cantil 1 mi. SE Divisadero, 850', Dep't. Morazan, El Salvador Dec. 18, 1941. Shot a large adult from an agave fence near Divisadero. This was the first individual I have seen that was not near water. These lizards are called "cantil" by the natives, and are considered quite venomous. Lake Homega, 700', Dep't. San Miguel, El Salvador Feb. 11, 1942. Gealey, the geologist, brought in a Basiliscus which he shot in the stream above camp. He said that this indi- vidual ran across the water on its hind legs, leaving "trackways" behind it on the water surface. Examina- tion of the hind feet showed that each digit is war- gined with a pectinated flap which is turned down so that each digit presents a cup-like aspect from below. It is possible that the impact of the water against the bottom of the feet spreads these flaps down so as to provide a broader contact surface with the water, enabling the animal to progress for short distances across open pools. I am inclined to agree that these lizards possess this ability, from what I have seen of the specimens along the lake shore before I collected them. However, they can pro- gress only a few feet at a time in this fashion.