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350 results for “Guiana Shield”
FIGURE 3 in A new species of Limatulichthys Isbrücker & Nijssen (Loricariidae, Loricariinae) from the western Guiana Shield
FIGURE 3. Abdominal plates pattern in (A) Limatulichthys griseus and (B) Limatulichthys nasarcus n. sp. AAP= Anterior abdominal plates; CAP= Central abdominal plates.
FIGURE 4 in A new species of Limatulichthys Isbrücker & Nijssen (Loricariidae, Loricariinae) from the western Guiana Shield
FIGURE 4. Lateral view of head of Limatulichthys nasarcus n. sp. (holotype) showing characteristically dark and large spots along the lateral margin (photo by NKL).
FIGURE 2 in A new species of Limatulichthys Isbrücker & Nijssen (Loricariidae, Loricariinae) from the western Guiana Shield
FIGURE 2. Holotype of Limatulichthys nasarcus n. sp., MCNG 56560, 150.9 mm SL, Venezuela, Orinoco River drainage, Ventuari River, beach below Raudales Tencua, 56 km ESE of San Juan de Manapiare, latitude 05°2'59''N, 065°40'20''W, N.K. Lujan, O. Leon and R. Pajua, 19–20 April 2004 (photo by NKL).
FIGURE 1 in A new species of Limatulichthys Isbrücker & Nijssen (Loricariidae, Loricariinae) from the western Guiana Shield
FIGURE 1. Holotype of Limatulichthys griseus, FMNH 53077, 131 mm SL. Conawaruk (=Konawaruk), Guyana. Photos by M.W. Littman, reprinted from FMNH website with permission.
FIGURE 2 in Redescription of Astyanax guianensis Eigenmann 1909 (Characiformes: Characidae), a poorly known and widespread fish from the Amazon, Orinoco and Guiana Shield drainages
FIGURE 2. Upper and lower jaws of Astyanax guianensis (medial view, right side), MZUSP 109674, 46.7 mm SL. Coronomeckelian bone is missing.
FIGURE 1 in Redescription of Astyanax guianensis Eigenmann 1909 (Characiformes: Characidae), a poorly known and widespread fish from the Amazon, Orinoco and Guiana Shield drainages
FIGURE 1. Astyanax guianensis: (a) holotype, FMNH 51518, 41.0 mm SL, Guyana, rio Essequibo basin; (b) MZUSP 25526, 53.3. mm SL, Brazil, Pará, rio Tapajós basin; (c) MZUSP 115554, 35.7 mm SL, Brazil, Mato Grosso, rio Guaporé basin; and (d) live specimen, Brazil, Amazonas, rio Negro at Santa Isabel do Rio Negro, not preserved.
FIGURE 3 in Redescription of Astyanax guianensis Eigenmann 1909 (Characiformes: Characidae), a poorly known and widespread fish from the Amazon, Orinoco and Guiana Shield drainages
FIGURE 3. Distribution of Astyanax guianensis in the Guiana Shield drainages, Amazon, and Orinoco basins. Type locality is represented by the star.
FIGURE 6. Ambrysus shorti n in New taxa of Cryphocricinae (Heteroptera: Naucoridae) from the Guiana Shield: Hygropetrocoris Sites, n. gen. and two new species of Ambrysus Stål
FIGURE 6. Ambrysus shorti n. sp. (A) dorsal habitus; (B) 6th and 7th abdominal terga; (C) 8th abdominal tergum showing medial pseudoparameres; (D) pygophore with phallosoma and parameres with (left) and without (right) terga IX and X (proctiger), size bar = 0.5 mm.
FIGURE 5. Ambrysus brunneus n in New taxa of Cryphocricinae (Heteroptera: Naucoridae) from the Guiana Shield: Hygropetrocoris Sites, n. gen. and two new species of Ambrysus Stål
FIGURE 5. Ambrysus brunneus n. sp. (A) dorsal habitus; (B) terminal abdominal sterna, yellow arrow indicates digitate lobe of laterosternite VI; (C) subgenital plate (colored) with remainder of terminal segments (grayscale).
FIGURE 4 in New taxa of Cryphocricinae (Heteroptera: Naucoridae) from the Guiana Shield: Hygropetrocoris Sites, n. gen. and two new species of Ambrysus Stål
FIGURE 4. Type locality of Hygropetrocoris guyana n. gen. and Ambrysus brunneus n. sp. showing (A) general habitat and (B) specific habitat of H. guyana, which is in the center of the bedrock of Fig. 4A. A. brunneus most likely was collected in small pools or rootmats of the vegetation on the left margin of the bedrock.
FIGURE 2 in New taxa of Cryphocricinae (Heteroptera: Naucoridae) from the Guiana Shield: Hygropetrocoris Sites, n. gen. and two new species of Ambrysus Stål
FIGURE 2. Features of Hygropetrocoris guyana n. gen. (A) left hemelytron showing hair lines and hair patches on corium and embolium (yellow arrows); (B) lateral view showing 70 degree orientation of head with respect to the pronotum and marginal tufts of dark setae; (C) frontal view of head and prothoracic legs; (D) dorsal view of right prothoracic leg. cls = claval suture, ics = intraclaval suture, IV = abdominal segment IV.
FIGURE 3 in New taxa of Cryphocricinae (Heteroptera: Naucoridae) from the Guiana Shield: Hygropetrocoris Sites, n. gen. and two new species of Ambrysus Stål
FIGURE 3. Features of Hygropetrocoris guyana n. sp. (A) 6th and 7th abdominal terga; (B) 8th abdominal tergum showing medial black pseudoparameres; (C) pygophore with phallosoma and parameres with (left) and without (right) terga IX and X (proctiger), size bar = 0.5 mm; (D) ventral surface of phallosoma.
FIGURE 2 in A new Dendropsophus Fitzinger, 1843 (Anura: Hylidae) of the parviceps group from the lowlands of the Guiana Shield
FIGURE 2. Phylogram (50% majority rule consensus with frequencies of all observed bipartitions) hypothesized from Bayesian analysis using 1455 bp of mtDNA sequences of species of the genus Dendropsophus. Posterior probabilities are indicated before each node (* indicates pp = 1.0 and 0.99 and pp <0.5 are not indicated). Species of the D. parviceps group are in bold and the D. parviceps clade is indicated. Within this clade, specimens for which photos are shown are in bold and specimens for which audio record is available are indicated with **.
FIGURE 5 in A new Dendropsophus Fitzinger, 1843 (Anura: Hylidae) of the parviceps group from the lowlands of the Guiana Shield
FIGURE 5. Sonograms of five Amazonian species of the Dendropsophus parviceps group. Recording of D. counani sp. nov. is from a male (SVL = 19.9 mm; MNHN2015.0114) from Inini, French Guiana. Records of D. parviceps and D. koechlini are from Cocroft et al. (2001).
FIGURE 6 in A new Dendropsophus Fitzinger, 1843 (Anura: Hylidae) of the parviceps group from the lowlands of the Guiana Shield
FIGURE 6. Dendropsophus counani sp. nov. tadpole: a) mouth and b) lateral view of specimen raised from a clutch collected at Kotika, French Guiana (MB field number AG419A) preserved at stage 31; c) lateral and dorsal views of a living specimen at stage 36 raised with AG419A; d) mature clutch hanging over water containing 50 eggs photographed at Sipaliwini, Suriname.
FIGURE 1 in A new Dendropsophus Fitzinger, 1843 (Anura: Hylidae) of the parviceps group from the lowlands of the Guiana Shield
FIGURE 1. Occurrence records of Dendropsophus counani sp. nov. Black dots represent presence records (1–10) with material included (specimens, DNA -type locality represented with a large dot) and white dots (11–29) represent additional occurrence records: Grande Montagne Tortue (1), Arataie (2), Saut Aikoupai (3), Kaw (4), Saül (5), Inini (6), Kotika (7), Sipaliwini (8), Mabura (9), Nassau mountain (10), UHE Santo Antonio (11), Saut Tamanoir (12), Crique Saint-Pierre (13), Crique Grégoire (14), Trinité Aimara (15), Trinité Aya (16), Montagne Nivrée Dorlin (17), Haut Inini (18), Flat de la Waki (19), Cascades Voltaires (20), Mitaraka (21), Région de Trois Sauts (22), Montagne Trésor (23), Crique Wapou (24), Memora (25), Bakhuis mountains (26), Kabalebo (27), Tributary Kabalebo River (28), Konawaruk Camp (29).
FIGURE 3. a–c in A new Dendropsophus Fitzinger, 1843 (Anura: Hylidae) of the parviceps group from the lowlands of the Guiana Shield
FIGURE 3. a–c) Holotype (MNHN2015.0101) of Dendropsophus counani sp. nov.; d) calling male (not collected); e) extended axillary membrane (MNHN2015.0112).
FIGURE 4 in A new Dendropsophus Fitzinger, 1843 (Anura: Hylidae) of the parviceps group from the lowlands of the Guiana Shield
FIGURE 4. Dorsal and ventral views of seven specimens of the type series of Dendropsophus counani sp. nov.
FIGURE 9 in A new genus of egg case-carrying water scavenger beetle from the Guiana Shield (Coleoptera: Hydrophilidae: Acidocerinae)
FIGURE 9. Habitat of Radicitus spp. in Venezuela. A) Venezuela, Bolivar State, 25 km E. El Burro (collecting event AS-08- 077). B) Specimen of R. granitum clinging to root mat that was pulled from the margin of the seepage shown in A. C) Venezuela: Bolivar State, 15 km NE Pijiguaos (collecting event VZ10-0709-01B). D) Venezuela, Amazonas State, Tobogan de la Selva (collecting event AS-06-017).
FIGURE 7 in A new genus of egg case-carrying water scavenger beetle from the Guiana Shield (Coleoptera: Hydrophilidae: Acidocerinae)
FIGURE 7. Aedeagi of Radicitus spp. A) R. ayacucho, B) R. surinamensis, C) R. cf. granitum (Suriname), D) R. granitum (Venezuela).
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International Brain Laboratory public data
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OpenNeuro
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