INTRODUCTION 
In 1961 I published a short paper on the aggressive display 
of the tree lizard, Urosaurus ornatus, as a time—-motion event 
(Carpenter and Grubitz, 1961), indicating that the display of 
this action sequence was a species-specific behavioral character. 
Many earlier publications relate that certain iguanid lizard 
species performed movements while displaying, but made little 
attempt to describe their characteristics. During the 1960s a 
series of studies on iguanids, and later agamid lizards, was 
initiated at the University of Oklahoma and the University of 
Oklahoma Biological Station as my on going research program and 
involved many undergraduate and graduate students who produced 
numerous reports, masters theses and doctoral dissertations. 
These studies produced graphical representations of the display 
movements (display-action-patterns) called DAPgraphs (display- 
action-pattern graphs). By the late 1960s and early 1970s we 
had established the species-typical nature of the aggressive 
displays of iguanid and agamid lizards and many other 
herpetologists (and animal behaviorists) were following this lead 
and recording the display-action-patterns of these lizards from 
many parts of the world. One of our objectives at the beginning 
of these studies was to establish criteria for recording and 
measuring the parameters of the display-action-pattern and a 
terminology that could be used for making comparisons. From a 
crude beginning using a stop watch we have advanced to today's 
methods of precise motion picture and videotape analysis with 
computers handling the data. 
The implications of using the display-action-patterns of 
these lizards in systematic, ecologcial, behavioral, 
physiological, neurological, genetic, etc., studies are indicated 
in many of the publications listed here. 
This is an inventory of species for which a display-action- 
pattern graph (DAPgraph) or a similar graphical representation or 
description has been noted in the literature. Some of these 
references are marginal, but can lead the investigator to what 
little is known about the display-action-pattern of a species. 
Since DAPgraphs have also been published for chameleons, this 
family is included. 
It is quite evident that we have only begun to record these 
display-action-patterns which I feel certain are present in the 
great majority (if not all) of the species of lizards in the 
Iguanidae, Agamidae, and Chameleontidae. If I have missed any 
references, I apologize,, but. nothing of this sort. can ever be 
complete, or completely up to date. If this inventory stimulates 
others to add to the list and helps the investigator to find 
literature sources, my efforts have been worth while. 
