The serpent in Dresden 26c-28c ([Pl. 10], fig. 1) coiled around the altar which rises from a Tun sign is not easily explained. In 25c, the altar is replaced by god B and in the former cases, the reptiles may stand for this god with whom they are often associated.[316-*] The serpent seems closely connected with the idea of offerings as the body of a snake is shown in several instances as the support of the jar containing the various gifts in Tro-Cortesianus 34a, 34b, 35a, 35b, 36a, 36b, and possibly 52c ([Pl. 9], fig. 3).

Finally the serpent is to be noted in a number of miscellaneous connections:—in Dresden 36b ([Pl. 19], fig. 11), as being attacked by a black vulture,[317-*] in Tro-Cortesianus 40b ([Pl. 9], fig. 4) a rattlesnake is biting the foot of one of the hunters, and in Tro-Cortesianus 66b, where the serpent has a human head and arm coming from its open jaws. This is a very frequent method of representing the serpent in the Maya stone carvings. In Tro-Cortesianus 60c, 100d ([Pl. 9], fig. 8), twice, 106a, and 111b, the rattlesnake is shown as a sprinkler for the holy water in the hand (in the first, second and fourth examples) of god D. Landa (1864, p. 150)[317-†] describes in the ceremony of the baptism of children, that the leader of the rite wore on his head a kind of mitre embroidered with plumage in some manner and in his hand a small holy-water sprinkler of wood, carved skillfully, of which the filaments were the tails of serpents, similar to serpents with rattles.

In spite of the importance of the serpent in the manuscripts and stone carvings, it never seems to appear as a separate deity. With one exception, no glyph is to be found representing this reptile as is the case with many of the animals. Tro-Cortesianus 106c ([Pl. 9], fig. 7) is this exception showing the rattles of a snake which are found in the line of glyphs above two of the bees. No serpent appears in the picture.

The Nahuatl day, Couatl, has the signification serpent, as suggested before, in discussing the meaning of the name Quetzalcoatl or Quetzalcouatl. This day sign occurs throughout the Mexican manuscripts as the head of a serpent ([Pl. 8], figs. 4, 6; [Pl. 9], fig. 2; [Pl. 10], figs. 2, 4-6).

Iguana. Of the lizards represented, the iguana (Maya hu) is the most striking, and is readily identified on account of the prominent spines along the back. As noted by Stempell, there are two or three species of large lizards in Central America commonly called iguana, and it is probable that the one here considered is the Ctenosaura acanthura of Yucatan or Iguana tuberculata of South and Central America.

In the manuscripts the iguana is almost exclusively represented as an offering ([Pl. 12], figs. 1-6). It is usually found on top of the Kan sign, meaning maize or bread,[318-*] and this, in turn, resting in a bowl ([Pl. 12], figs. 3, 4, 6). Landa (1864, p. 230)[318-†] gives a pleasing confirmation of this offering of an iguana with bread. It is possible that the object shown in Tro-Cortesianus 12b ([Pl. 12], fig. 13) may be the conventionalized representation of this lizard. It must be admitted that this interpretation is very doubtful. The triangular points suggest the lizard, but the pointed character of the sign as a whole in no way resembles the back of this reptile. It is found associated with three Kan signs. In Cakchiquel, a dialect of the Maya stock, K’an, according to Guzman and Brinton (1893, p. 24) is the name applied to the female of the iguana or the lizard, and this is believed to be the original sense of the Maya term. It may also be noted that the Nahua day sign Cuetzpalin, meaning lizard, is the one which corresponds with the Maya day Kan. [Pl. 12], figs. 10, 12, 14, show representations of the day corresponding to Cuetzpalin in the Aubin and Nuttall codices. These show a stout spineless species with a short thick tail and may be the Gila monster (Heloderma horridum), a large and somewhat poisonous species having much these proportions.

Further offerings are shown in [Pl. 12], figs. 7, 8. These seem to be the heads and forefeet of lizards, but, from the shape of the head, perhaps not of iguanas.

In Stela D of Copan, the Uinal period glyph seems to be represented by a spineless lizard covered with scales ([Pl. 12], fig. 9). Frog-like characteristics also appear. This stone monument is remarkable from the fact that the glyphs are all more or less realistic representations of human and animal forms. It should be noted that there certainly seems to be some connection between the Uinal period glyph and the lizard. [Pl. 13], fig. 9, represents a Uinal glyph from the Temple of the Foliated Cross at Palenque and the lizard form is clearly seen in the eyebrow and the upper jaw. Compare also [Pl. 13], fig. 11, and [Pl. 28], fig. 3. A collection of glyphs of this period shows clearly the lizard-like character of the face.

That some connection existed between the lizard and the idea of rain seems clear from a reference in the Relacion de la Ciudad de Merida (1900, p. 51).[319-*] Finally the lizard is shown in Dresden 3a ([Pl. 12], fig. 11) directly in front of god H beside the scene of human sacrifice.

Crocodile. The text figure ([1]) shows a dorsal view of a crocodile (Maya, ayin) carved on the top of Altar T at Copan. The general form is considerably conventionalized with limbs elongated and provided with human hands and long toes. The protuberances of the back are roughly shown by oval markings, which are here continued on the legs. The large scales of the ventral surfaces also appear at the sides of the body, and along the posterior edges of the limbs. The tail is shortened and bifurcate. The most interesting portion, however, is the head. The snout is distinctly pinched in at the base, though broadened again distally. In the alligator the snout is broad and tapers but little. As in other representations of the crocodile, the lower jaw does not appear, and even in this dorsal view the artist seems to have deemed it necessary to show the row of teeth as if in side view, or as though they projected laterally from the mouth. What may represent ears or ear plugs are shown one on each side behind the eyes. There are few other examples of full drawings of the crocodile in the Maya writings. Dresden 74 shows an animal which has been considered to represent a crocodile or alligator but it seems to have more of the characteristics of a lizard.