Myrmek heng 1969 Journal 71 3 mi NW Morupe, 100 ft., Depto. Lambayeque, Peru dashing all over. Aug.14 (cont.) I noticed one prevalent behavioral characteristic that I have never seen before in lizards. A lizard would dash a few yards and stop, then raise one forearm and give it quick shakes for about a second, then raise the other one and likewise shake it. Sometimes only one arm (the majority of which was the right) would be shaken. Perhaps this is some sort of territorial signal or warning signal. There were flocks of very small birds that perped noisily as they foraged from hummock to hummock. I also saw many hummingbirds. We drove to the mouth of the Rio Saina via a small dirt road, and there caught several lizards of different species. The beach there apparently has no sand above, just pebbles. There were a couple of lagoons in which thousands of little fish swam. I found that often lizards would hide under dead pelicans, probably for warmth. Tonight we are camping near the turnoff to the highway on this dirt road along the Rio Saina. I have set out 28 small Sherman around the hummocks. We're trying to get both a southern extension of the range of Paralimys gerbillus as well as both this species coexisting with Mus, since it seems Mus is pushing out gerbillus further north. So far, it seems that it is