Lepidosaur

Figure 1.Holotype of Enyalioides azulae sp. n. (CORBIDI 06772, adult male, SVL = 96 mm). Top: lateral view; middle: close-up of head; bottom: ventral view. Photographs by P.J. Venegas.

Figure 2.Photographs in life of the adult male holotype of Bothriechis guifarroi (UTA R-60303), with lateral and dorsal views of the head. Photographs by JHT.

Figure 7.Plica caribeana, from the Arima Valley of Trinidad.

Figure 1.Holotype of Alopoglossus viridiceps sp. n. in dorsal (top) and ventral (bottom) views. Male, SVL = 57.89 mm, QCAZ10670. Photographs by OTC.

Calumma tarzanMale Calumma tarzan from Tarzanville, Eastern MadagascarFrom Wikimedia Commons

Boa Constrictor.

The Nature Station, Land Between The Lakes National Recreation Area, Trigg County, Kentucky, US

The Nature Station, Land Between The Lakes National Recreation Area, Trigg County, Kentucky, US

The Nature Station, Land Between The Lakes National Recreation Area, Trigg County, Kentucky, US

Figure 2.Heads of various species of Euspondylus. Holotype of Euspondylus chasqui (CORBIDI 06963, a,b), holotype of Euspondylus oreades (CORBIDI 07219, c,d) and Euspondylus spinalis (CORBIDI 07234, e,f).

Figure 2.Lateral A dorsal B and ventral C views of the head of Potamites montanicola holotype (CORBIDI 08322)

Figure 2.Male (top, CORBIDI 09213) and female (bottom, CORBIDI 09214) of Enyalioides azulae sp. n. Photograph by P.J. Venegas.

Figure 3.Dorsal, lateral, and ventral aspects of the head of the holotype of Bothriechis guifarroi (UTA R-60303). Photographs by RCJ.

Figure 8.A comparison of dorsal scale morphology at mid- body near the dorsal crest. Anterior is to the left in all images. The scale bar shown in each image is one millimeter. Only large adult specimens were used for scale comparisons. A Plica plica, FMNH 128950B Plica caribeana, FMNH 49838 C Plica kathleenae, FMNH 30931 D Plica medemi FMNH 165207 E Plica rayi, FMNH 177925, and F is a Plica cf. plica from Amazonas, Venezuela, MCZ 101841.

Figure 2.Head of holotype of Alopoglossus viridiceps sp. n. (QCAZ10670) in dorsal (top), lateral (middle) and ventral (bottom) views. Photographs by OTC.

Ground Skink (Scincella lateralis), Orange County, North Carolina, United States (26 March 2006)

The Nature Station, Land Between The Lakes National Recreation Area, Trigg County, Kentucky, US

The Nature Station, Land Between The Lakes National Recreation Area, Trigg County, Kentucky, US

Figure 1.Holotype of Thecadactylus oskrobapreinorum (SMF 92120). SVL = 95.5 mm.

Figure 3.Distinguishable characters of Potamites montanicola. Femoral pores and dorsal scutellation in the holotype (CORBIDI 08322) A–B absence of femoral pores and dorsal scutellation in female (CORBIDI 08328) C–D

Figure 3.Adult male (A, B, C CORBIDI 08786), juvenile male (D CORBIDI 09213), and adult female (E, F CORBIDI 08826) of Enyalioides azulae. Photographs by P.J. Venegas.

Figure 5.Paratypes of Bothriechis guifarroi in life; A USNM 579874, green-phase juvenile B USNM 579873, brown-phase juvenile C close-up of head of USNM 579874 D close-up of head of USNM 579873 E USNM 579875, female paratype photographed in situ at Cerro El Chino, 1,420 m elevation. Photographs by JHT.

Figure 9.A comparison of head scalation for five species in the Plica plica Group found in northern South America. A Plica caribeana FMNH 49838 B Plica kathleenae FMNH 30931 C Plica medemi FMNH 165207 D Plica plica FMNH 128950 E Plica rayi FMNH 177926.

Figure 3.Species of Alopoglossus from western Ecuador. A, B Alopoglossus viridiceps sp. n., paratype QCAZ11854, juvenile male, SVL = 38.67 mm C, D Alopoglossus viridiceps sp. n., paratype QCAZ10671, juvenile female, SVL = 33.80 mm E, F Alopoglossus viridiceps sp. n., paratype QCAZ11855, juvenile, SVL = 31.59 mm G, H Alopoglossus festae, QCAZ 9161, female, SVL = 46.89 mm.