78 Proceedings of the Biological Societg of Washington. 
poyUu'ior hice.s of the tliij^li more or le.s.s eoiopli'tel}' fsutrnse<l witli carrot 
reel; slioukier al)ove, below, and in front of the arm insertion with lar^i 
more or less coulluent carrot red blotches. In a young specimen (26 mm.) 
the lower snrlace of the body and liml)S l)lackisli slate with ver^' numer¬ 
ous small spots most of which are white, hut a few, with the inguinal 
region, carrot red. 
Habitat. —Found in the vicinity of Fundacion, Colombia. 
Tape specimen.—W\sQ\\m of Zoology, University of Michigan, Cat. No. 
45,571; hundacion, Colombia; August 16, 14)16; Arthur Sperry Fearse, 
collector. 
Description of type specimen.—VannW. Total length, 40 mm.; snout, 
4 mm.; diameter of eyc', 2 mm. Fore-limb reaching slightly beyond the 
snout. The tihio-tarsal ai’ticulation just reaching the elbow when the 
limbs are extended along the side. Toes blunt with rudiment of weh. 
A single, rather low, inner metatarsal tubercle, no outer tubercle; suh- 
articular tubercles distinct. Skin smooth, a fold around the head hehind 
the eyes. Blackish slate above with many small white spots; a trace of 
a fine median white line. Lower surface of hody and limbs with the 
upper surface of the hind feet carrot red, chin and throat about dee,}) 
neutral gray with numerous small white spots. Inguinal region and 
anterior and posterior faces of thigh carrot red, on the i)osterior side of 
the thigh interrupted by blackish reticulations. Axillary region carrot 
red, and shoulder with large carrot red sjwts above, below and in front 
of the arm insertion. 
Remarks. —^As has been pointed out to me by Dr. Leoidiard Stejneger, 
this species is similar in form and color to the INIatogrosso specimens 
described by Steindachner * as a color variation of Gastrophryne 
(Engystoma) ovale. Steindachner does not state that he has examined 
the shoulder girdle in these specimens, which are in the K. K. Natur- 
historisches Ilofmuseum in Vienna, hut they have been dissected by Dr. 
F. Siehenrock, at my re(juest, who states that the precoracoids are absent. 
In Hypopachus pearsei they are present in every specimen of the twelve 
examined, whereas they are absent in a typical specimen of Gastrophryne 
ovate from the same habitat. 
.A, specimen in the IT. S. National Museum (No. 14,718), catalogued as 
from Colombia, 8. A., which Doctor Stejneger has kindly ])ermitted me 
to examine, is to he referred to II. pearsei. It is an old specimem which 
has been partially dissected, and the precoracoids are broken, hnt pieces 
of the i)recoracoids remain and the other characters are as in the material 
described above. 
Local distribution and habits.—Hypopachus pearsei was found only in 
the vicinity of Fundacion. About this village there are a uuinher of 
marshes from which the forest has been wholly or partially cleared, and 
it was about these marshes that all of the specimens were secured. They 
were found in forms beneath logs in damp ])laces, hut in the drier parts 
of the swamps, generally about the margin of the cleared areas or in the 
Vorli. k. k. Zool.-bot. (ios. in Wien, bSC.I. p. 285, pi. XVI I, figs 1, -l.i. 
