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1,999 results for “illustrated keys”
FIGURE 43 in Illustrated Key to the Snakes of the Philippines
FIGURE 43. Lateral view of head of (A) Pseudorabdion mcnamarae (KU 327199), (B) Pseudorabdion cf. collaris (KU 315197), (C) Pseudorabdion oxycephalum (KU 324641), (D) Pseudorabdion montanum (KU 305063). Loreal scale (green; A), parietal scale (purplish-gray; C–D), fourth supralabial scale (light gray; C–D), postocular scale (blue; B), frontal scale (reddish brown; B–D), scale formed from fusion of supraocular and postocular scales (yellow; C–D).
FIGURE 42 in Illustrated Key to the Snakes of the Philippines
FIGURE 42. Lateral view of head of (A) Oxyrhabdium modestum (KU 311301), (B) Oxyrhabdium leporinum leporinum (KU 322335). Loreal scale (green), postnasal scale (blue), second supralabial scale (purplish-gray).
FIGURE 31 in Illustrated Key to the Snakes of the Philippines
FIGURE 31. Ventral view of head of (A) Calamaria palavanensis (KU 309445), (B) Calamaria gervaisii (KU 307983). Mental scale (blue), anterior chin shields (reddish brown), first infralabial scales (green).
FIGURE 28 in Illustrated Key to the Snakes of the Philippines
FIGURE 28. Lateral view of head of (A) Boiga angulata (KU 343853), (B) Coelognathus erythrurus manillensis (KU 335195). Note vertically elliptical (A) versus rounded pupil (B).
FIGURE 30 in Illustrated Key to the Snakes of the Philippines
FIGURE 30. Ventral-lateral view of head of (A) Boiga cynodon (KU 328496), (B) Boiga philippina (KU 304855). Eighth infralabial scale (purplish-gray).
FIGURE 25 in Illustrated Key to the Snakes of the Philippines
FIGURE 25. Lateral view of head of (A) Ahaetulla prasina preocularis (KU 347854), (B) Dryophiops rubescens (KU 328516). Note horizontally elongate pupil in Ahaetulla versus rounded pupil in Dryophiops.
FIGURE 34 in Illustrated Key to the Snakes of the Philippines
FIGURE 34. Dorsal view of head of (A) Hologerrhum dermali (CMNH 5075), (B) Hologerrhum philippinum (KU 330056). Parietal scales (reddish brown); black arrows point to posterior margin of parietal scale, showing unnotched parietal pattern (A), or notched parietal pattern (B).
FIGURE 23 in Illustrated Key to the Snakes of the Philippines
FIGURE 23. Lateral view of head of (A) Ramphotyphlops marxi (FMNH 96520; a redrafting by EH of original image in Wallach 1993), (B) Malayotyphlops luzonensis (CM 2653; a redrafting by EH of original image in Wynn et al. 2016). Rostral scale (blue); arrow indicates either (A) beaked shape of rostral scale, or (B) rounded shape of rostral scale. Fig. A reproduced and modified with permission of V. Wallach and Journal of Herpetology. Fig. B reproduced and modified with permission of A. Wynn and Journal of Herpetology.
FIGURE 38 in Illustrated Key to the Snakes of the Philippines
FIGURE 38. Dorsal view of head of the (A) Laticauda laticaudata (KU 94559), and (B) Laticauda colubrina (KU 303031). Prefrontal scales (blue).
FIGURE 21 in Illustrated Key to the Snakes of the Philippines
FIGURE 21. Lateral view of head of (A) Indotyphlops braminus (specimen number unknown; redrawn from Taylor 1922a), (B) Ramphotyphlops cumingii (EHT R-99; a redrafting by EH of original image in Taylor 1919). Second supralabial scale (purplish-gray); preocular scale (green); nspo = nasal suture posterior origin scale.
FIGURE 29 in Illustrated Key to the Snakes of the Philippines
FIGURE 29. Lateral view of head of (A) Ptyas luzonensis (KU 306605), (B) Stegonotus muelleri (KU 344097). Supraocular scale (reddish brown) of Ptyas robust, protruding over eye.
FIGURE 19 in Illustrated Key to the Snakes of the Philippines
FIGURE 19. Ventral view of head of (A) Hologerrhum philippinum (KU 330065): five infralabial scales in contact with chin shields; anterior chin shields broadly contact infralabial scales 1–4; posterior chin shields broadly in contact with fourth and fifth infralabial scales; (B) Cyclocorus lineatus lineatus (KU 346571): five infralabial scales in contact with chin shields; anterior chin shields broadly in contact with infralabial scales 1–4; posterior chin shields broadly in contact with fifth infralabial scale; (C) Cyclocorus nuchalis nuchalis (KU 327765): four infralabial scales in contact with chin shields, anterior chin shields broadly in contact with infralabial scales 1–3; posterior chin shields broadly in contact with fourth infralabial scale.
FIGURE 17 in Illustrated Key to the Snakes of the Philippines
FIGURE 17. Lateral view of head of (A) Naja samarensis (KU 326653), (B) Ophiophagus hannah (KU 321813), (C) Hemibungarus mcclungi (KU 313898), (D) Calliophis philippina (KU 327218). Postocular scales (green), anterior temporal scales (purplish-gray), postnasal scales (blue), prefrontal scales (reddish brown).
FIGURE 45 in Illustrated Key to the Snakes of the Philippines
FIGURE 45. Lateral view of head of (A) Rhabdophis lineatus (KU 326696), (B) Rhabdophis chrysargos (composite drawing from photographs of multiple individuals). Anterior temporal scales (green), sixth supralabial scale (purplish-gray), preocular scales (blue).
FIGURE 47 in Illustrated Key to the Snakes of the Philippines
FIGURE 47. Lateral view of anterior part of head of a recently discovered (Weinell and Brown 2018) unnamed lineage (KU 337269).
1a in Illustrated Key to the Snakes of the Philippines
1a. Nasal scales separated by internasal scales; width of ventral body scales> 1/3 body width... .............................................................. Laticauda (p. 27) 1b. Internasal scales absent, nasal scales in contact with each other medially; width of ventral body scales variable............................................................... 2 2a. Width of ventral body scales> 1/3 body width........................ Aipysurus (p. 20) 2b. Width of ventral body scales <1/4 body width and often narrower than adjacent lateral body scales...................................................................... 3 3a. Three supralabial scales, second very elongate (Fig. 16)............ Emydocephalus (p. 24) 3b. More than three supralabial scales................................. Hydrophis (p. 24) FIGURE 16. Lateral view of head of Emydocephalus annulatus (specimen number unknown; a redrafting by EH of original image in Rasmussen et al. 2011). Second supralabial scale (reddish brown). Fig. 16, modified original line drawing reproduced with permission of A. Rasmussen and Zootaxa and Magnolia Press.
FIGURE 15 in Illustrated Key to the Snakes of the Philippines
FIGURE 15. Lateral body scales of (A) Dendrelaphis marenae (KU 314131): oblique rows, (B) Oligodon maculatus (KU 321699): horizontal rows.
FIGURE 9 in Illustrated Key to the Snakes of the Philippines
FIGURE 9. Dorsal view of head of (A) Cerberus schneideri (KU 305489), (B) Opisthotropis typica (KU 327424), (C) Calamaria gervaisii (KU 322329), (D) Liopeltis philippinus (KU 327731). Frontal scale (reddish brown), prefrontal scales (blue), internasal scales (purplish-gray), nasal scales (green).
FIGURE 27 in Illustrated Key to the Snakes of the Philippines
FIGURE 27. Lateral view of head of (A) Calamaria gervaisii (KU 322329), (B) Pseudorabdion collaris (KU 315197). Prefrontal scales (green), internasal scales (purplish-gray).
FIGURE 24 in Illustrated Key to the Snakes of the Philippines
FIGURE 24. Ventral-lateral view of head of (A) Tropidolaemus subannulatus (KU 327425), (B) Trimeresurus flavomaculatus (KU 330050). Second supralabial scale (purplish-gray), scale anterior to heat sensing pit (green).
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