Here H. 1982 22 March (continued) I would call threatening - seemingly a very calm snake. Edwin walks about twice as fast as I do, and the last 1/2 was very hilly - about 8000 m round trip. (NB: forgot to mention on 20 March that I spent 2 hrs in early afternoon helping some people photographing snakes - and caught 2 juvenile Mastigodryas melanolomus crawling on leaf litter in the open in the Arboretum). (See 24 March for additions). 23 March Spent most of day radiotracking a Chironius grandisquamus at 290 m on the Central Trail. (See separate notes). Saw a Dasyproeeta eating something nearby at one point, and Manuel saw a Nasua. We've had scattered showers lately, and today seemed very humid. 24 March Spent approx 0800 - 1050 and 1330 to 1630 following a Chironius grandisquamus E. of 290 m on the Central Trail (Manuel watched it other times). Saw an adult male Basiliscus plumifrons on the Station steps at approx 1300. (Forgot to mention on 22 March that walking out to the Laeosis sight we saw tracks of Tayassu and Felis onca on the Far Loop Trail, and some large mammal jump out of a tree and crash off - probably Nasua narica.) Beth Braher brought in an adult female Norops capito which we stomach pumped - got a fair