160 Proceedings of the Biological Society of Washington. 



{Dendrobates truncatus Cope, of Bull. U. S. Nat. Mus. No 32 is Phyllo- 

 bates truvcatus Cope, Proc. Acad. Nat. Sci. Phila., 1860, p. 372. Type 

 loc, Panama. This is apparently neither our sp. nov. nor ialamancae; 

 beyond this it is hard to say). 



Snout rather prominent and truncate; longer than the diameter of the 

 orbit; loreal region very slightly concave; nostril situated at a point slightlj^ 

 less than half the distance of the tip of snout from eye ; interorbital space 

 much broader than upper eyelid; tympanum not covered by a fold, very 

 indistinct, large, fully one half the diameter of the eye; digital dilations 

 small; a distinct outer and less distinct inner metatarsal tubercle; a short 

 oblique ridge" on the inner aspect of the tarsus; tibiotarsal articulation 

 reaching tympanum, skin of sides and back vermiculate with fine anasto- 

 mosing glandular folds, (which are not conspicuous until the skin is freed 

 from liquid); skin of belly smooth or with feeble folds. 



Color, in alcohol, but fresh and well preserved: Male, dark maroon 

 above, almost velvety black, a yellow line along each side which becomes 

 white above the forelimb and which continues as a white line about the 

 upper lips. A dark band below the yellow band on the sides. Belly and 

 under sides of thighs white. Throat black and under side of thighs smoky 

 with lighter marbling and a conspicuous black anvil-shaped marking. 

 Tibia with a black crossband on hazel ground. 



Female: Dorsum rich brown; sides much darker, the lateral band white 

 and not continued entirely along the side; upper lip white; belly and lower 

 sides of thighs white; upper aspect of thighs grayish, with a dusky longi- 

 tudinal marking and some short bars at right angles to this band; tibia 

 dusky with many darker spots and narrow bars. 



Both specimens were taken in the bed of a small brook. This brook was 

 nearly dry and only little pools of water remained along its course; near or 

 in these the specimens were taken. The male had 8 or 10 tadpoles adhering 

 to his back when captured. 



Paludicola imitator, sp. nov. 



Type M. C. Z. 345, collected by the Thayer Expedition at Lake Cudajaz, 

 (situated north of the main stream of the Amazon between Manaos and 

 Teff6) Brazil. 



Vomerine teeth in two small oval groups directly between the choanae; 

 snout rounded, upper lip not prominent, slightly longer than orbital diame- 

 ter; nostril a very little nearer tip of snout than eye; interorbital space 

 markedly broader than upper eyelid; tympanum, small, oval, upright, 

 about one-third the diameter of the eye; toes moderate, nearly half webbed; 

 subarticular tubercles feebly developed; a small outer and a larger inner 

 metatarsal tubercle; the tibio-tarsal articulation reaches a short distance 

 anterior to the eye; skin smooth with very many round scattered warts each 

 about one-third the size of the tympanum ; skin of belly strongly granular. 



Color: grayish green, uniform except for a narrow dark streak on the 

 canthus and a wide dark band from eye to axilla; belly white. In habit 

 and marking recalling the common European Hyla. 



