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14 results for “Synotaxus”
Linked collectors and determiners for: Four new species and new records for the spider genus Synotaxus Simon, 1895 (Araneae: Synotaxidae) from Brazil.
Natural history specimen data linked to collectors and determiners held within, "Four new species and new records for the spider genus Synotaxus Simon, 1895 (Araneae: Synotaxidae) from Brazil". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/7d4ed157-5d66-4ff5-a829-b49cdab6f8ec">https://bionomia.net/dataset/7d4ed157-5d66-4ff5-a829-b49cdab6f8ec</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/7d4ed157-5d66-4ff5-a829-b49cdab6f8ec">https://gbif.org/dataset/7d4ed157-5d66-4ff5-a829-b49cdab6f8ec</a>. Formatted as a Frictionless Data package.
Figure 1. Synotaxus. A, B, S in Morphological phylogeny of cobweb spiders and their relatives (Araneae, Araneoidea, Theridiidae)
Figure 1. Synotaxus. A, B, S. monoceros male palp. Character numbers and states typeset in bold here and in subsequent captions. A, ventral; note spur on patella (arrow) (20-1). B, ectal. C, D, S. waiwai male palp. C, ventral. D, tarsal organ, with a small opening (198-0). E–G, Synotaxus waiwai, spinnerets. E, ALS. F, PLS and PMS; note large (214-1) but not flattened AGs (215-0, 216-0). G, CY, the fusule bears no distinct base (221-1). Scale bars: A–C, 100 Mm; D–G, 10 Mm.
FIGURE 19 in Four new species and new records for the spider genus Synotaxus Simon, 1895 (Araneae: Synotaxidae) from Brazil
FIGURE 19. Geographical distribution records for Synotaxus species: a, S. brescoviti; b, S. bonaldoi; c, S. siolii; d, S. itabaiana; e, S. longicaudatus; f, S. monoceros; g, S. waiwai.
FIGURES 3–6. Synotaxus brescoviti n in Four new species and new records for the spider genus Synotaxus Simon, 1895 (Araneae: Synotaxidae) from Brazil
FIGURES 3–6. Synotaxus brescoviti n. sp.. 3. Male palp, ventral view. 4. Ditto, lateral view. 5. Female epigynum, ventral view. 6. Female internal genitalia, dorsal view. Scales: 0.1 mm. AS, Accessory sac; E, embolus; FD, fertilization ducts; PA, patellar apophysis; Pc, paracymbium; PP, patellar projection; TTA, theridioid tegular apophysis.
FIGURES 15–18. Synotaxus itabaiana n in Four new species and new records for the spider genus Synotaxus Simon, 1895 (Araneae: Synotaxidae) from Brazil
FIGURES 15–18. Synotaxus itabaiana n. sp. 15. Male palp, ventral view. 16. Ditto, lateral view. 17. Female epigynum, ventral view. 18. Female internal genitalia, dorsal view. Scales: 0.1 mm.
FIGURES 11–14. Synotaxus siolii n in Four new species and new records for the spider genus Synotaxus Simon, 1895 (Araneae: Synotaxidae) from Brazil
FIGURES 11–14. Synotaxus siolii n. sp. 11. Male palp, ventral view. 12. Ditto, lateral view. 13. Female epigynum, ventral view. 14. Female internal genitalia, dorsal view. FD, fertilization ducts. Scales: 0.1 mm.
FIGURE 5 in A new species of Synotaxus and the first chromosomal study on Synotaxidae, presenting a rare XY sex chromosome system in spiders (Araneae, Araneoidea)
FIGURE 5. Mitotic telocentric chromosomes of Synotaxus jaraguari n. sp. A, Spermatogonial metaphase 2n♂ = 22 + XY. B– C, Oogonial metaphases. B, 2n♀= 22 + XX. C. 2n♀ = 26. Scale bar, 5 µm.
FIGURE 4. Synotaxus jaraguari n in A new species of Synotaxus and the first chromosomal study on Synotaxidae, presenting a rare XY sex chromosome system in spiders (Araneae, Araneoidea)
FIGURE 4. Synotaxus jaraguari n. sp. A. Male palp, ventral view. B, Ditto, retrolateral view. C, Epigynum, ventral view. D, Female internal genitalia, dorsal view. Abbreviations: AB, Anterior border of epigynum; AS, Accessory sac; MA, Median apophysis; PA, Patellar apophysis; PC, Paracymbium; PP, Patellar projection, TTA, Theridioid tegular apophysis; FD, Fertilization ducts; SP, Spermathecae. Scale bar, 0.5 mm.
FIGURE 7 in A new species of Synotaxus and the first chromosomal study on Synotaxidae, presenting a rare XY sex chromosome system in spiders (Araneae, Araneoidea)
FIGURE 7. Scheme showing hypothetical origin of the karyotype 2n♂ = 22 + XY, found in Synotaxus jaraguari n. sp.
FIGURE 6 in A new species of Synotaxus and the first chromosomal study on Synotaxidae, presenting a rare XY sex chromosome system in spiders (Araneae, Araneoidea)
FIGURE 6. Chromosomes of Synotaxus jaraguari n. sp., male. A–C, Giemsa stained. D, Silver nitrate impregnation. A–B, Diplotenes, with 11 autosomal bivalents + XY, showing the achiasmatic association between X and Y (A, photo and inset) and its early segregation (B). C, Metaphase II with n = 12. D, Spermatogonial metaphase, with 2n♂ = 24, highlighting the Nucleolar Organizer Regions (arrows). Scale bar, 5 µm.
FIGURE 3. Synotaxus jaraguari n in A new species of Synotaxus and the first chromosomal study on Synotaxidae, presenting a rare XY sex chromosome system in spiders (Araneae, Araneoidea)
FIGURE 3. Synotaxus jaraguari n. sp., male palp. A, Theridioid tegular apophysis, lateral view. B–D, Paracymbium and patelar apophysis. B, Lateral view. C, Ventro-lateral view. D, Detail, ventral view. Abbreviations: C, Cymbium; PA, Patellar apophysis; PC, Paracymbium; PP, Patellar projection, TTA, Theridioid tegular apophysis.
FIGURE 2. Synotaxus jaraguari n in A new species of Synotaxus and the first chromosomal study on Synotaxidae, presenting a rare XY sex chromosome system in spiders (Araneae, Araneoidea)
FIGURE 2. Synotaxus jaraguari n. sp. A–D, Male. A, Carapace, frontal view. B, Lateral view. C, Horn, detail, frontal view. D, Lateral view. E–F, Palp. E, Ventral view. F, Theridioid tegular apophysis, detail. Abbreviations: E, embolus; TTA, Theridioid tegular apophysis.
FIGURE 1. Synotaxus brescoviti n in Four new species and new records for the spider genus Synotaxus Simon, 1895 (Araneae: Synotaxidae) from Brazil
FIGURE 1. Synotaxus brescoviti n. sp., male palp. Figure 2. Synotaxus bonaldoi n. sp., male palp.
FIGURE 1 in A new species of Synotaxus and the first chromosomal study on Synotaxidae, presenting a rare XY sex chromosome system in spiders (Araneae, Araneoidea)
FIGURE 1. Female specimen of Synotaxus jaraguari n. sp., dorsal view. Scale bar, 4 mm.
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