27(3 BuFo^'iD.^;, 



Head small ; suout prominent ; interorbital space not quite so 

 broad as the upper eyelid ; tympanum hidden. Fingers slender, 

 first not extending beyond second ; toes moderate, quite free ; tips 

 of fingers and toes slightly swollen ; subarticular tubercles very 

 prominent ; two small metatarsal tubercles ; a conical tubercle on 

 the middle of the inner edge of the tarsus. The hind limb being 

 carried forvv'ards along the body, the tibio-tarsal articulation reaches 

 in the middle between the shoiilder and the eye. Upper surfaces 

 covered with very prominent warts ; parotoids none ; lower surfaces 

 smooth, except under the thighs. Greyish olive above, with darker 

 markings ; limbs cross-barred ; belly spotted with blackish ; throat 

 and breast greyish, with a light median line. (Male with a large 

 siibgulai" vocal sac.) 



C. America ; Colombia. 



«. 2 . Tehuautepec. Brussels Museum [E.]. 



2. Engystomops steiitor. 



Bufo steiitor, Espada, An. Soc. Esp. i. p. 84. 



i-* Bufo (3Jicropliryne) pu^tulosus, Peters, Mon. Berl.Ac, 1S73, p. GIG. 



Peralaimos steutor, Espada, ViaJ. racif., Vert, p. 10;3, pi. 2. f, 4. 



Head small ; snout prominent ; interorbital space as broad as the 

 uj^per eyelid ; tympanum more or le-ss distinct, three fourths the 

 width of the eye. Fingers slender, first extending beyond second ; 

 toes slender, with a rudiment of web ; tips of fingers and toes 

 swollen; subarticular tubercles very prominent; two small meta- 

 tarsal tubercles ; a conical tubercle on the middle of the inner edge 

 of the tarsus. The hind limb l)eing carried forwards along the body, 

 the tibio-tarsal articulation readies the eye. Upper surfaces covered 

 with small warts ; a flat, more or less indistinct parotoid ; lower 

 surfaces smooth, except under the thighs. Blackish broAvn above, 

 the warts lighter ; a few brown bands across the limbs ; belly and 

 lower surface of limbs largely marbled with blackish brown; throat 

 and chest brown, with a light median line. Male Y.'ith a large sub- 

 gular vocal sac. 



C. America : Colombia ; Ecuador. 



a, h. (S . Saravacu, Ecuador. Mr. Buckley [CI. 



V. 5 . Oanelos, Ecuaclov. ^\\: Buckley [C.]. 



3. Engystomops petersii. 



Engystomops petersi, Espada, An. Soc. Esp. i. p. 86, and ViaJ, Pacif., 

 Vert. p. 160, pi. 2. f. 3. 



Head very small ; snout prominent : tympanum very distinct, 

 half the width of the eye. Fingers slender, first not extending 

 beyond second ; toes slender, with a rudiment of web : tips of fingers 

 and toes swollen ; subarticular tubercles very prominent ; two small 

 metatarsal tubercles ; a conical tubercle on the middle of the inner 



