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97 results for “Dipsadinae”
FIGURE 9 in Morphological variation and systematics of Dipsas catesbyi (Sentzen, 1796) and Dipsas pavonina Schlegel, 1837 (Serpentes: Dipsadinae)
FIGURE 9. Cephalic muscle and glands of Dipsas pavonina (MPEG 2740). A—lateral view of head; B—Harder's gland detail. Abreviations: aem—M. adductor mandibulae externus medialis; aep—M. adductor mandibulae externus profundus; aes—M. adductor mandibulae externus superficialis; H.g.—Harder's gland; i.g—infralabial gland; lao—M. levator anguli oris; n.g—nasal gland; p.g—premaxillary gland; pg1—M. superficialis pterigoideus; r.g—rictal gland; s.g—supralabial gland. Scale bar = 5 mm.
FIGURE 1 in A third new species of snake of the genus Omoadiphas (Reptilia, Squamata, Colubridae, Dipsadinae) from Honduras
FIGURE 1. Photograph of dorsal (top) and lateral (bottom) surfaces of the head of the holotype (UNAH 1740) of Omoadiphas cannula.
FIGURA 2 in Uma Nova Espécie Do Gênero Atractus Wagler, 1928 (Colubridae: Dipsadinae) Do Cerrado Do Brasil Central
FIGURA 2. Holótipo de Atractus edioi sp. n.. Vistas dorsal (A), lateral (B) e ventral (C) da cabeça e padrão de colorido dorsal e ventral do corpo (D).
FIGURA 1 in Uma Nova Espécie Do Gênero Atractus Wagler, 1928 (Colubridae: Dipsadinae) Do Cerrado Do Brasil Central
FIGURA 1. Localização da região da UHE Cana Brava no norte do Estado de Goiás. Em detalhe o reservatório e a cidade de Minaçu.
FIGURE 6 in Geographical variation and taxonomy of the snail-eating snake Dipsas albifrons (Sauvage, 1884), with comments on the systematic status of Dipsas albifrons cavalheiroi Hoge, 1950 (Serpentes: Colubridae: Dipsadinae)
FIGURE 6. Sulcate (A) and asulcate (B) sides of hemipenes of Dipsas albifrons. (A, from municipality of Corupá (IBSP 64929), State of Santa Catarina, Brazil (Ruler equals to 5 mm).
FIGURE 5 in Geographical variation and taxonomy of the snail-eating snake Dipsas albifrons (Sauvage, 1884), with comments on the systematic status of Dipsas albifrons cavalheiroi Hoge, 1950 (Serpentes: Colubridae: Dipsadinae)
FIGURE 5. Dorsal (A) and lateral (B) views of the head of Dipsas albifrons (Sauvage, 1884) (IBSP 17746, lectotype). (Ruler equals to 5 mm).
FIGURE 2. Bivariate plot with 95 in Geographical variation and taxonomy of the snail-eating snake Dipsas albifrons (Sauvage, 1884), with comments on the systematic status of Dipsas albifrons cavalheiroi Hoge, 1950 (Serpentes: Colubridae: Dipsadinae)
FIGURE 2. Bivariate plot with 95% confidence regions for the first 2 axes derived from scores of PCA analysis of female (A) and male (B) populations of Dipsas albifrons. (C, D). Black dots = States of Paraná and Santa Catarina; black squares = Queimada Grande Island; and black triangles 3 = State of Espírito Santo.
FIGURE 3 in Geographical variation and taxonomy of the snail-eating snake Dipsas albifrons (Sauvage, 1884), with comments on the systematic status of Dipsas albifrons cavalheiroi Hoge, 1950 (Serpentes: Colubridae: Dipsadinae)
FIGURE 3. Correlations of meristic characters with corresponding principal components (directional cosines) for females (A) and males (B) of Dipsas albifrons; 1 = number of ventral scales, 2 = number of subcaudal scales, 3 = number of supralabial scales, 4 = number of infralabial scales, 5 = number of blotches on the body, and 6 = number of blotches on the tail.
FIGURE 4 in Geographical variation and taxonomy of the snail-eating snake Dipsas albifrons (Sauvage, 1884), with comments on the systematic status of Dipsas albifrons cavalheiroi Hoge, 1950 (Serpentes: Colubridae: Dipsadinae)
FIGURE 4. Bivariate plots of geographical distances in kilometers versus Mahalanobis D morphological distances computed from meristic characters for females (A) and males (B) of Dipsas albifrons.
Figure 3 in Evaluating hypotheses on the origin and diversification of the ringneck snake Diadophis punctatus (Colubridae: Dipsadinae)
Figure 3. Map showing the distribution of each Diadophis punctatus lineage diagnosed by mtDNA variation. Symbols correspond to Figure 1. Dark line corresponds to distribution of D. punctatus throughout the USA and Mexico.
Figure 2 in Evaluating hypotheses on the origin and diversification of the ringneck snake Diadophis punctatus (Colubridae: Dipsadinae)
Figure 2. Simplified tree with the mean dates of origin (in millions of years) for each of the major lineages and haplogroups. Numbers below nodes refer to Table 2. Letters above nodes refer to the optimal reconstructions of ancestral areas; A, Coast Plain east of the Mississippi; B, North-eastern USA; C, west of the Mississippi River to the Rocky Mountains; D, west of the Rocky Mountains; E, Mexico.
Figure 1. Maximum likelihood tree for the 386 in Evaluating hypotheses on the origin and diversification of the ringneck snake Diadophis punctatus (Colubridae: Dipsadinae)
Figure 1. Maximum likelihood tree for the 386 Diadophis punctatus samples and nine outgroup taxa. Nonparametric bootstrap proportions based on 1000 pseudoreplicates are listed above branches. Asterisk below represent nodes with maximum parsimony bootstrap values greater than 70. Symbols correspond to the geographical distribution of each lineage in Fig. 3. New mtDNA lineages are indicated with dark branches.
FIGURE 2 in A third new species of snake of the genus Omoadiphas (Reptilia, Squamata, Colubridae, Dipsadinae) from Honduras
FIGURE 2. Dorsal view of the holotype (UNAH 1740) of Omoadiphas cannula, total length 326 mm.
Divergent specialization of simple venom gene profiles among rear-fanged snake genera (Helicops and Leptodeira, Dipsadinae, Colubridae) datasets
<p>Table S1: GenBank accession numbers for mitochondrial sequences by species.</p>
FIGURE 1 in Geographical variation and taxonomy of the snail-eating snake Dipsas albifrons (Sauvage, 1884), with comments on the systematic status of Dipsas albifrons cavalheiroi Hoge, 1950 (Serpentes: Colubridae: Dipsadinae)
FIGURE 1. Geographical distribution of Dipsas albifrons, showing the three morphometric groups.
Fig. 11 in Rare Snakes-Five New Species from Eastern Panama: Reviews of Northern Atractus and Southern Geophis (Colubridae: Dipsadinae)
Fig. 11. Geophis bellus, new species. The holotype (KU 110703) shown approximately two times life size.
Fig. 4 in Morphological Extremes-Two New Snakes of the Genus Atractus from Northwestern South America (Colubridae: Dipsadinae)
Fig. 4. Atractus sanguineus Prado. The holotype, reproduced from Prado (1946), by permission of Instituto Butantan.
Figure 10 in Not so rare snakes: a revision of the Geophis sieboldi group (Colubridae: Dipsadinae) in lower Central America and Colombia
Figure 10. Polychromatism in four populations of the Geophis brachycephalus complex; U, uniform; SP, spots; B, blotched/banded; S, striped. Rows indicate (from top) Costa Rica, Lérida, Boquete and Colombia.
Figure 8 in Not so rare snakes: a revision of the Geophis sieboldi group (Colubridae: Dipsadinae) in lower Central America and Colombia
Figure 8. Sexual dimorphism in ventral and subcaudal scutellation in four population samples of the Geophis brachycephalus complex.
Figure 5 in Not so rare snakes: a revision of the Geophis sieboldi group (Colubridae: Dipsadinae) in lower Central America and Colombia
Figure 5. Ventral patterns in Geophis: A, speckled; B, spotted; C, lined; D, banded; E, variegated, typical of Geophis zeledoni; F, longitudinal ventrolateral dark stripes, typical of Geophis betaniensis.
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