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22 results for “Rhynchotalona”
FIGURE 12 in Revision of the Holarctic genus Rhynchotalona Norman, 1903 (Anomopoda: Chydoridae)
FIGURE 12. Rhynchotalona longiseta sp. nov. A–K, parthenogenetic female from Lake of Two Rivers, Algonquin Park, Ontario, Canada. A, antennule. B–K, thoracic limbs. B–C, limb I and its ODL and IDL. D, limb II, gnathobase not shown. E, exopodite of limb III. F–G, inner portion of limb III. H, exopodite of limb IV. I, scraping and flaming-torch setae of limb IV. J, limb V. K, limb VI. L–O, adult male from Smoke lake, Algonquin Park, Ontario, Canada. L, antennule. M-O, thoracic limb I, its copulatory hook and IDL. Scale bar 0.05 mm.
FIGURE 10 in Revision of the Holarctic genus Rhynchotalona Norman, 1903 (Anomopoda: Chydoridae)
FIGURE 10. Rhynchotalona longiseta sp. nov., parthenogenetic female from Lake of Two Rivers, Algonquin Park, Ontario, Canada. A–B, lateral view. C, dorsal view. D, head. E, head pores. F–G, postabdomen and posteriormost setae of valves. H, antennule. I, antenna. Scale bars: 0.1 mm for A–C, 0.02 mm for D, F–H; 0.01 mm for E, I.
FIGURE 9 in Revision of the Holarctic genus Rhynchotalona Norman, 1903 (Anomopoda: Chydoridae)
FIGURE 9. Rhynchotalona longiseta sp. nov. A–I, from Lake of Two Rivers, Algonquin Park, Ontario, Canada. A, juvenile female of instar II. B–H, parthenogenetic female. B–C, lateral view. D, ventral portion of valve. E–F, postero-ventral corner of valves. G, rostrum of flattened head shield. H, head pores. I–J, adult male Smoke lake, Algonquin Park, Ontario, Canada. I, lateral view. J, rostrum. Scale bars: 0.01 mm for A–C, I and D, G; 0.05 mm for E–F, H, J.
FIGURE 5 in Revision of the Holarctic genus Rhynchotalona Norman, 1903 (Anomopoda: Chydoridae)
FIGURE 5. Rhynchotalona weiri sp. nov. from Cranberry lake, Adirondack mountains, New York State, USA. A, juvenile female of instar II. B, adult parthenogenetic female. B–C, lateral view. D, posterior part of ventral margin of valve. E, posteroventral angle of valves. F, head shield. G–H, head pores. I, ephippial female. J–L, adult male. J–K, lateral view. L, ventral view. Scale bars: 0.1 mm for A–D, F, I–L; 0.05 mm for E, G–H.
FIGURE 11 in Revision of the Holarctic genus Rhynchotalona Norman, 1903 (Anomopoda: Chydoridae)
FIGURE 11. Rhynchotalona longiseta sp. nov. A–E, parthenogenetic female from Lake of Two Rivers, Algonquin Park, Ontario, Canada. A–B, labrum. C–D, postabdomen. E, antenna. F, postabdomen of adult male from Smoke lake, Algonquin Park, Ontario, Canada. Scale bar 0.05mm.
FIGURE 8 in Revision of the Holarctic genus Rhynchotalona Norman, 1903 (Anomopoda: Chydoridae)
FIGURE 8. Rhynchotalona weiri sp. nov. from Cranberry lake, Adirondack mountains, New York State, USA. A–H, parthenogenetic female, thoracic limbs. A, limb I. B, ODL and IDL of limb I. C, limb II. D, exopodite and distal endite of limb III. E, exopodite of limb IV. F, inner portion of limb IV. G, limb V (praepipodite not shown). H, limb VI. I–K, adult male, thoracic limb I: I, general view; J, ODL and copulatory hook; I, IDL. Scale bar 0.05 mm.
FIGURE 7 in Revision of the Holarctic genus Rhynchotalona Norman, 1903 (Anomopoda: Chydoridae)
FIGURE 7. Rhynchotalona weiri sp. nov. from Cranberry lake, Adirondack mountains, New York State, USA. A–E, parthenogenetic female. A, labrum. B–C, postabdomen. D, antennule. E, antenna. F–G, male. F, postbadomen. G, antennule. Scale bar 0.05 mm.
FIGURE 4 in Revision of the Holarctic genus Rhynchotalona Norman, 1903 (Anomopoda: Chydoridae)
FIGURE 4. Rhynchotalona falcata from Glubokoe Lake, Ruza District, Moscow Area, Russia. A–H, parthenogenetic female, labrum and thoracic limbs. A, labrum. B, limb I. C, ODL and IDL of limb I. D, limb II. E, exopodite of limb III. F–G, inner portion of limb III. H, exopodite of limb IV. I, inner portion of limb IV. J, limb V. K, limb VI. L, juvenile male of instar II, ODL, copulatory hook and IDL of limb I. M–N, adult male, thoracic limb I. M, general view. N, ODL, copulatory hook, and IDL. Scale bar 0.05 mm.
FIGURE 6 in Revision of the Holarctic genus Rhynchotalona Norman, 1903 (Anomopoda: Chydoridae)
FIGURE 6. Rhynchotalona weiri sp. nov. from Cranberry lake, Adirondack mountains, New York State, USA, parthenogenetic females. A, lateral view. B–C, antero-lateral view. D, dorso-lateral view. E, antero-ventral corners of valves. F, rostrum. G, major head pore (partially covered by old valves). H, postabdomen and abdomen. I, postabdomen. J, antennule. K, antenna. Scale bars: 0.1 mm for A–D, 0.05 mm for H–I; 0.01 mm for E–G, J–K.
FIGURE 3 in Revision of the Holarctic genus Rhynchotalona Norman, 1903 (Anomopoda: Chydoridae)
FIGURE 3. Rhynchotalona falcata from Glubokoe Lake, Ruza District, Moscow Area, Russia. A, postabdomen of parthenogenetic female. B, ephippial female. C–F, juvenile male of instar I. C, lateral view. D, rostrum. E, postabdomen. F, antennule. G–L, adult male. G–H, same specimen in lateral view and ventral view. I, rostrum. J–K, postabdomen. L, distal part of antennule. Scale bars: 0.1 mm for B–C, G–H; 0.05 mm for A, D–F, I–K.
FIGURE 2 in Revision of the Holarctic genus Rhynchotalona Norman, 1903 (Anomopoda: Chydoridae)
FIGURE 2. Rhynchotalona falcata from Glubokoe Lake, Ruza District, Moscow Area, Russia, parthenogentic female. A–С, lateral, latero-ventral and anterior view. D, postero-ventral angle of valves and distal portion of postabdomen. E, head. F, head pores. G–H, postabdomen. I, postabdominal claw. J–K, antenna. Scale bar 0.1 mm for A–C; 0.01 mm for D–E, G–K; 0.001 mm for F.
FIGURE 1 in Revision of the Holarctic genus Rhynchotalona Norman, 1903 (Anomopoda: Chydoridae)
FIGURE 1. Rhynchotalona falcata from Glubokoe Lake, Ruza District, Moscow Area, Russia, parthenogentic female. A–D, lateral, ventral, dorsal and anterior view of an adult female. E–F, antero-ventral and postero-ventral corners of valve. G–H, head in lateral view. I, head in ventral view. J–L, postabdomen. M, antennule. N, antenna. Scale bars: 0.1 mm for A–D, G–M; 0.05 mm for E–F, N.
FIGURE 5 in The most latent cladoceran in the Holarctic revealed-sinking Unapertura Sarmaja-Korjonen, Hakojärvi & Korhola, 2000 into the genus Rhynchotalona Norman, 1903 (Branchiopoda: Cladocera: Chydoridae)
FIGURE 5. Rhynchotalona kistarae Røen, 1973—Adult parthenogenetic female from Kap Farvel Area, Pamiagdiuq Island, Greenland, all images reproduced after the original drawings and description in Røen (1973). A, habitus, lateral view. B, detail of head; C, posteroventral valve setae. D, labral keel. E, headshield. F–G, postabdomen, complete overview (G) and marginal denticles (F); arrow in F points at the marginal denticle on the postanal corner.
FIGURE 4 in The most latent cladoceran in the Holarctic revealed-sinking Unapertura Sarmaja-Korjonen, Hakojärvi & Korhola, 2000 into the genus Rhynchotalona Norman, 1903 (Branchiopoda: Cladocera: Chydoridae)
FIGURE 4. Map of the only localities (red circles) where intact specimens of Rhynchotalona latens (Sarmaja-Korjonen, Hakojärvi & Korhola, 2000) comb. nov. have been found so far, all located in Finland. Current locality, the unnamed pond near Kenesjärvi of the Utsjoki River in northern Finnish Lapland (northernmost locality in map, upper red circle). The other northern localities are in the Inari–Utsjoki region in northern Finnish Lapland, lakes (from north to south) Gárggoláttu, Lasâjáávráŝ, Sylvilampi, Vaaranpäällyslampi and Taivaljärvi (Nevalainen et al. 2018). Southern localities, lakes (from north to south) Iso Lehmälampi, Kalatoin, Iso Majaslampi and Hauklampi in the Nuuksio district of southern Finland (Nevalainen 2008).
FIGURE 1 in The most latent cladoceran in the Holarctic revealed-sinking Unapertura Sarmaja-Korjonen, Hakojärvi & Korhola, 2000 into the genus Rhynchotalona Norman, 1903 (Branchiopoda: Cladocera: Chydoridae)
FIGURE 1. Rhynchotalona latens (Sarmaja-Korjonen, Hakojärvi & Korhola, 2000) comb. nov. Adult parthenogenetic female, ephippium and habitat. A, intact parthenogenetic female (holotype) from Lake Kalatoin, Nuuksio district, southern Finland, sampled by activity traps in mid July 2006, photo reproduced after Nevalainen (2008). B, remains of an adult parthenogenetic female from Lake Kalatoin, southern Finland, sampled by sweep net in early May 2005. C, degraded adult parthenogenetic female specimen from Lake Iso-Majaslampi, southern Finland, sampled by sweep net in late May 2005. D, cast ephippium and dormant embryo with postabdomen still attached from Lake Iso-Majaslampi, Nuuksio district, southern Finland, sampled by sweep net in early August 2005, photo reproduced after Nevalainen (2008). E–F, lake and catchment view over the unnamed pond near Kenesjärvi of the Utsjoki River, Lapland, northern Finland (E) and littoral vegetation including moss and Eriophorum vaginatum (F); photos taken in late July 2012 during the sampling. A–D. scale bars 200 µm. All specimens mounted on glycerol gelatin stained with safranin
FIGURE 3 in The most latent cladoceran in the Holarctic revealed-sinking Unapertura Sarmaja-Korjonen, Hakojärvi & Korhola, 2000 into the genus Rhynchotalona Norman, 1903 (Branchiopoda: Cladocera: Chydoridae)
FIGURE 3. Rhynchotalona latens (Sarmaja-Korjonen, Hakojärvi & Korhola, 2000) comb. nov. Adult parthenogenetic female. A–C after Sarmaja-Korjonen et al. (2000) and Sweetman & Sarmaja-Korjonen (2017). E–H, intact specimen from an unnamed pond near Kenesjärvi of the Utsjoki River, Tenojoki tributary, Utsjoki region, Lapland, Finland, collected by by research technical staff of the Kevo Subarctic Research Institute, 30.7.2012. A, headpores. B, headshield, dorsal view. C, headshield with verrucae, lateral view. D, antennular corm. E, second antenna, setulation and terminal setae omitted. F, second antenna, terminal segment of exopodite. G, first limb, ODL and IDL. H, second limb, contours of scraper setae.
FIGURE 2 in The most latent cladoceran in the Holarctic revealed-sinking Unapertura Sarmaja-Korjonen, Hakojärvi & Korhola, 2000 into the genus Rhynchotalona Norman, 1903 (Branchiopoda: Cladocera: Chydoridae)
FIGURE 2. Rhynchotalona latens (Sarmaja-Korjonen, Hakojärvi & Korhola, 2000) comb. nov. Adult parthenogenetic female, intact specimen from an unnamed pond near Kenesjärvi of the Utsjoki River, Tenojoki tributary, Utsjoki region, Lapland, Finland, collected by research technical staff of the Kevo Subarctic Research Institute, 30.7.2012. A, habitus in lateral view, antennal setae omitted. B, head in lateral view, antenna omitted. C, ventral valve setae. D, posteroventral valve corner and setae. E, labral keel. F–G, postabdomen (G) bearing a row of five robust postanal teeth (F).
FIGURE 5 in Notes on morphology and ecology of an elusive water flea Rhynchotalona latens (Sarmaja-Korjonen, Hakojärvi & Korhola, 2000) (Crustacea: Cladocera)
FIGURE 5. Rhynchotalona latens (Sarmaja-Korjonen, Hakojärvi et Korhola, 2000) from coastal Sphagnum mosses at Lake Krugloe, Chupa District, Republic of Karelia, Russia, parthenogenetic female. A, antenna. B, limb I. C, IDL and ODL of limb I. D, E, inner and outer portions of limb II. F, exopodite of limb III. G, distal endite of limb III. H, exopodite of limb IV. I, inner portion of limb IV. J,K, inner and outer portions of limb V. L, limb VI. as = accessory seta. ex = exopodite. en = endopodite. ep = epipodite. gfp = gnathobase filter plate. il = inner limb portion. pep = pre-epipodite.
FIGURE 4 in Notes on morphology and ecology of an elusive water flea Rhynchotalona latens (Sarmaja-Korjonen, Hakojärvi & Korhola, 2000) (Crustacea: Cladocera)
FIGURE 4. Rhynchotalona latens (Sarmaja-Korjonen, Hakojärvi et Korhola, 2000) from coastal Sphagnum mosses at Lake Krugloe, Chupa District, Republic of Karelia, Russia, parthenogenetic female. A,B, head pores. C–E, postabdomen. F, distal portion of postabdomen. lp = lateral head pore. mp = main head pore.
FIGURE 1 in Notes on morphology and ecology of an elusive water flea Rhynchotalona latens (Sarmaja-Korjonen, Hakojärvi & Korhola, 2000) (Crustacea: Cladocera)
FIGURE 1. Rhynchotalona latens (Sarmaja-Korjonen, Hakojärvi et Korhola, 2000) from coastal Sphagnum mosses at Lake Krugloe, Chupa District, Republic of Karelia, Russia. A,B, juvenile females of instars I and II. С–M, parthenogenetic female. C,D, lateral view. E, ventral margin of valves. F, posteroventral angle of valves. G, rostrum. H–J, labrum. K, postabdomen. L, postadominal claw. M, antennule.
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