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FIGURE 3 in Systematics of the Dendrophidion nuchale complex (Serpentes: Colubridae) with the description of a new species from Central America

FIGURE 3. Distribution of Dendrophidion nuchale in northern Venezuela. The map includes localities documented in Roze (1966) and Natera-Mumaw (2008) in addition to specimens we examined. Some symbols represent multiple contiguous localities.

FIGURE 2 in Systematics of the Dendrophidion nuchale complex (Serpentes: Colubridae) with the description of a new species from Central America

FIGURE 2. Details of head and body patterns of Dendrophidion nuchale. A–B, UMMZ 122355. C, UMMZ 124067, lateral view of posterior body.

FIGURE 6 in Systematics of the Dendrophidion nuchale complex (Serpentes: Colubridae) with the description of a new species from Central America

FIGURE 6. Dendrophidion clarkii, retracted hemipenis of the holotype (MCZ 34878). Labeled landmarks are discussed in the introduction to hemipenial morphology later in this paper. eas, enlarged asulcate spines. ess, enlarged sulcate spines. sa, spinose annulus. ss, sulcus spermaticus.

FIGURE 7 in Systematics of the Dendrophidion nuchale complex (Serpentes: Colubridae) with the description of a new species from Central America

FIGURE 7. Dendrophidion clarkii in life. A, Juvenile specimen from western Panama (AMNH 129758, 225 mm SVL). B, Adult from western Colombia (AMNH 109718, 894 mm SVL; compare Fig. 8C). From color slides taken by Charles W. Myers. A nuchal collar is present in both specimens but with less dense black pigment in the juvenile.

FIGURE 5 in Systematics of the Dendrophidion nuchale complex (Serpentes: Colubridae) with the description of a new species from Central America

FIGURE 5. Dendrophidion clarkii. Holotype (MCZ 34878). A, head (right side). B, Posteriolateral pattern. C, Base of the tail in lateral view. Arrows in B and C indicate the position of the vent.

FIGURE 9 in The dog-faced water snakes, a revision of the genus Cerberus Cuvier, (Squamata, Serpentes, Homalopsidae), with the description of a new species

FIGURE 9. The lectotype of Cerberus schneiderii (RMNH 1173) with the locality data – Timor. A and B compares the head scales of the lectotype to those in Schlegel's drawing. The arrangement of the fragments of the frontal plate made it possible to identify this snake. C. Shows the lectotype in profile.

FIGURE 5. The Palau Bockadam, Cerberus dunsoni AMNH116020 in The dog-faced water snakes, a revision of the genus Cerberus Cuvier, (Squamata, Serpentes, Homalopsidae), with the description of a new species

FIGURE 5. The Palau Bockadam, Cerberus dunsoni AMNH116020. Note the rounded scales and the parietal scale fragments (arrows).

FIGURE 8 in The dog-faced water snakes, a revision of the genus Cerberus Cuvier, (Squamata, Serpentes, Homalopsidae), with the description of a new species

FIGURE 8. Schneider's Bockadam, Cerberus schneiderii. Top: near Trang, Thailand; Bottom is from Pak Phanang, Thailand. Photos JCM.

FIGURE 4 in The dog-faced water snakes, a revision of the genus Cerberus Cuvier, (Squamata, Serpentes, Homalopsidae), with the description of a new species

FIGURE 4. The Australian Bockadam, Cerberus australis. Two color morphs from the Northern Territory, vicinity of Darwin. JCM.

FIGURE 2. Plate 17 in The dog-faced water snakes, a revision of the genus Cerberus Cuvier, (Squamata, Serpentes, Homalopsidae), with the description of a new species

FIGURE 2. Plate 17 from Russell (1796) illustrating the bockadam. This illustration is the type specimen for Cerberus rynchops and several of its synonyms.

FIGURE 10. A in The dog-faced water snakes, a revision of the genus Cerberus Cuvier, (Squamata, Serpentes, Homalopsidae), with the description of a new species

FIGURE 10. A summary of the phylogenetic relationships within the genus Cerberus modified from Alfaro et al. (2004, 2008) showing the localities sampled and taxa currently recognized less C. dunsoni. Genetic divergence between the Asian and Australian clades was 0.06–0.12. While the divergence among the clades west of Australia was less: Thai-Malay peninsula and Gulf of Thailand 0.02–0.05; the Sunda Islands and Sulawesi 0.02–0.05; the Philippines 0.02–0.06; India and Myanmar were 0.04–0.06; and the Philippines were 0.02–0.5).

opencc-zeroJan 2023View details →

Supplementary material 1 from: Arteaga A, Batista A (2023) A consolidated phylogeny of snail-eating snakes (Serpentes, Dipsadini), with the description of five new species from Colombia, Ecuador, and Panama. ZooKeys 1143: 1-49. https://doi.org/10.3897/zookeys.1143.93601

Morphological and locality data for specimens of Dipsadini species examined, either directly, indirectly through digital photographs, or both. Codes: SVL = snout-vent length (mm); TL = tail length (mm); M = Male, F = Female.

FIG. 5 in A New Species of Helicops (Serpentes: Dipsadidae: Hydropsini) from Southeastern Brazil

FIG. 5.—Locality records of Helicops nentur sp. nov. in the state of Minas Gerais, Brazil (insert). A color version of this figure is available online.

FIG. 2 in A New Species of Helicops (Serpentes: Dipsadidae: Hydropsini) from Southeastern Brazil

FIG. 2.—Holotype of Helicops nentur sp. nov. (UFMG 2486): head in dorsal (A), ventral (B), left (C), and right (D) view. Scale bar = 5 mm. A color version of this figure is available online.

FIG. 1 in A New Species of Helicops (Serpentes: Dipsadidae: Hydropsini) from Southeastern Brazil

FIG. 1.—Holotype of Helicops nentur sp. nov. (UFMG 2486): dorsal (A) and ventral (B) view. Scale bar = 20 mm. A color version of this figure is available online.

FIG. 3 in A New Species of Helicops (Serpentes: Dipsadidae: Hydropsini) from Southeastern Brazil

FIG. 3.—Right hemipenis of a paratype of Helicops nentur sp. nov. (MZUFV 960) fully everted and almost maximally expanded: sulcate (A) and asulcate (B) side. Scale bar = 10 mm. A color version of this figure is available online.

FIG. 4 in A New Species of Helicops (Serpentes: Dipsadidae: Hydropsini) from Southeastern Brazil

FIG. 4.—Paratype (ZUFMS-REP 2291) of Helicops nentur sp. nov. immediately postmortem in (A) dorsal view and (B) ventral view. A color version of this figure is available online.

FIG. 6 in A New Species of Helicops (Serpentes: Dipsadidae: Hydropsini) from Southeastern Brazil

FIG. 6.—Phylogenetic relationships of sampled species of Helicops based on (A) 16s rRNA and (B) C-mos sequence data. Numbers at nodes indicate the bootstrap values/posterior probabilities; the bars below each cladogram indicate base substitution rate for each gene (# of substitutions per site). Hŋdrops triangularis and Pseudoerŋx plicatilis were used as outgroups.

opennotspecifiedJul 2023View details →

FIGURE 2 in On the taxonomy of Uropeltis petersi (Beddome, 1878) (Serpentes: Uropeltidae) and description of a new, closely related species from the Western Ghats of India

FIGURE 2. Paralectotype of Uropeltis petersi, BMNH 1946.1.17.9. Upper row head in (left to right) dorsal, left lateral, right lateral and ventral views. Lower row tail in dorsal, left lateral, right lateral and ventral views. Scale bar increments in millimetres.