178 BULLETIN 31, UNITED STATES NATIONAL MUSEUM. 



Spelerpes ruber sticticeps Baird. 



Proceed. Ac. Phila., 1809, p. 108. (Name only.) 



This variety in all its details of shape, proportions and general 

 structure resembles P. ruber. The limbs, however, are considerably 

 smaller and weaker, and the external nostrils seem to be farther apart. 

 There are fifteen costal furrows, excluding the axillary. 



The color in alcohol is a dark reddish-brown or brownish-red above j 

 lighter red beneath. The color of the upper parts is very uniform and 

 continuous, though a careful examination shows some very obsolete 

 rounded spots of darker on the sides. The sides and beneath are 

 everywhere sprinkled with minute blackish dots. The head is uni- 

 formly colored like the back, without dark spots, but its sides and an- 

 terior portion are closely sprinkled with whitish specks, which are very 

 distinct and characteristic. 



This variety differs somewhat in form from >S'. ruber, as stated. It 

 can be separated from the latter by the small whitish specks on the 

 muzzle in the uniform ground color, typical S. ruber always having 

 larger black spots, without any white. The color above is deeper and 

 more continuous than in S. ruber without the distinct dorsal spots 

 always distinguishable in it. The ground color appears to be of a 

 much deeper red than in S. ruber. 



Projioriional dimensions. 

 Head 



Leugth of gape of mon tli to its \Yidth three-fourths. 



Width to distance from snout to groin nearly 6 times. 



From snout to gular fold contained in distance from snout to groin .... 4^ times. 



Distance anteriorly between eyes in length of orbit twice. 



Distance between external nostrils in length of orbit 1| times. 



Limbs : 



Free portion of longest finger contained in distance from elbow to tip.. 5 times. 



Free portion of longest toe contained in distance fi'om knee to 

 tip nearly 4 ti'nes. 



Distance between outstretched toes in length from snout to groin . nearly twice. 



Distance between outstretched toes in length from snout to 



behind anus more than twice. 



Body: Number of costal furrows (including inguinal) 15 



Measuremeiifs, in inches. 



Length, measured along axis of body : 



From snout to gape 30 



From snout to gular fold .. . .57 



From snout to armpit 85 



From snout to groin 2. 50 



From snout to behind anus 2.85 



From snout to end of tail 4. 90 



Tail 2.05 



Head: 



Width of head 43 



Length of orbit 11 



Distance between eyes anteriorly . 22 

 Distance between outer nostrils . 16 

 Distance between inner nostrils . 10 



Body : 



Circumference of belly 1> 50 



Distance between armpit and 



groin 1.65 



Tail: Height of tail where highest 



est 40 



Limbs : 



Free portion of longest finger . 07 

 From elbow to tip of longest 



finger 35 



Free portion of longest toe 12 



From knee to tip of longest toe . 45 

 Distance between outstretched 

 toes , 1. 35 



