seen. The first two are supposed to represent the
parrot (_cocho_) and the last two the turkey cock (_uexolotl_). There is
little in the drawings by which they can be differentiated. In the codex,
the heads of the parrots are colored red. There is no doubt, however,
about the identification, as they occur in the same relative position on
every page of the manuscript and are two of the thirteen birds associated
with the thirteen gods, the "Lords of the House of Day" (Seler,
1900-1901, pp. 31-35). From the foregoing, it may be seen that where
there is no question about the identification, the drawing of the bird
form is rather carelessly done and no great attempt is made to indicate
the special characteristics of the different birds.

As has been shown previously, it is not always possible to identify
without question many of the forms appearing in the manuscripts. This is
especially true with birds. In Tro-Cortesianus 20c, an unidentifiable
bird, painted blue, appears on the top of the staff carried by god F.
The head-dress of this same god in Tro-Cortesianus 27c is a bird form
and in Tro-Cortesianus 55b, the _tonalamatl_ figure is a bird whose
identity cannot be made out with certainty.

MAMMALIA

OPOSSUM (_Didelphis yucatanensis_, _D. mesamericana_). Figures
representing opossums are not with certainty identifiable in the Maya
writings. We have provisionally identified as a frog the animal shown in
Pl. 29, fig. 6, although at first sight the two median round markings
might be taken to represent a marsupial pouch. Stempell considers the
animals found in the upper division of Dresden 25-28 as opossums of one
of the above species, and this seems very possible. They are shown with
long tails, slightly curved at the tips, and with long head and
prominent vibrissae. A rather similar figure is found in the Nuttall
Codex (Pl. 34, fig. 7). There is nothing, however, that seems to
preclude their being dogs and, in our opinion, they represent this
animal.

NINE-BANDED ARMADILLO (_Tatu novemcinctum_). This is the common species
of armadillo (Maya, _wet[vs]_) found throughout the warmer portion of
Mexico and Central America, where it is frequently used as an article of
food, and its shell-like covering is utilized in various ways. Several
representations of it occur in the Tro-Cortesianus (Pl. 29, figs. 1-4),
where it is characterized by its scaly covering, long ears and tail, and
the moveable bands about the body.

This a