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112 results for “Ancistrus”
FIGURE 2 in A new species of Ancistrus (Siluriformes: Loricariidae) from Tapajós and Xingu basins, Brazil
FIGURE 2 | Ancistrus luzia, paratype, MNRJ 24622, cs, female, 48.9 mm SL, showing the subdermal platelets bordering the naked margin of snout. Arrows indicate platelets.
FIGURE 4 in A new species of Ancistrus (Siluriformes: Loricariidae) from Tapajós and Xingu basins, Brazil
FIGURE 4 | Lateral view of Ancistrus luzia, MNRJ 35505, 71.6 mm SL, rio Curuá, Xingu basin. A. Preserved specimen. B. Specimen in life.
FIGURE 3 in A new species of Ancistrus (Siluriformes: Loricariidae) from Tapajós and Xingu basins, Brazil
FIGURE 3 | Color pattern of juvenile specimens of Ancistrus luzia. A, B. MZUSP 99877, 33.2 mm SL, from rio Teles Pires basin. C, D. MNRJ 35504, 37.5 mm SL, from the rio Curuá, rio Xingu basin.
FIGURE 1 in A new species of Ancistrus (Siluriformes: Loricariidae) from Tapajós and Xingu basins, Brazil
FIGURE 1 | Ancistrus luzia, holotype, MNRJ 51458, male, 75.9 mm SL, Brazil, Mato Grosso, Guarantã do Norte, a tributary of rio Teles Pires, Tapajós basin. Black spots in the ventral view are parasites.
FIGURE 1 in Comparative cytogenetic analyses in Ancistrus species (Siluriformes: Loricariidae)
FIGURE 1 | Karyotypes of Ancistrus aguaboensis (A–B) and Ancistrus cf. multispinis (C–D) submitted do Giemsa staining (A–C) and C-banding (B–D). The chromosomes pairs with NORs sites are evidenced in the figure details (boxes). Bar = 10 µm.
FIGURE 2 in Comparative cytogenetic analyses in Ancistrus species (Siluriformes: Loricariidae)
FIGURE 2 | Karyotypes of Ancistrus aguaboensis (A–B) and Ancistrus cf. multispinis (C–D) submitted to FISH using 5S rDNA, 18S rDNA and (TTAGGG)n probes. In (A–C), 5S rDNA (in red) and 18S rDNA (in green) sites; in (B–D), terminal red markers evidenced (TTAGGG)n sites. Bar = 10 µm.
Linked collectors and determiners for: Review of Ancistrus (Siluriformes: Loricariidae) from the northwestern Guiana Shield, Orinoco Andes, and adjacent basins with description of six new species.
Natural history specimen data linked to collectors and determiners held within, "Review of Ancistrus (Siluriformes: Loricariidae) from the northwestern Guiana Shield, Orinoco Andes, and adjacent basins with description of six new species". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/537cc788-42c7-46ad-86e1-74e539b0ce74">https://bionomia.net/dataset/537cc788-42c7-46ad-86e1-74e539b0ce74</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/537cc788-42c7-46ad-86e1-74e539b0ce74">https://gbif.org/dataset/537cc788-42c7-46ad-86e1-74e539b0ce74</a>. Formatted as a Frictionless Data package.
Fig. 5 in Reproductive behavior, development and eye regression in the cave armored catfish, Ancistrus cryptophthalmus Reis, 1987 (Siluriformes: Loricariidae), breed in laboratory
Fig. 5. Left eye size (diameter, in mm) versus total length (in mm) in the seven specimens (respectively a to g) of Ancistrus cryptophthalmus of the Passa Três 2004 offspring.
Fig. 2 in Reproductive behavior, development and eye regression in the cave armored catfish, Ancistrus cryptophthalmus Reis, 1987 (Siluriformes: Loricariidae), breed in laboratory
Fig. 2. Size (total length, in mm) versus age (in days) in four specimens of Ancistrus cryptophthalmus from Passa Três Cave born in laboratory in March 2003.
Fig. 4 in Reproductive behavior, development and eye regression in the cave armored catfish, Ancistrus cryptophthalmus Reis, 1987 (Siluriformes: Loricariidae), breed in laboratory
Fig. 4. Size (total length, in mm) versus age (in days) of two wild caught specimens of Ancistrus cryptophthalmus from Angélica Cave kept in laboratory.
Fig. 1 in Reproductive behavior, development and eye regression in the cave armored catfish, Ancistrus cryptophthalmus Reis, 1987 (Siluriformes: Loricariidae), breed in laboratory
Fig. 1. (a) Reproductive adults of Ancistrus cryptophthalmus from Passa Três Cave kept in laboratory: two females (to the left) and male (to the right, dorso-posterior region of the head red-colored); arrow indicates the entrance of the shelter occupied by the male. Photograph taken on April 2004. (b) Cluster of eggs adhered to the ceiling of the shelter, average diameter = 4.0 mm. (c) Area around the shelter entrance (within the white circle) defended by the male (close to the center of the circle). (d) Clockwise from the top left: embrio (eyes visible), newly hatched larva (10.4 mm TL), more advanced larva (12.5 mm TL), with yolk-sac almost completely absorbed. (e) Top: 53 mm long juvenile from Passa Três Cave, with regressed eyes; arrow indicates the orbit reduced to a small depression covered with skin. Bottom: 53 mm long juvenile from Angélica Cave, probable the same age as the former, showing non-regressed eyes. (f) Detail of the head of the juvenile from Passa Três; arrows indicate the first primordia of tentacles.
Fig. 6 in Reproductive behavior, development and eye regression in the cave armored catfish, Ancistrus cryptophthalmus Reis, 1987 (Siluriformes: Loricariidae), breed in laboratory
Fig. 6. Eye size (diameter, in mm) versus age (in days) in three selected specimens (from left to right) of Ancistrus cryptophthalmus from Passa Três Cave; right eye on the top, left eye on the bottom.
Fig. 4 in Two new Amazonian species of armored catfishes (Siluriformes: Loricariidae): Ancistrus verecundus and Ancistrus parecis
Fig. 4. Dorsal view of caudal peduncle in (a) Ancistrus verecundus, MCP 35573, paratype, 54.6 mm SL and (b) Ancistrus parecis, MCP 35570, holotype, 59.5 mm SL. Arrows indicate dermal plates of dorsal series of plates between the end of postdorsal ridge and the origin of the first plate-like procurrent caudal-fin ray.
Fig. 3. Ancistrus parecis, MCP 35570 in Two new Amazonian species of armored catfishes (Siluriformes: Loricariidae): Ancistrus verecundus and Ancistrus parecis
Fig. 3. Ancistrus parecis, MCP 35570, holotype, male, 59.5 mm SL; rio Formiga, upper rio Tapajós basin, Campos de Júlio, Mato Grosso, Brazil.
Fig. 1 in Two new Amazonian species of armored catfishes (Siluriformes: Loricariidae): Ancistrus verecundus and Ancistrus parecis
Fig. 1. Collecting localities of Ancistrus verecundus (circle) from the upper rio Madeira, Ancistrus parecis (squares) and Ancistrus tombador (diamond) from the upper rio Tapajós, and Ancistrus jataiensis (triangle) and Ancistrus reisi (star), from the upper rio Tocantins. Open symbols represent type localities. Some symbols represent more than one locality.
FIGURE 4 in A new species of Ancistrus (Siluriformes: Loricariidae), with a redescription of Ancistrus brevipinnis and further evidence of hidden diversity in the laguna dos Patos system, Brazil
FIGURE 4 | Arroio Cambaizinho, showing typical habitat of Ancistrus megacanthus.
FIGURE 8 in A new species of Ancistrus (Siluriformes: Loricariidae) from Tapajós and Xingu basins, Brazil
FIGURE 8 | Geographic distribution of Ancistrus luzia. Star represents its type locality.
FIGURE 5 in A new species of Ancistrus (Siluriformes: Loricariidae) from Tapajós and Xingu basins, Brazil
FIGURE 5 | Ancistrus luzia in life, MZUSP 96564, rio Teles Pires, rio Tapajós basin.
Fig. 7 in Reproductive behavior, development and eye regression in the cave armored catfish, Ancistrus cryptophthalmus Reis, 1987 (Siluriformes: Loricariidae), breed in laboratory
Fig. 7. Summary of the life cycle of Ancistrus cryptophthalmus from Passa Três Cave.
FIGURES 1–10. Atopogyrodactylus praecipuus n. gen., n in Neotropical Monogenoidea. 63. Atopogyrodactylus praecipuus gen. et sp. n. (Gyrodactylidae), an oviparous gyrodactylid from the external surface of a bristlenose catfish Ancistrus sp. (Siluriformes: Loricariidae) from the Rondônian Amazon, Brazil
FIGURES 1–10. Atopogyrodactylus praecipuus n. gen., n. sp. from the external surface of a bristlenose catfish, Ancistrus sp. in Brazil. 1. Whole mount of adult, composite, ventral view. 2, 3. Accessory copulatory sclerites. 4. Terminal genitalia (male and female) of an immature specimen. 5. Whole mount of immature specimen (composite, ventral view). 6. Hook. 7. Egg. 8. Oviduct. 9. Anchor. 10. Haptor. Abbreviations: mco, male copulatory organ; as, accessory copulatory sclerite; vit, vitelline follicle; g, germarium; sv, seminal vesicle; ov, oviduct; c, cecum.
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