, D, F and H Scapholeberis armata freyi, ephippial female. B. Lateral view; D. Ventral view of trunk limbs; F. Ejector hooks; H. Postabdomen and postabdominal claw.
FIGURE 5 in A New Species of the Freshwater Cladoceran Genus Scapholeberis Schoedler, 1858 (Cladocera: Anomopoda) from the Semidesert Northern Mexico, Highlighted by DNA Barcoding
FIGURE 5. ID tree based in maximum likelihood analyses in PAUP (–lnL=2482.38). Other Scapholeberis are used for comparison purposes with our material. To identify each Scapholeberis sp., GenBank accession numbers are provided.
FIGURE 9. Acroperus angustatus Sars, 1863 in Discrimination between two sibling species of Acroperus (Baird, 1843) from the Palearctic (Cladocera: Anomopoda: Chydoridae)
FIGURE 9. Acroperus angustatus Sars, 1863 from Germany, Berlin Area, Petersdorfersee Lake. A–E—parthenogenetic female: A—antennule, B—antenna, C–D—outer and inner part of thoracic limb I; E—juvenile male of instar I, inner part of thoracic limb I; F–G—juvenile male of instar II: F—antennule, G—inner part of thoracic limb I; H–I—adult male: H—antenna, I—thoracic limb I (endites not shown). Scale bar 0.05 mm.
FIGURE 6. Acroperus angustatus Sars, 1863. A–H in Discrimination between two sibling species of Acroperus (Baird, 1843) from the Palearctic (Cladocera: Anomopoda: Chydoridae)
FIGURE 6. Acroperus angustatus Sars, 1863. A–H—specimens from Germany, Berlin Area, Petersdorfersee Lake: A–B—juvenile females of instar I–II, C—parthenogenetic female, D–E—ephippial female, F–G—juvenile males of instar I–II, H—adult male; I–K—parthenogenetic females: I—from Norway, Oslo, Lake Ostensjovand (specimen from G.O.Sars collection, slide F9012), J—from Belarus, Vitebsk Area, Miorskii district, Lake Obsterno, K - from Russia, Chita Area, Chita town, Lake Kenon. Scale bar 0.2 mm.
FIGURE 10. Acroperus angustatus Sars, 1863 in Discrimination between two sibling species of Acroperus (Baird, 1843) from the Palearctic (Cladocera: Anomopoda: Chydoridae)
FIGURE 10. Acroperus angustatus Sars, 1863 from Germany, Berlin Area, Petersdorfersee Lake, parthenogenetic female, thoracic limbs: A—limb II (gnathobase filter plate not shown), B exopodite and soft seta of limb II, C—scrapers 6–8 of limb II, D—exopodite of limb III, E–F—inner part of limb III, G—exopodite of limb IV, H—scraping and flaming torch setae of limb IV; I–J—limb V, K –limb VI. Scale bars: 0.05 mm.
FIGURE 5 in Discrimination between two sibling species of Acroperus (Baird, 1843) from the Palearctic (Cladocera: Anomopoda: Chydoridae)
FIGURE 5. Acroperus harpae (Baird, 1834) from Russia, Murmansk Area, Khibiny Mountains, Lake Malyi Vud'yavr, parthenogenetic female, thoracic limbs: A—limb II, B—expodite of limb III, C–D—inner part of limb III, E—exopodite of limb IV, F—inner part of limb IV; G—limb V, H –limb VI. Scale bars: 0.05 mm.
FIGURE 4 in Discrimination between two sibling species of Acroperus (Baird, 1843) from the Palearctic (Cladocera: Anomopoda: Chydoridae)
FIGURE 4. Acroperus harpae (Baird, 1834) from Russia, Murmansk Area, Khibiny Mountains, Lake Malyi Vud'yavr. A–E—parthenogenetic female: A—antennule, B—antenna, C–D—outer and inner part of thoracic limb I, E—endites of limb II; F—juvenile male of instar I, inner part of thoracic limb I; G–H - juvenile male of instar II, G—antennule, H—inner part of thorachic limb I; I–K—adult male, I—antenna, J–K—outer and inner part of thoracic limb I. Scale bars: 0.05 mm.
FIGURE 3 in Discrimination between two sibling species of Acroperus (Baird, 1843) from the Palearctic (Cladocera: Anomopoda: Chydoridae)
FIGURE 3. Acroperus harpae (Baird, 1834) from Russia, Murmansk Area, Khibiny Mountains, Lake Malyi Vud'yavr. A–F—parthenogenetic female: A—valve, B–C—denticles of left and right valves of same specimens, D—head (note the one of antennules appears reaching the rostrum), E—outlines of labral keel, F–G—postabdomens; H–I—postabdomens of juvenile males of instar I–II; J—postabdomen of adult male. Scale bars: 0.1 mm for A, 0.05 mm for B–C, D–E and F–G.
FIGURE 2 in Discrimination between two sibling species of Acroperus (Baird, 1843) from the Palearctic (Cladocera: Anomopoda: Chydoridae)
FIGURE 2. Acroperus harpae (Baird, 1834) from Russia, Moscow Area, Ruza District, Glubokoe Lake, A–J—parthenogenetic female: A—specimen in lateral view, B—specimen in anterodorsal view, C–D—denticles of the valves, E—posterior portion of valves in anteroventral view, F—head pores (lateral pore indicated by arrow), G—main head pores, H—postabdomen, I—antenna, J—apical setae of antenna; K–M—adult male: K—specimen in lateral view, L—specimen in anterodorsal view, M—posterior portion of postabdomen. Scale bars: 0.1 mm for A, B, L, K, 0.05 mm for E, H,I,J, 0.01 mm for F,G, 0.005 mm for C, D.
FIGURE 1 in Discrimination between two sibling species of Acroperus (Baird, 1843) from the Palearctic (Cladocera: Anomopoda: Chydoridae)
FIGURE 1. Acroperus harpae (Baird, 1834). A–H—specimens from Russia, Murmansk Area, Khibiny Mountains, Lake Malyi Vud'yavr: A–B—juvenile females of instar I–II, C—parthenogenetic female, D—ephippial female, E–F—juvenile males of instar I–II, G—adult male; H–J—parthenogenetic females: H - from Russia, Moscow Area, Ruza District, Glubokoe Lake, I-from Belarus, Vitebsk Area, Miorskii district, Lake Obsterno, J - from Russia, Irkutsk Area, Barguzinka river close to coast of Lake Baikal coast. Scale bar 0.2 mm.
FIGURE 8. Acroperus angustatus Sars, 1863. A–E in Discrimination between two sibling species of Acroperus (Baird, 1843) from the Palearctic (Cladocera: Anomopoda: Chydoridae)
FIGURE 8. Acroperus angustatus Sars, 1863. A–E—denticles of the valves of specimens from various locations; F–K - specimens from Germany, Berlin Area, Petersdorfersee Lake: F—outlines of labral keel of female, G—female postabdomen, H–I—postabdomens of juvenile males of instar I–II; J—postabdomen of adult male, K—abnormal postabdomen of adult male (abnormal denticles indicated by arrows). Scale bars 0.05 mm.
FIGURE 7. Acroperus angustatus Sars, 1863 in Discrimination between two sibling species of Acroperus (Baird, 1843) from the Palearctic (Cladocera: Anomopoda: Chydoridae)
FIGURE 7. Acroperus angustatus Sars, 1863 females from Sweden, Uppland, Erken Lake, parthenogenetic female: A—specimen in lateral view, B—specimen in dorsolateral view, C—head in anterolateral view, D—posterior portion of valves in anteroventral view, E—head pores (lateral pore indicated by arrow), F—main head pores, G—postabdomen, H—postanal portion of postabdomen, I—postabdominal claw. Scale bars: 0.2 mm for A, B, 0.1 mm for C, D,G, 0.02 mm for E,H; 0.01 mm for F.
FIGURE 3 in Notes on chydorid endemism in continental Africa: Matralona gen. n., a monotypic Alonine from the Fouta Djalon Plateau (Guinea, West Africa) (Crustacea: Cladocera: Anomopoda)
FIGURE 3. Position of sixth limb in Matralona simoneae (Dumont, 1981). Abbreviations: ant, anterior; fg, food groove; P3−6, third to sixth limb; pa, postabdomen; post, posterior.
FIGURE 2 in Notes on chydorid endemism in continental Africa: Matralona gen. n., a monotypic Alonine from the Fouta Djalon Plateau (Guinea, West Africa) (Crustacea: Cladocera: Anomopoda)
FIGURE 2. Matralona simoneae (Dumont, 1981) gen. n.= Alona simonei Dumont, 1981, Samba Diallo, Guinée, 22.IV.1980. A. First maxilla; B. First limb; C. Idem, epipodite; D. Idem, ODL and IDL; E. Second limb; F. Idem, seventh scraper; G. Idem, gnathobase; H. Third limb, exopodite; I. Idem, without setules; J. Third limb, endite; K. Idem, gnathobase; L. Fourth limb, exopodite; M. Fourth limb, endite; N. Idem, flaming torch setae and gnathobasic seta; O. Fifth limb; P. Sixth limb, frontal view; Idem, lateral view in situ. Abbreviations: as, accessory seta; ds, dorsal seta; eh, ejector hooks; en, endite; ex, exopodite; ep, epipodite; fc, filter comb; gn, gnathobase; IDL, inner distal lobe; il, inner lobe; ODL, outer distal lobe; pep, pre-epipodite; pr, process; s, sensillum.
FIGURE 1 in Notes on chydorid endemism in continental Africa: Matralona gen. n., a monotypic Alonine from the Fouta Djalon Plateau (Guinea, West Africa) (Crustacea: Cladocera: Anomopoda)
FIGURE 1. Matralona simoneae (Dumont, 1981) gen. n. = Alona simonei Dumont, 1981, Samba Diallo, Guinée, 22.IV.1980. A. Habitus; B. Idem; C. Head pores; D. Posteroventral corner and denticles; E. Antennule; F. Antenna; G. Labral keel; H. Postabdomen; I. Lateral fascicle and marginal denticle in postanal portion.
FIGURE 5. The two-pored Matralona gen. n in Notes on chydorid endemism in continental Africa: Matralona gen. n., a monotypic Alonine from the Fouta Djalon Plateau (Guinea, West Africa) (Crustacea: Cladocera: Anomopoda)
FIGURE 5. The two-pored Matralona gen. n. and Armatalona Sinev, 2004. Both genera show similarities in external and limb morphology and may derive from a close common ancestor (or another result of homoplasy?). Both genera have the general appearance of small-sized Aloninae and previously belonged to Alona Baird, 1843. Top. Matralona simoneae (Dumont, 1981), Fouta Djalon, Guinea. Labral keel is completely exposed when compared to Armatalona. Below. Armatalona macrocopa (Sars, 1894), Australia. The spine-like antennal setae above the head are typical for the genus (Sinev 2004).
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