lo University of Michigan 



and haematiticiis along the w(X)dland streams ; the former 

 diurnal and the latter nocturnal ; marinus hopped about all 

 the clearings, and a rare and rather atypical sternosignatiis 

 was found sparingly in the woods. Bupemphix pustulosus 

 was likewise a diurnal denizen of the shady forest and many 

 were found. Bleutherodactylus palmatus we took but once, 

 and that by day. These two species were caught among the 

 scattered stones and pebbles of the shores and beaches of the 

 river near our camp. Bleutherodactylus ranoides we found 

 several times, but with the night lamp only. Leptodactydac- 

 tylus melanonotus was diurnal and common ; the others taken 

 were found only at night. Night hunting with the light, we 

 often caught the great L. pentadactylus, and as our containers 

 did not permit of our carrying off large series we had ample 

 opportunity to test the remarks of good Father Labat, who 

 remarked in 1724, when he first tasted them in Guadeloupe, 

 that they were "les plus belles Grenonilles du Monde." By 

 day they keep hidden in their caves and are never seen. They 

 emerge at night and sit in the shallows awaiting their prey — 

 usually shrimps. Leptodactyhis boliviamis, which I once 

 redescribed as L. insulanim, was likewise often caught, and 

 only after dark, unless we chanced to dig it from its deep and 

 almost perpendicular burrow. Rana palmipes for some reason 

 seemed to be distinctly rare and we only found it once. 



Four species of tree toads were taken during the trip, and 

 four only. All these were found with the aid of a hunting 

 lamp at night. Hyla maxima Laur. is apparently new to the 

 fauna of Panama and was found at the Rio Esnape. The 

 second species is represented by a young individual too small 

 for satisfactory identification. The third I consider worthy 

 of subspecific recognition. 



