1. Possibly a flying-fish (_Exocetus_), Nuttall 75. 2. Palenque, Temple of the Cross (Maudslay, IV, Pl. 68). 3. Nuttall 36. 4, 5. Glyphs, possibly of a shark, Dresden 40a. 6. Fish as offering, Dresden 27c. 7. Fish without dorsal fins, possibly an eel (_Muraena_), Dresden 65b. 8. Fish as offering, Dresden 23b. 9. Pottery animal from Santa Rita (Gann, 1897-1898, Pl. 34). 10. Dresden 44c. 11. Nuttall 16. 12. Palenque, Palace (Maudslay, IV, Pl. 11). 13. Fish as offering, Dresden 33a. 14. Fish as part of the Great Cycle glyph, Copan, Stela C, north (Maudslay, I, Pl. 41). 15. Same, Copan, Stela C, south (Maudslay, I, Pl. 41.) 16. Same, Copan, Stela D (Maudslay, I, Pl. 48). 17. Same, Copan, Stela C, south (Maudslay, I, Pl. 41). [Illustration: PLATE 6] PLATE 7 AMPHIBIA 1. Frog (_Rana_), Tro-Cortesianus 31a. 2, 3. Same, Tro-Cortesianus 101d. 4. Probably a toad (_Bufo_), Copan, Oblong altar (Maudslay, I, Pl. 114). 5. Frog or toad, Tro-Cortesianus 17b. 6. Frog and fish, Copan, Altar O (Maudslay, I, Pl. 85). 7. Chichen Itza, Temple of the Tigers, Lower Chamber (Maudslay, III, Pl. 46). [Illustration: PLATE 7] PLATE 8 AMPHIBIA, REPTILIA 1. God F representing a tree-toad (_Hyla eximia_), Tro-Cortesianus 26b. 2. Glyph evidently belonging to fig. 3, Tro-Cortesianus 26a. 3. Same as fig. 1, Tro-Cortesianus 26a. 4. Snake, Nuttall 6. 5. Same, Nuttall 45. 6. Same, Nuttall 37. 7. Snake used as head-dress of a woman, Dresden 39b. 8. Same, Dresden 23b. 9. Same, Dresden 43b. 10. Same, Dresden 22b. 11. Same, Dresden 9c. 12. Same, Dresden 15b. 13. Same, Dresden 18a. 14. Dresden 42a. 15. Same as figs. 7-13, Dresden 20a. [Illustration: PLATE [8][TN-19]] PLATE 9 REPTILIA RATTLESNAKE (_Crotalus_) 1. Tro-Cortesianus 33b. 2. Nahua day sign, _Couatl_, Aubin 10. 3. Tro-Cortesianus 52c. 4. Tro-Cortesianus 40b. 5. Chichen Itza, Temple of the Tigers, Painted Chamber (Maudslay, III, Pl. 40). 6. Nuttall 29. 7. Glyph representing rattles, Tro-Cortesianus 106c. 8. Tro-Cortesianus 100d. 9. Chichen Itza, Temple of the Tigers, Painted Chamber (Maudslay, III, Pl. 40). 10. Nuttall 54. [Illustration: PLATE 9] PLATE 10 REPTILIA SERPENTS 1. Tree snake (possibly _Lachesis_), Dresden 27c. 2. Nuttall 37. 3. Dresden 57b. 4. Nuttall 5. 5. Nuttall 37. 6. Nuttall. 7. Serpent in connection with long number series, Dresden 62. 8. Dresden 37b. 9. Dresden 40c. [Illustration: PLATE 10.] PLATE 11 REPTILIA SERPENTS 1. Large snake with conventionalized spots, Tro-Cortesianus 30a. 2. Tro-Cortesianus 31b. [Illustration: PLATE 11] PLATE 12 REPTILIA IGUANA, LIZARDS