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FIGURE 3 in A study on Ptyas doriae (Boulenger, 1888) with comments on the status of Ptyas hamptoni (Boulenger, 1900) (Squamata: Colubridae: Colubrinae)

FIGURE 3. Specimen of Ptyas doriae (Regd. No. 40107) collected from Manipur (India) showing a striped colour pattern.

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FIGURE 2 in A study on Ptyas doriae (Boulenger, 1888) with comments on the status of Ptyas hamptoni (Boulenger, 1900) (Squamata: Colubridae: Colubrinae)

FIGURE 2. Lateral view of head of specimens of Ptyas doriae showing the variable scalation on the loreal region. Note the presence of loreal in A. (VR/ERS/ZSI 501[A]) and B. (VR/ERS/ZSI 501 [J]) and absence of that scale in C. (ZSI 20504) and D. (ZSI 20503).

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FIGURE 1 in A study on Ptyas doriae (Boulenger, 1888) with comments on the status of Ptyas hamptoni (Boulenger, 1900) (Squamata: Colubridae: Colubrinae)

FIGURE 1. Holotype of Ablabes hamptoni (NHML 1946.1.5.32; synonymized with Ptyas doriae), A. dorsal view of head, B. lateral view of head, C. ventral view of head, D. dorsal view of entire body.

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FIGURE 1 in A new species of Colubrina (Rhamnaceae) of the Amazon region of Ecuador

FIGURE 1. Colubrina amazonica: A. photograph of fresh (bar = 1 cm), B. pressed specimen (bar = 1 cm) and C. detail of glands on the abaxial leaf (bar = 2 mm). A and B material from Palacios 16111 et al. (F), isotype; C from Cerón et al 8750 (QCNE).

FIGURE 9 in Taxonomic status of the enigmatic Natrix sexcarinata Wagler, 1824 (Serpentes: Colubridae: Colubrinae)

FIGURE 9. Aulcate (A) and asulcate (B) sides of the hemipenis of the Phrynonax sexcarinatus (MNRJ 18023) specimen from the Carajás National Forest, Parauapebas municipality, in the state of Pará, Brazil. Scale = 1 cm.

FIGURE 7 in Taxonomic status of the enigmatic Natrix sexcarinata Wagler, 1824 (Serpentes: Colubridae: Colubrinae)

FIGURE 7. Cumulative frequency for the number of anterior keeled dorsal scale rows (top; only for females), number of right supralabials contacting the orbit (center), and number of posterior keeled dorsal scale rows (bottom; only for females) for Phrynonax polylepis subpopulations.

FIGURE 5 in Taxonomic status of the enigmatic Natrix sexcarinata Wagler, 1824 (Serpentes: Colubridae: Colubrinae)

FIGURE 5. Association between snout-vent length and color pattern changes in females (left) and males (right) (A) and differences in the number of right infralabials (left), left infralabials (center) and snout-vent lengths (right) (B) in Phrynonax polylepis from the Amazon.

FIGURE 4 in Taxonomic status of the enigmatic Natrix sexcarinata Wagler, 1824 (Serpentes: Colubridae: Colubrinae)

FIGURE 4. Phrynonax polylepis distribution based on examined samples. Different colors represent subpopulations labeled as distinct Operational Taxonomic Unities, following possible natural dispersion barriers across the main interfluves along the Amazon Basin (see Material and Methods for additional explanations).

FIGURE 1 in Taxonomic status of the enigmatic Natrix sexcarinata Wagler, 1824 (Serpentes: Colubridae: Colubrinae)

FIGURE 1. Illustration employed in the description of Natrix sexcarinata Wagler, 1824 based on a specimen from the banks of the Amazon River in Brazil, modified from the original.

FIGURE 2 in Taxonomic status of the enigmatic Natrix sexcarinata Wagler, 1824 (Serpentes: Colubridae: Colubrinae)

FIGURE 2. Illustration employed in the description of Natrix cinnamomea Wagler, 1824 based on a specimen from the Amazon Forest without detailed location, modified from the original.

FIGURE 8 in Taxonomic status of the enigmatic Natrix sexcarinata Wagler, 1824 (Serpentes: Colubridae: Colubrinae)

FIGURE 8. Dorsal (A), ventral (B) and lateral (C) views of the head and dorsal (D) and ventral (E) views of the body of the Phrynonax sexcarinatus (MNRJ 20302) neotype from Porto Trombetas, Oriximiná municipality, in the state of Pará, Brazil. Specimens measured 1128 mm snout-vent length and 446 mm tail length.

FIGURE 3 in Taxonomic status of the enigmatic Natrix sexcarinata Wagler, 1824 (Serpentes: Colubridae: Colubrinae)

FIGURE 3. General view of Phrynonax polylepis in life from Parauapebas, in the state of Pará (A); Sinop, in the state of Mato Grosso (B); from Bujari, in the state of Acre (C); and Belterra, in the state of Pará (D), all in Brazil. Color Pattern A is depicted in Figures A–B, while Color Pattern B is depicted in figures C–D. Modified images from original photographs by Fábio Giordano (A), Antonino Gonçalves Medina (B), Martin Acosta (C), and Miguel A. Casado (D). All photos are available at .

FIG. 8 in A Review of the Tantilla taeniata Species Group (Reptilia: Squamata: Colubridae: Colubrinae) in Honduras, with the Description of Three New Species

FIG. 8.—Tantilla gottei holotype (ROM 19996), an adult female. Total length of head, body, and tail ¼ 367 mm. Image taken by JRM (UTADC 8867). A color version of this figure is available online.

FIG. 7 in A Review of the Tantilla taeniata Species Group (Reptilia: Squamata: Colubridae: Colubrinae) in Honduras, with the Description of Three New Species

FIG. 7.—Lateral view of the head and body of the Tantilla excelsa holotype (USNM 579682). Head length ¼ 9.8 mm. Image taken by JRM (UTADC 8866). A color version of this figure is available online.

FIG. 6 in A Review of the Tantilla taeniata Species Group (Reptilia: Squamata: Colubridae: Colubrinae) in Honduras, with the Description of Three New Species

FIG. 6.—Tantilla excelsa holotype (USNM 579682), an adult male. Total length of head, body, and tail ¼ 400 mm. Image taken by JRM (UTADC 8865). A color version of this figure is available online.

FIG. 3 in A Review of the Tantilla taeniata Species Group (Reptilia: Squamata: Colubridae: Colubrinae) in Honduras, with the Description of Three New Species

FIG. 3.—Tantilla stenigrammi holotype (UTA R-52591) in life, a subadult female. Total length of head, body, and tail ¼ 173 mm plus tail tip. Image taken by ENS (UTADC 8755). A color version of this figure is available online.

FIG. 4 in A Review of the Tantilla taeniata Species Group (Reptilia: Squamata: Colubridae: Colubrinae) in Honduras, with the Description of Three New Species

FIG. 4.—Lateral view of the head and body of the Tantilla stenigrammi holotype (UTA R-52591). Head length ¼ 4.6 mm. Image taken by JRM (UTADC 8864). A color version of this figure is available online.

FIG. 1 in A Review of the Tantilla taeniata Species Group (Reptilia: Squamata: Colubridae: Colubrinae) in Honduras, with the Description of Three New Species

FIG. 1.—Topotype of Tantilla taeniata (UTA R-45867), an adult female from Colonia Nimajuyu I, zona 21, Guatemala City. Total length of head, body, and tail ¼ 320 mm. Image taken by ENS (UTADC 8862). A color version of this figure is available online.

FIG. 2 in A Review of the Tantilla taeniata Species Group (Reptilia: Squamata: Colubridae: Colubrinae) in Honduras, with the Description of Three New Species

FIG. 2.—Lateral view of the head and body of Tantilla taeniata topotype (UTA R-45867). Head length ¼ 7.8 mm. Image taken by ENS (UTADC 8863). A color version of this figure is available online.

FIG. 9 in A Review of the Tantilla taeniata Species Group (Reptilia: Squamata: Colubridae: Colubrinae) in Honduras, with the Description of Three New Species

FIG. 9.—Lateral view of the head and body of the Tantilla gottei holotype (ROM 19996). Head length ¼ 10.8 mm. Image taken by JRM (UTADC 8868). A color version of this figure is available online.