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90 results for “Onychophora”
Figure 13 from: Costa CS, Chagas-Jr A, Pinto-da-Rocha R (2018) Redescription of Epiperipatus edwardsii, and descriptions of five new species of Epiperipatus from Brazil (Onychophora: Peripatidae). Zoologia 35: 1-15. https://doi.org/10.3897/zoologia.35.e23366
Figure 13 Seasonal variation in fishing effort. Means and standard deviations of the effort in the presence or absence of dolphins.
Figures 10-12 from: Costa CS, Chagas-Jr A, Pinto-da-Rocha R (2018) Redescription of Epiperipatus edwardsii, and descriptions of five new species of Epiperipatus from Brazil (Onychophora: Peripatidae). Zoologia 35: 1-15. https://doi.org/10.3897/zoologia.35.e23366
Figures 10-12 Expected abundance of Mugilliza for predictors of the gamma model. Number of dolphins (10), month (11) and fishing area (12); the black line indicates the moving average; dark gray areas represent the 95% confidence intervals of the predictions.
Figure 1 from: Costa CS, Chagas-Jr A, Pinto-da-Rocha R (2018) Redescription of Epiperipatus edwardsii, and descriptions of five new species of Epiperipatus from Brazil (Onychophora: Peripatidae). Zoologia 35: 1-15. https://doi.org/10.3897/zoologia.35.e23366
Figure 1 Study area and sampled fishing sectors (sampling sectors) in the Tramandaí River Estuary (TRE) in southern Brazil. The circles represent the sectors sampled.
Figures 8-9 from: Costa CS, Chagas-Jr A, Pinto-da-Rocha R (2018) Redescription of Epiperipatus edwardsii, and descriptions of five new species of Epiperipatus from Brazil (Onychophora: Peripatidae). Zoologia 35: 1-15. https://doi.org/10.3897/zoologia.35.e23366
Figures 8-9 Expected occurrence of Mugilliza for predictors of the binomial model. Number of dolphins (8) and month (9); the black lines indicate the moving averages; dark gray areas represent the 95% confidence intervals of the predictions.
Figure 18 from: Costa CS, Chagas-Jr A, Pinto-da-Rocha R (2018) Redescription of Epiperipatus edwardsii, and descriptions of five new species of Epiperipatus from Brazil (Onychophora: Peripatidae). Zoologia 35: 1-15. https://doi.org/10.3897/zoologia.35.e23366
Figure 18 Seasonal variation in total length (mean and standard deviation) of Mugilliza caught in the presence or absence of dolphins.
Data from: Opsins in Onychophora (velvet worms) suggest a single origin and subsequent diversification of visual pigments in arthropods
<p>Multiple visual pigments, prerequisites for color vision, are found in arthropods, but the evolutionary origin of their diversity remains obscure. In this study, we explore the opsin genes in five distantly related species of Onychophora, using deep transcriptome sequencing and screening approaches. Surprisingly, our data reveal the presence of only one opsin gene (<em>onychopsin</em>) in each onychophoran species, and our behavioral experiments indicate a maximum sensitivity of onychopsin to blue–green light. In our phylogenetic analyses, the onychopsins represent the sister group to the monophyletic clade of visual r-opsins of arthropods. These results concur with phylogenomic support for the sister-group status of the Onychophora and Arthropoda and provide evidence for monochromatic vision in velvet worms and in the last common ancestor of Onychophora and Arthropoda. We conclude that the diversification of visual pigments and color vision evolved in arthropods, along with the evolution of compound eyes—one of the most sophisticated visual systems known.</p>
Figure 8 in Position and development of oocytes in velvet worms shed light on the evolution of the ovary in Onychophora and Arthropoda
Figure 8. Origin and fate of primordial germ cells in Epiperipatus biolleyi (A, B) and Opisthopatus roseus (C, D). Transmission electron micrographs. A, primordial germ cells (pgc) that occur as an unpaired cluster of cells at the posterior end of an early segmenting embryo. Inset shows the position of the cluster (arrow) in a slightly older elongating embryo. B, horizontal section of a coelomic cavity with primordial germ cells associated with the visceral coelomic lining (cl) in an embryo with a full number of somites developed. Anterior is up, mid-line is left. C, horizontal section of a coelomic lining with associated primordial germ cells in an embryo with the full number of somites. D, detail of a primordial germ cell, which is covered by slender processes of coelomic lining cells towards the coelomic cavity (co). Arrowhead indicates an apical junction. Abbreviations: bc, primary body cavity; cl, coelomic lining cells; co, coelomic cavity; en, endoderm; mt, mitochondria; nu, nucleus; pgc, primordial germ cells.
Figure 2 in Position and development of oocytes in velvet worms shed light on the evolution of the ovary in Onychophora and Arthropoda
Figure 2. External organization of the three major types of ovaries and associated structures in Onychophora. Scanning electron micrographs, ventral view, anterior upmost. A, exogenous ovary of Peripatopsis balfouri (Peripatopsidae, South Africa). Arrowheads indicate 'grape-like', stalked oocytes projecting from the ovarian surface. B, pseudoendogenous ovary of Metaperipatus inae (Peripatopsidae, Chile). Note the absence of stalked oocytes on the ovarian surface, which consequently appears smooth. C, endogenous ovary of Epiperipatus biolleyi (Peripatidae, Costa Rica) with a smooth ovarian surface. Abbreviations: lg, suspensory ligament; od, oviduct; of, ovarian funnel; ov, ovary; rs, seminal receptacle.
Figure 2 from: Oliveira I, Read V, Mayer G (2012) A world checklist of Onychophora (velvet worms), with notes on nomenclature and status of names. ZooKeys 211: 1-70. https://doi.org/10.3897/zookeys.211.3463
Figure 2 - Overview map with type localities of valid onychophoran species worldwide. The type localities of the Peripatidae species are indicated by blue dots, those of the Peripatopsidae species by red dots.
Figure 1 from: Oliveira I, Read V, Mayer G (2012) A world checklist of Onychophora (velvet worms), with notes on nomenclature and status of names. ZooKeys 211: 1-70. https://doi.org/10.3897/zookeys.211.3463
Figure 1 - Diagram illustrating the number of species descriptions of Onychophora per year since the very first description of an onychophoran species by Guilding (1826). Note the numerous gaps in the taxonomical work.
Figure 3 from: Oliveira I, Read V, Mayer G (2012) A world checklist of Onychophora (velvet worms), with notes on nomenclature and status of names. ZooKeys 211: 1-70. https://doi.org/10.3897/zookeys.211.3463
Figure 3 - Overview map withlocalities of onychophoran species regarded as nomina dubia in the present work. Note that the localities of these species are imprecise. The localities of the Peripatidae species are indicated in blue, those of the Peripatopsidae species in red. Numbers refer to the following species: 1 Paraperipatus amboinensis Pflugfelder, 1948 2 Paraperipatus stresemanni Bouvier, 1914b 3 Paraperipatus leopoldi Leloup, 1931 4 Paraperipatus schultzei Heymons, 19125 Peripatoides morgani Trewick, 1998 6 Peripatoides novaezealandiae (Hutton, 1876) 7 Peripatoides aurorbis Trewick, 1998 8 Peripatoides sympatrica Trewick, 1998 9 Ooperipatellus cryptus Jackson & Taylor, 1994 10 Paropisthopatus costesi (Gravier & Fage, 1925) 11 Metaperipatus blainvillei (Gervais, 1837) 12 Oroperipatus peruanus (Grube, 1876) 13 Oroperipatus quitensis (Schmarda, 1871) 14 Oroperipatus goudoti (Bouvier, 1899c) 15 Epiperipatus nicaraguensis (Bouvier, 1900a) 16 Peripatus antiguensis Bouvier, 1899c 17 Peripatus bavaysi Bouvier, 1899c 18 Macroperipatus geayi (Bouvier, 1899c) 19 Epiperipatus tucupi (Froehlich, 1968) 20 Eoperipatus sumatranus (Sedgwick, 1888).
Figure 3 from: Espinasa L, Garvey R, Espinasa J, Fratto CA, Taylor SJ, Toulkeridis T, Addison A (2015) Cave dwelling Onychophora from a Lava Tube in the Galapagos. Subterranean Biology 15: 1-10. https://doi.org/10.3897/subtbiol.15.8468
Figure 3 - Within the lava tube food web, cave velvet worms appear to be successful predators. This cave specimen was observed apparently feeding on a pill bug (Isopoda: Oniscoidea: Armadillidae). The cave population of the onlychophoran is thought to be large, estimated in at least the hundreds. (Photo by Rickard S. Toomey III).
Figure 4 from: Espinasa L, Garvey R, Espinasa J, Fratto CA, Taylor SJ, Toulkeridis T, Addison A (2015) Cave dwelling Onychophora from a Lava Tube in the Galapagos. Subterranean Biology 15: 1-10. https://doi.org/10.3897/subtbiol.15.8468
Figure 4 - A velvet worm from beneath a stone on the surface on Santa Cruz island, Galapagos Islands. The 16S rRNA of these animals was found to be identical to those found in Kubler Cave.
Figure 2 from: Espinasa L, Garvey R, Espinasa J, Fratto CA, Taylor SJ, Toulkeridis T, Addison A (2015) Cave dwelling Onychophora from a Lava Tube in the Galapagos. Subterranean Biology 15: 1-10. https://doi.org/10.3897/subtbiol.15.8468
Figure 2 - A typically dark-pigmented individual from the population of velvet worms inhabiting Kubler Cave on Santa Cruz island, Galapagos Islands.
Figure 1 from: Espinasa L, Garvey R, Espinasa J, Fratto CA, Taylor SJ, Toulkeridis T, Addison A (2015) Cave dwelling Onychophora from a Lava Tube in the Galapagos. Subterranean Biology 15: 1-10. https://doi.org/10.3897/subtbiol.15.8468
Figure 1 - A Location of the Galapagos Islands B Archipelago of the Galapagos. Samples collected were from the island of Santa Cruz C Yellow pins indicate the surface locality and Kubler cave where samples were collected D In blue, overlaid contour of the map of Kubler cave. Notice that the cave is within the city limits of Puerto Ayora.
Figure 8 from: Le Bras G, Geoffroy J-J, Albenga L, Mauriès J-P (2015) The Myriapoda and Onychophora collection (MY) of the Muséum national d'Histoire naturelle (MNHN, Paris). ZooKeys 518: 139-153. https://doi.org/10.3897/zookeys.518.10223
Figure 8 - Origins of the onychophoran lots in the MNHN-MY dataset. Based on the 191 lots bearing information on country of origin, out of 202 lots in the dataset (entries up to 27.01.2015)
Figure 7 from: Le Bras G, Geoffroy J-J, Albenga L, Mauriès J-P (2015) The Myriapoda and Onychophora collection (MY) of the Muséum national d'Histoire naturelle (MNHN, Paris). ZooKeys 518: 139-153. https://doi.org/10.3897/zookeys.518.10223
Figure 7 - Origins of the myriapod lots containing type specimens in the MNHN-MY dataset. Based on the 1 137 lots of type specimens bearing information on country of origin, out of 1 170 lots containing types in the dataset (entries up to 27.01.2015)
Figure 5 from: Le Bras G, Geoffroy J-J, Albenga L, Mauriès J-P (2015) The Myriapoda and Onychophora collection (MY) of the Muséum national d'Histoire naturelle (MNHN, Paris). ZooKeys 518: 139-153. https://doi.org/10.3897/zookeys.518.10223
Figure 5 - Origins of the myriapod lots collected prior to 1933 in the MNHN-MY dataset. Based on the 3 548 lots bearing information on country of origin, out of 3 559 lots collected before 1933 in the dataset (entries up to 27.01.2015)
Figure 2 from: Le Bras G, Geoffroy J-J, Albenga L, Mauriès J-P (2015) The Myriapoda and Onychophora collection (MY) of the Muséum national d'Histoire naturelle (MNHN, Paris). ZooKeys 518: 139-153. https://doi.org/10.3897/zookeys.518.10223
Figure 2 - Taxonomic coverage (by class) of the MNHN-MY dataset in terms of number of specimens. (Entries up to 27.01.2015)
Figure 4 from: Le Bras G, Geoffroy J-J, Albenga L, Mauriès J-P (2015) The Myriapoda and Onychophora collection (MY) of the Muséum national d'Histoire naturelle (MNHN, Paris). ZooKeys 518: 139-153. https://doi.org/10.3897/zookeys.518.10223
Figure 4 - Origins of the myriapod lots in the MNHN-MY dataset. Based on the 9 587 lots bearing information on country of origin, out of 9 795 lots in the dataset (entries up to 27.01.2015)
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Allen Brain Atlas
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.