Occasional Papers of the Musexim of Zoology 33 



This is the lowest elevation I have for Hctacrina amcricana 

 in the Motagua drainage, and the highest station for titia. 

 The former species is represented by a single male taken on 

 the Gualan River. The same day twelve titias were taken 

 along the nearby tributary of the Gualan, and the same small 

 stream yielded forty-four specimens of macropns. At the 

 small stream^ a mile and a half below town, macropns and 

 titia were again associated, again macropns being the more 

 abundant in about the ratio of eight to one. Both species 

 also occurred in limited numbers along the Rio Alanuel or 

 some of the artificial streams diverted from it. 



24. La Fria, Venezuela. A station on the railroad above 

 El Guayabo. Elevation, 460 feet. La Fria lies at the edge 

 of the hills in the valley which extends northward to Lake 

 jMaracaibo. The forest is heavy mixed growth, and north of 

 town, where we explored it for miles, it was nearly flat, with 

 occasional small and very muddy, swampy spots, but with no 

 flowing water. East of town, and crossed by a spur of the 

 railroad, is a sandy quebrada, eight to ten feet wide, with a 

 good flow of water, which, however, disappears in the sandy 

 soil a few miles north or northeast of town. The old stone 

 road south of town goes back among the hills, and about two 

 kilometers from town it crosses the beautiful little quebrada 

 La Fria, which in its lower course, near the stone road, is a 

 gently flowing stream, five to ten feet wide, of sand, gravel 

 and boulders. Growing in the stream were many plants of a 

 calla-like arum. About a kilometer and a half beyond the 

 quebrada La Fria the road crosses the slightly larger que- 

 brada Santiaquita. This quebrada, possibly a kilometer below 

 the stone road, meets with another and slightly larger stream. 

 These streams were very similar to the fine little streams 

 about Cristalina, Colombia, except that possibly there were 



