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Figure 8 from: Tang D, Eberhard SM (2016) Two new species of Nitocrella (Crustacea, Copepoda, Harpacticoida) from groundwaters of northwestern Australia expand the geographic range of the genus in a global hotspot of subterranean biodiversity. Subterranean Biology 20: 51-76. https://doi.org/10.3897/subtbiol.20.10389
Figure 8 - Nitocrella karanovici sp. n., adult male (A, B, C, D) and adult female (E, F, G, H, I, J): A urosomites 2–6 and caudal rami, ventral B left antennule with segments 3, 4, 6 and 7 shown separately and aesthetasc indicated by arrowhead, ventral C right leg 1 basis, anterior D right leg 5, ventral E terminal exopodal segment of right leg 1, anterior F terminal exopodal segment of left leg 3, anterior G terminal endopodal segment of left leg 3, anterior H same, anterior I basis and endopod of right leg 4, anterior J endopod of left leg 4, anterior. Scale bars: A 50 µm; B, I 25 µm; C, D, G, H, J 10 µm; E, F 20 µm.
Figure 5 from: Tang D, Eberhard SM (2016) Two new species of Nitocrella (Crustacea, Copepoda, Harpacticoida) from groundwaters of northwestern Australia expand the geographic range of the genus in a global hotspot of subterranean biodiversity. Subterranean Biology 20: 51-76. https://doi.org/10.3897/subtbiol.20.10389
Figure 5 - Nitocrella karanovici sp. n., adult female: A habitus, dorsal B urosomites 2–5 and caudal rami, ventral C genital double-somite, lateral D anal somite and caudal rami, dorsal E anal somite and left caudal ramus, lateral F rostrum, dorsal. Scale bars: A 100 µm; B 50 µm C, D, E 25 µm; F 5 µm.
Figure 9 from: Tomikawa K, Nakano T, Sato A, Onodera S, Ohtaka A (2016) A molecular phylogeny of Pseudocrangonyx from Japan, including a new subterranean species (Crustacea, Amphipoda, Pseudocrangonyctidae). Zoosystematics and Evolution 92(2): 187-202. https://doi.org/10.3897/zse.92.10176
Figure 9 - Pseudocrangonyx gudariensis Tomikawa & Sato, sp. n., paratype, female (3.1 mm), NSMT-Cr 24604. A–C uropods 1–3, respectively, dorsal views.
Figure 8 from: Tomikawa K, Nakano T, Sato A, Onodera S, Ohtaka A (2016) A molecular phylogeny of Pseudocrangonyx from Japan, including a new subterranean species (Crustacea, Amphipoda, Pseudocrangonyctidae). Zoosystematics and Evolution 92(2): 187-202. https://doi.org/10.3897/zse.92.10176
Figure 8 - Pseudocrangonyx gudariensis Tomikawa & Sato, sp. n., paratype, female (3.1 mm), NSMT-Cr 24604. A antenna 1, medial view; B antenna 2, medial view; C gnathopod 1, lateral view; D palmar margin of propodus and dactylus of gnathopod 1, medial view; E gnathopod 2, lateral view; F palmar margin of propodus and dactylus of gnathopod 2, medial view.
Figure 7 from: Tomikawa K, Nakano T, Sato A, Onodera S, Ohtaka A (2016) A molecular phylogeny of Pseudocrangonyx from Japan, including a new subterranean species (Crustacea, Amphipoda, Pseudocrangonyctidae). Zoosystematics and Evolution 92(2): 187-202. https://doi.org/10.3897/zse.92.10176
Figure 7 - Pseudocrangonyx gudariensis Tomikawa & Sato, sp. n., holotype, male (3.9 mm), NSMT-Cr 24603. A pleopod 1, anterior view; B retinacula on peduncle of pleopod 1, anterior view; C pleopod 2, anterior view; D pleopod 3, anterior view; E uropod 1, dorsal view; F uropod 2, dorsal view; G distal part of inner ramus of uropod 2, dorsal view; H uropod 3, dorsal view; I–K dorsal margins of pleonites 1–3, respectively, dorsal views; L–N dorsal margins of urosomites 1–3, respectively, dorsal views; O telson, dorsal view; P–R epimeral plates 1–3, respectively, lateral views.
Figure 6 from: Tomikawa K, Nakano T, Sato A, Onodera S, Ohtaka A (2016) A molecular phylogeny of Pseudocrangonyx from Japan, including a new subterranean species (Crustacea, Amphipoda, Pseudocrangonyctidae). Zoosystematics and Evolution 92(2): 187-202. https://doi.org/10.3897/zse.92.10176
Figure 6 - Pseudocrangonyx gudariensis Tomikawa & Sato, sp. n., holotype, male (3.9 mm), NSMT-Cr 24603. A pereopod 6, lateral view; B dactylus of pereopod 6, lateral view; C coxa–carpus of pereopod 6, lateral view; D propodus–dactylus of pereopod 6, lateral view; E dactylus of pereopod 7, lateral view.
Figure 4 from: Tomikawa K, Nakano T, Sato A, Onodera S, Ohtaka A (2016) A molecular phylogeny of Pseudocrangonyx from Japan, including a new subterranean species (Crustacea, Amphipoda, Pseudocrangonyctidae). Zoosystematics and Evolution 92(2): 187-202. https://doi.org/10.3897/zse.92.10176
Figure 4 - Pseudocrangonyx gudariensis Tomikawa & Sato, sp. n., holotype, male (3.9 mm), NSMT-Cr 24603. A maxilliped, dorsal view; B inner plate of maxilliped, dorsal view; C outer plate of maxilliped, dorsal view; D gnathopod 1, lateral view; E palmar margin of propodus and dactylus of gnathopod 1, medial view; F gnathopod 2, lateral view; G palmar margin of propodus and dactylus of gnathopod 2, medial view.
Figure 1 from: Tomikawa K, Nakano T, Sato A, Onodera S, Ohtaka A (2016) A molecular phylogeny of Pseudocrangonyx from Japan, including a new subterranean species (Crustacea, Amphipoda, Pseudocrangonyctidae). Zoosystematics and Evolution 92(2): 187-202. https://doi.org/10.3897/zse.92.10176
Figure 1 - Map showing the collection localities of the specimens examined in this study and type localities of the known Japanese Pseudocrangonyx species. The closed circles indicate the localities of the referred materials used for the phylogenetic analyses. The star in red denotes the type locality of the new species; in purple, Pseudocrangonyx shikokunis; in blue, Pseudocrangonyx kyotonis; and in green, Pseudocrangonyx yezonis. Names of localities are shown in Table 1.
Figure 3 from: Tomikawa K, Nakano T, Sato A, Onodera S, Ohtaka A (2016) A molecular phylogeny of Pseudocrangonyx from Japan, including a new subterranean species (Crustacea, Amphipoda, Pseudocrangonyctidae). Zoosystematics and Evolution 92(2): 187-202. https://doi.org/10.3897/zse.92.10176
Figure 3 - Pseudocrangonyx gudariensis Tomikawa & Sato, sp. n., holotype, male (3.9 mm), NSMT-Cr 24603. A antenna 1, medial view; B antenna 2, medial view; C upper lip, anterior view; D lower lip, ventral view; E left mandible, medial view; F right mandible, medial view; G maxilla 1, dorsal view; H maxilla 2, dorsal view.
Figure 5 from: Tomikawa K, Nakano T, Sato A, Onodera S, Ohtaka A (2016) A molecular phylogeny of Pseudocrangonyx from Japan, including a new subterranean species (Crustacea, Amphipoda, Pseudocrangonyctidae). Zoosystematics and Evolution 92(2): 187-202. https://doi.org/10.3897/zse.92.10176
Figure 5 - Pseudocrangonyx gudariensis Tomikawa & Sato, sp. n., holotype, male (3.9 mm), NSMT-Cr 24603. A pereopod 3, lateral view; B pereopod 4, lateral view; C pereopod 5, lateral view; D dactylus of pereopod 5, lateral view.
Figure 10 from: Tomikawa K, Nakano T, Sato A, Onodera S, Ohtaka A (2016) A molecular phylogeny of Pseudocrangonyx from Japan, including a new subterranean species (Crustacea, Amphipoda, Pseudocrangonyctidae). Zoosystematics and Evolution 92(2): 187-202. https://doi.org/10.3897/zse.92.10176
Figure 10 - Bayesian inference tree for 2,397 bp of nuclear 28S rRNA plus histone H3 and mitochondrial COI and 16S rRNA markers, with the map modified from Fig. 1. Numbers on nodes represent bootstrap values for maximum likelihood and Bayesian posterior probabilities. Specimen numbers are also shown in Fig. 1 and Table 1.
Figure 2 from: Tomikawa K, Nakano T, Sato A, Onodera S, Ohtaka A (2016) A molecular phylogeny of Pseudocrangonyx from Japan, including a new subterranean species (Crustacea, Amphipoda, Pseudocrangonyctidae). Zoosystematics and Evolution 92(2): 187-202. https://doi.org/10.3897/zse.92.10176
Figure 2 - Pseudocrangonyx gudariensis Tomikawa & Sato, sp. n., holotype, male (3.9 mm), NSMT-Cr 24603. Habitus, lateral view.
Figure 1 from: Vas Z, Kutasi C (2016) Hymenoptera from caves of Bakony Mountains, Hungary – an overlooked taxon in hypogean research. Subterranean Biology 19: 31-39. https://doi.org/10.3897/subtbiol.19.10016
Figure 1 - Location on the studied caves in Hungary: 1 Csodabogyós Cave (Balatonederics) 2 Pokol Hole (Kapolcs) 3 Lóczy Cave (Balatonfüred) 4 Kőlik Cave (Szentgál) 5 Takó Cave (Veszprém).
Figure 6 from: Espinasa L, Collins E, Finocchiaro A, Kopp J, Robinson J, Rutkowski J (2016) Incipient regressive evolution of the circadian rhythms of a cave amphipod. Subterranean Biology 20: 1-13. https://doi.org/10.3897/subtbiol.20.10010
Figure 6 - Stygobromus allegheniensis has continuous light avoidance behavior which does not appear to follow circadian rhythmicity. White boxes indicate illuminated conditions.
Figure 3 from: Espinasa L, Collins E, Finocchiaro A, Kopp J, Robinson J, Rutkowski J (2016) Incipient regressive evolution of the circadian rhythms of a cave amphipod. Subterranean Biology 20: 1-13. https://doi.org/10.3897/subtbiol.20.10010
Figure 3 - Variability in motor rhythms while in continuous darkness in three Ice Cave individuals (A–C) and four Clarksville Cave individuals (D–G) tested in the laboratory. Black boxes indicate periods while in darkness.
Figure 2 from: Espinasa L, Collins E, Finocchiaro A, Kopp J, Robinson J, Rutkowski J (2016) Incipient regressive evolution of the circadian rhythms of a cave amphipod. Subterranean Biology 20: 1-13. https://doi.org/10.3897/subtbiol.20.10010
Figure 2 - Experimental protocol and representative motor rhythms of one individual. Ice Cave individuals were subjected in the laboratory to the following conditions: Five half-cycles of darkness, followed by two cycles of light/dark during normal day/night schedules, followed by two cycles of dark/light during reverse day/night schedules, followed by a half-cycle of darkness. Black boxes indicate dark conditions while white boxes represent illuminated conditions. Movements were evaluated for each 10-minute period.
Figure 7 from: Espinasa L, Collins E, Finocchiaro A, Kopp J, Robinson J, Rutkowski J (2016) Incipient regressive evolution of the circadian rhythms of a cave amphipod. Subterranean Biology 20: 1-13. https://doi.org/10.3897/subtbiol.20.10010
Figure 7 - Specimens from Clarksville Cave (A–C) and the Ice Cave (D–F) studied in the natural environment of the cave. Under continuous darkness, most specimens had periods of activity with no clear indication of periodicity. Only in one of them (E) there was an apparent 12 hour rest period. Black boxes indicate periods while in darkness.
Figure 1 from: Espinasa L, Collins E, Finocchiaro A, Kopp J, Robinson J, Rutkowski J (2016) Incipient regressive evolution of the circadian rhythms of a cave amphipod. Subterranean Biology 20: 1-13. https://doi.org/10.3897/subtbiol.20.10010
Figure 1 - Adult and juvenile specimens of Stygobromus allegheniensis from Ice Cave #1 at Sam's Point Preserve. As is typical of cave-adapted organisms, this species is depigmented, has long appendages, and is fully eyeless. Nonetheless, it can detect light and actively avoids it.
Figure 4 from: Espinasa L, Collins E, Finocchiaro A, Kopp J, Robinson J, Rutkowski J (2016) Incipient regressive evolution of the circadian rhythms of a cave amphipod. Subterranean Biology 20: 1-13. https://doi.org/10.3897/subtbiol.20.10010
Figure 4 - Motor activity followed periods of light or darkness regardless of the time of the day. Individuals on the left (A–C) are the same as individuals on the right (A'–C'). Black boxes indicate periods while in darkness and white boxes indicate illuminated conditions.
Figure 5 from: Espinasa L, Collins E, Finocchiaro A, Kopp J, Robinson J, Rutkowski J (2016) Incipient regressive evolution of the circadian rhythms of a cave amphipod. Subterranean Biology 20: 1-13. https://doi.org/10.3897/subtbiol.20.10010
Figure 5 - Entrainment by light is apparently not functioning in the Ice Cave (A–C and A'–C') and Clarksville Cave (D–G) populations. In Stygobromus allegheniensis, the second dark period lacks the anticipation and synchronization of a period of activity, which is a hallmark of organisms possessing a light-entrained circadian rhythm. Black boxes indicate periods while in darkness and white boxes indicate illuminated conditions.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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