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122 results for “Xenodontinae”
Figure 1 in Molecular phylogeny of the tribe Philodryadini Cope, 1886 (Dipsadidae: Xenodontinae): Rediscovering the diversity of the South American Racers
Figure 1. Maximum likelihood (ML) tree of Dipsadidae estimated using RAxML. Summary tree with collapsed terminals showing higher-level relationships. Numbers above and below branches indicate bootstrap and posterior probability support values, respectively. Bootstrap values below 70% and posterior probabilities below 85% are not shown. Abbreviations: CA = central Andean; SAE = southern and cis-Andean.
FIG. 3. Enicognathus melanauchen Jan 1863 in A New Genus and New Tribe for Enicognathus melanauchen Jan, 1863, a Neglected South American Snake (Colubridae: Xenodontinae), with Taxonomic Notes on Some Dipsadinae
FIG. 3. Enicognathus melanauchen Jan 1863. Head and neck of holotype (scale line = 5 mm).
Fig. 39 in New Taxa And Cryptic Species Of Neotropical Snakes (Xenodontinae), With Commentary On Hemipenes As Generic And Specific Characters
Fig. 39. Boaedon fuliginosus (Boie), skull of AMNH R-11996, ×3.7.
Fig. 5 in New Taxa And Cryptic Species Of Neotropical Snakes (Xenodontinae), With Commentary On Hemipenes As Generic And Specific Characters
Fig. 5. Eutrachelophis steinbachi (Boulenger). Adult female shown approximately life size (BMNH
Fig. 17 in New Taxa And Cryptic Species Of Neotropical Snakes (Xenodontinae), With Commentary On Hemipenes As Generic And Specific Characters
Fig. 17. The tips of diverse bilobed hemipenes. A. Apical discs on the hemipenis of Liophis
FIGURE 6 in Long known, brand new, and possibly threatened: a new species of watersnake of the genus Helicops Wagler, 1828 (Serpentes; Xenodontinae) from the Tocantins- Araguaia River Basin, Brazil
FIGURE 6. Asulcate (left) and sulcate (right) faces of the fully everted and maximally expanded right hemipenis of the paratype of Helicops phantasma (MZUSP 19319), from the municipality of Carolina, state of Maranh"o, Brazil. Scale bar = 10 mm
FIGURE 7 in Long known, brand new, and possibly threatened: a new species of watersnake of the genus Helicops Wagler, 1828 (Serpentes; Xenodontinae) from the Tocantins- Araguaia River Basin, Brazil
FIGURE 7. Asulcate (right) and sulcate (left) faces of the fully everted and maximally expanded right hemipenis of Helicops leopardinus (UFMT-R 1504) from the municipality of Cuiabá, state Mato Grosso, Brazil (above), and Helicops danieli (AMNH 97461), from state of Bolivar, Colombia. Scale bars = 10 mm.
FIGURE 5 in Long known, brand new, and possibly threatened: a new species of watersnake of the genus Helicops Wagler, 1828 (Serpentes; Xenodontinae) from the Tocantins- Araguaia River Basin, Brazil
FIGURE 5. Localities of record of Helicops phantasma [black (type locality) and white triangles] and of the present sample of He. leopardinus (black circles). Crosses denote areas of hydroelectric dams already installed or projected to the future in the Tocantins-Araguaia Basin. Gray shading illustrates the main hydrographic basins of Central and Northern Brazil (1: Amazon Basin; 2: Tocantins-Araguaia Basin; 3: Atlantico Norte and Nordeste Basins; 4 S"o Francisco Basin; 5: Atlantico Leste Basin, and 6: Paraná Basin).
FIGURE 4 in Long known, brand new, and possibly threatened: a new species of watersnake of the genus Helicops Wagler, 1828 (Serpentes; Xenodontinae) from the Tocantins- Araguaia River Basin, Brazil
FIGURE 4. Dorsal, lateral, and ventral views of the head of the holotype of Helicops phantasma sp. nov. (UFMT-R 8290) from the region of the municipality of Barra do Garças, state of Mato Grosso, Brazil. Scale bar = 10 mm.
FIGURE 3 in Long known, brand new, and possibly threatened: a new species of watersnake of the genus Helicops Wagler, 1828 (Serpentes; Xenodontinae) from the Tocantins- Araguaia River Basin, Brazil
FIGURE 3. Dorsal and ventral views of the holotype of Helicops phantasma sp. nov. (UFMT-R 8290), from the region of the municipality of Barra do Garças, state of Mato Grosso, Brazil. Scale bar = 40 mm.
FIGURE 1 in Long known, brand new, and possibly threatened: a new species of watersnake of the genus Helicops Wagler, 1828 (Serpentes; Xenodontinae) from the Tocantins- Araguaia River Basin, Brazil
FIGURE 1. Illustrations of the syntypes of (A) Helicops leopardinus (Schlegel, 1837) [modified from Jan & Sordelli (1864: f. 2, pl. III)] and (B–C) He. leprieurii Duméril et al., 1854, a junior synonym [modified from Jan & Sordelli (1864: f. 2–3, pl. IV). In both cases, the dorsal pattern consists of rounded black spots.
FIGURE 2 in Long known, brand new, and possibly threatened: a new species of watersnake of the genus Helicops Wagler, 1828 (Serpentes; Xenodontinae) from the Tocantins- Araguaia River Basin, Brazil
FIGURE 2. Phylogenetic relationships of Hydropsini (one species of Hydrops, one species of Pseudoeryx, and 11 species of Helicops) based on a concatenated matrix of the 12S, 16S, BDNF, C-mos, and NT3 sequence data. Numbers at nodes indicate the values of Bayesian Credibility/Maximum Likelihood bootstrap. The bar represents the number of expected changes per site in the Bayesian Analysis. Terminal H1733 corresponds to the voucher MZUSP 19695. The name Helicops pictiventris is currently in the synonymy of He. infrataeniatus, but appears in the tree exactly as the pertinent sequences appear in the GenBank (see Zaher et al. 2009).
FIGURE 6 in A new, brightly colored species of Pseudoboa Schneider, 1801 from the Amazon Basin (Serpentes, Xenodontinae)
FIGURE 6. Schematic representation of head and dorsum color patterns in (A) Pseudoboa serrana, (B) P. haasi, (C) P. martinsi, (D) P. coronata, (E) P. neuwiedii, (F, G) P. nigra. Juvenile and adult patterns shown in left and right columns, respectively. Head towards the right side of each drawing. See text for a detailed explanation.
FIGURE 5 in A new, brightly colored species of Pseudoboa Schneider, 1801 from the Amazon Basin (Serpentes, Xenodontinae)
FIGURE 5. Distribution of Pseudoboa martinsi in the Amazon basin. Abbreviations shown for the following Brazilian states: Pará (Pa), Roraima (Rr), Amazonas (Am), Rondônia (Ro), Acre (Ac), Mato Grosso (Mt).
FIGURE 3. Pseudoboa martinsi, MZUSP 8549 in A new, brightly colored species of Pseudoboa Schneider, 1801 from the Amazon Basin (Serpentes, Xenodontinae)
FIGURE 3. Pseudoboa martinsi, MZUSP 8549 (holotype) fully everted and inflated hemipenis in (A) sulcate and (B) asulcate views. Scale: 10 mm.
FIGURE 2. Pseudoboa martinsi, MZUSP 8549 in A new, brightly colored species of Pseudoboa Schneider, 1801 from the Amazon Basin (Serpentes, Xenodontinae)
FIGURE 2. Pseudoboa martinsi, MZUSP 8549 (holotype) head in (A) dorsal, (B) ventral, and (C) lateral views, and mid-body in (D) left lateral view.
FIGURE 1. Pseudoboa martinsi, MZUSP 8549 in A new, brightly colored species of Pseudoboa Schneider, 1801 from the Amazon Basin (Serpentes, Xenodontinae)
FIGURE 1. Pseudoboa martinsi, MZUSP 8549 (holotype) adult male from Fazenda Porto Alegre, Manaus, State of Amazonas, Brazil, (A) dorsal view, (B) ventral view. Scale: 100 mm.
FIGURE 4 in A new, brightly colored species of Pseudoboa Schneider, 1801 from the Amazon Basin (Serpentes, Xenodontinae)
FIGURE 4. Pseudoboa martinsi, adult specimen from Reserva Florestal Adolfo Ducke, State of Amazonas, Brazil.
FIGURE 5–6 in A new species of Hydrodynastes Fitzinger, 1843 from central Brazil (Serpentes: Colubridae: Xenodontinae)
FIGURE 5–6. Hemipenis of Hydrodynastes melanogigas (IBSP 65383). 5, sulcate; 6, asulcate side. Scale bar 5 mm.
FIGURE 1–4 in A new species of Hydrodynastes Fitzinger, 1843 from central Brazil (Serpentes: Colubridae: Xenodontinae)
FIGURE 1–4. Holotype of Hydrodynastes melanogigas (IBSP 65796). 1, dorsal; 2, ventral view; 3, lateral of the head; 4, dorsum of the head.
ScienceDex guides
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These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
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.