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152 results for “species circumscriptions”
Figure 1 from: Rivera-Quiroz FA, Petcharad B, Miller JA (2021) First records and three new species of the family Symphytognathidae (Arachnida, Araneae) from Thailand, and the circumscription of the genus Crassignatha Wunderlich, 1995. ZooKeys 1012: 21-53. https://doi.org/10.3897/zookeys.1012.57047
Figure 1 Tree topology obtained by Maximum Parsimony in MEGA-X using a modified version of Lopardo et al., (2011) and Feng et al., (2019) plus the four symphytognathid species from our study (in red). Numbers at nodes indicate bootstrap support. Note the paraphyly of Anapidae and the high support of Crassignatha and Patu in the Symphytognathidae. Molecular vouchers used for previous "symphytognathoid" studies (Lopardo et al. 2011; Lopardo and Hormiga 2015) identified to genus level by L. Lopardo (pers. comm.) as follows: ■ Crassignatha (apparently conspecific with C. seeliam); ◆Patu; and ▲Symphytognatha.
Figure 4 from: Rivera-Quiroz FA, Petcharad B, Miller JA (2021) First records and three new species of the family Symphytognathidae (Arachnida, Araneae) from Thailand, and the circumscription of the genus Crassignatha Wunderlich, 1995. ZooKeys 1012: 21-53. https://doi.org/10.3897/zookeys.1012.57047
Figure 4 3D reconstruction of the male palp of Crassignatha with detail in the spermatic ducts: a–cC. seeliam sp. nov. d–fC. danaugirangensis. Scale bars: 0.1 mm.
Figure 3 from: Rivera-Quiroz FA, Petcharad B, Miller JA (2021) First records and three new species of the family Symphytognathidae (Arachnida, Araneae) from Thailand, and the circumscription of the genus Crassignatha Wunderlich, 1995. ZooKeys 1012: 21-53. https://doi.org/10.3897/zookeys.1012.57047
Figure 3 Tree topology obtained by Bayesian Inference in Mr. Bayes using a modified version of Lopardo et al. (2011) and Feng et al. (2019) plus the four symphytognathid species from our study (in red). Numbers at nodes indicate percent posterior probabilities. Note the unresolved relations of the Anapidae and the highly supported monophyly of Symphytognathidae. Molecular vouchers used for previous "symphytognathoid" studies (Lopardo et al. 2011; Lopardo and Hormiga 2015) identified to genus level by L. Lopardo (pers. comm.) as follows: ■ Crassignatha (apparently conspecific with C. seeliam); ◆Patu; and ▲Symphytognatha.
Figure 14 from: Rivera-Quiroz FA, Petcharad B, Miller JA (2021) First records and three new species of the family Symphytognathidae (Arachnida, Araneae) from Thailand, and the circumscription of the genus Crassignatha Wunderlich, 1995. ZooKeys 1012: 21-53. https://doi.org/10.3897/zookeys.1012.57047
Figure 14 Patu shiluensis Lin & Li, 2009 female: Habitus: a ventral view b dorsal view. Epigynum: c ventral view d dorsal view, cleared. Scale bars: 0.2 mm (a, b); 0.06 mm (c); 0.03 mm (d).
Supplementary material 1 from: Rivera-Quiroz FA, Petcharad B, Miller JA (2021) First records and three new species of the family Symphytognathidae (Arachnida, Araneae) from Thailand, and the circumscription of the genus Crassignatha Wunderlich, 1995. ZooKeys 1012: 21-53. https://doi.org/10.3897/zookeys.1012.57047
List of primers used in our study
Figure 9 from: Rivera-Quiroz FA, Petcharad B, Miller JA (2021) First records and three new species of the family Symphytognathidae (Arachnida, Araneae) from Thailand, and the circumscription of the genus Crassignatha Wunderlich, 1995. ZooKeys 1012: 21-53. https://doi.org/10.3897/zookeys.1012.57047
Figure 9 Anapistula choojaiae sp. nov., genitalia. Palp: a ventral view b dorsal view. Epigynum, cleared: c dorsal view. Scale bars: 0.07 mm (a, b); 0.06 mm (c).
Figure 6 from: Rivera-Quiroz FA, Petcharad B, Miller JA (2021) First records and three new species of the family Symphytognathidae (Arachnida, Araneae) from Thailand, and the circumscription of the genus Crassignatha Wunderlich, 1995. ZooKeys 1012: 21-53. https://doi.org/10.3897/zookeys.1012.57047
Figure 6 3D reconstruction of the habitus of Crassignatha males: a, bC. seeliam sp. nov. c, dC. danaugirangensis. Right pedipalp was dissected previous to the scanning. Scale bars: 0.3 mm.
Figure 5 from: Rivera-Quiroz FA, Petcharad B, Miller JA (2021) First records and three new species of the family Symphytognathidae (Arachnida, Araneae) from Thailand, and the circumscription of the genus Crassignatha Wunderlich, 1995. ZooKeys 1012: 21-53. https://doi.org/10.3897/zookeys.1012.57047
Figure 5 3D reconstruction of some diagnostic characters of Crassignatha males: a, c, eC. danaugirangensisb, dC. seeliam sp. nov. a chelicerae, arrow pointing at the bifurcated tooth b, c detail of the carapace; cephalothorax tubercles (in the squares), and pore bearing sulcus (arrows) d, e male leg II clasper f whole male specimen of C. danaugirangensis prepared for micro-CT inside a modified 10 µl pipette tip and a 0.5 ml Eppendorf tube filled with 70% Et-OH. Scale bars: 0.06 mm (a); 0.1 mm (b–e).
Figure 12 from: Rivera-Quiroz FA, Petcharad B, Miller JA (2021) First records and three new species of the family Symphytognathidae (Arachnida, Araneae) from Thailand, and the circumscription of the genus Crassignatha Wunderlich, 1995. ZooKeys 1012: 21-53. https://doi.org/10.3897/zookeys.1012.57047
Figure 12 Crassignatha seeliam sp. nov., genitalia. Palp: a ventral view b dorsal view. Epigynum, cleared: c dorsal view d ventral view. Scale bars: 0.1 mm (a, b); 0.07 mm (c, d).
Figure 7 from: Rivera-Quiroz FA, Petcharad B, Miller JA (2021) First records and three new species of the family Symphytognathidae (Arachnida, Araneae) from Thailand, and the circumscription of the genus Crassignatha Wunderlich, 1995. ZooKeys 1012: 21-53. https://doi.org/10.3897/zookeys.1012.57047
Figure 7 Anapistula choojaiae sp. nov. male: Habitus: a ventral view b dorsal view. Palp: c ventral view. Female: Prosoma: d anterior view. Scale bars: 0.2 mm (a, b); 0.07 mm (c); 0.06 mm (d). Arrow pointing to the cheliceral teeth.
Figure 11 from: Rivera-Quiroz FA, Petcharad B, Miller JA (2021) First records and three new species of the family Symphytognathidae (Arachnida, Araneae) from Thailand, and the circumscription of the genus Crassignatha Wunderlich, 1995. ZooKeys 1012: 21-53. https://doi.org/10.3897/zookeys.1012.57047
Figure 11 Crassignatha seeliam sp. nov. female: Habitus: a ventral view b dorsal view. Epigynum: c ventral view d dorsal view, cleared. Scale bars: 0.4 mm (a, b); 0.15 mm (c); 0.07 mm (d).
Figure 2 from: Rivera-Quiroz FA, Petcharad B, Miller JA (2021) First records and three new species of the family Symphytognathidae (Arachnida, Araneae) from Thailand, and the circumscription of the genus Crassignatha Wunderlich, 1995. ZooKeys 1012: 21-53. https://doi.org/10.3897/zookeys.1012.57047
Figure 2 Tree topology obtained by Maximum Likelihood in RAxML using a modified version of Lopardo et al. (2011) and Feng et al. (2019) plus the four symphytognathid species from our study (in red). Numbers at nodes indicate bootstrap support. Note the long branch of Anapistula and its position within Anapidae; and the high support of Crassignatha and Patu in the Symphytognathidae. Molecular vouchers used for previous "symphytognathoid" studies (Lopardo et al. 2011; Lopardo and Hormiga 2015) identified to genus level by L. Lopardo (pers. comm.) as follows: ■ Crassignatha (apparently conspecific with C. seeliam); ◆Patu; and ▲Symphytognatha.
Figure 15 from: Rivera-Quiroz FA, Petcharad B, Miller JA (2021) First records and three new species of the family Symphytognathidae (Arachnida, Araneae) from Thailand, and the circumscription of the genus Crassignatha Wunderlich, 1995. ZooKeys 1012: 21-53. https://doi.org/10.3897/zookeys.1012.57047
Figure 15 a, cPatu shiluensis Lin & Li, 2009 b, dCrassignatha seedam sp. nov. Epigynum, cleared: a, b dorsal view c, d ventral view. Scale bars: 0.03 mm (a, c); 0.05 mm (b, d).
A molecular phylogenetic evaluation of the Ramalina siliquosa complex, with notes on species circumscription and relationships within Ramalina
<p><span><span><span><span><span><span><span><span><span><span><span>Lichens of the <i>Ramalina siliquosa</i> complex dominate seashore cliffs in Europe and Southeast Asia, but their taxonomy has been vigorously debated for over a century. On many cliffs, they exhibit a bewildering zonation of chemotypes that resembles the classic zonation of organisms that occupy the littoral zone below. Do the chemotypes represent separate species, or infraspecific variation? To better understand the systematics of this group, sequences from four genetic loci (ITS, IGS RPB1 and RPB2) were obtained for 59 samples from Denmark, France, Iceland, Norway, the UK, Japan and Korea, including all major chemotypes. Maximum likelihood analysis of these sequences, together with sequences from 36 other <i>Ramalina</i> species, reveals that the complex comprises two distinct phylogenetic lineages, each including multiple chemotypes. These two putative species-level lineages correspond to the currently accepted taxa <i>R. cuspidata</i> and <i>R. siliquosa</i>. There is no evidence that these two species are phylogenetic sister species. Because of this, the explanation of this chemotype complex as an example of "sibling speciation" is rejected. Specimens traditionally called "<i>R</i>.<i> siliquosa</i>" from Southeast Asia form a third clade, identified here as <i>R</i>.<i> semicuspidata</i>, with an additional, divaricatic acid chemotype. Other results include a robustly supported clade of <i>Ramalina</i> species that produce medullary depsides and depsidones; this clade includes another well-supported clade of southeastern United States coastal plain and tropical <i>Ramalina</i> species. By contrast, large, strap-shaped <i>Ramalina </i>species that lack medullary depsides and depsidones occur in separate lineages. In addition, close relationships between the following groups of species are indicated: <i>R. farinacea</i> with <i>R. subfarinacea</i>; <i>R</i>.<i> fraxinea</i> with <i>R. leptocarpha</i>, <i>R. menziesii</i> and <i>R. subleptocarpha</i>; and <i>R. sinensis</i> with <i>R. unifolia</i>. Further, a new, variolaric-only chemotype is reported for <i>R</i>.<i> farinacea</i>; and a new, acid-deficient chemotype is reported for a more broadly circumscribed <i>R. culbersoniorum</i>.</span></span></span></span></span></span></span></span></span></span></span></p>
FIGURES 68–69. 68. A in The circumscription of the generic concept of Aximopsis Ashmead (Hymenoptera: Chalcidoidea: Eurytomidae) with the description of seven new species
FIGURES 68–69. 68. A. pythmenis, gena, lateral. 69. A. pythmenis, propodeum, dorsolateral.
FIGURE 1 in The circumscription of the generic concept of Aximopsis Ashmead (Hymenoptera: Chalcidoidea: Eurytomidae) with the description of seven new species
FIGURE 1. Aximopsis hespenheidei, female, habitus.
FIGURE 4 in A new species of Helietta (Pilocarpinae, Zanthoxyloideae, Rutaceae) from Colombia and notes on the morphology and circumscription of H. glaziovii
FIGURE 4. Geographical distribution of Helietta magna.
FIGURE 1 in A new species of Helietta (Pilocarpinae, Zanthoxyloideae, Rutaceae) from Colombia and notes on the morphology and circumscription of H. glaziovii
FIGURE 1. Isotype of Helietta magna at HUA (Sanín & Jaramillo 7973).
Fig. 3 in Big trees of small baskets: phylogeny of the Australian genus Spyridium (Rhamnaceae: Pomaderreae), focusing on biogeographic patterns and species circumscriptions
Fig. 3. (Caption on next page)
Fig. 2 in Big trees of small baskets: phylogeny of the Australian genus Spyridium (Rhamnaceae: Pomaderreae), focusing on biogeographic patterns and species circumscriptions
Fig. 2. (Caption on next page)
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