BULLETIN 34, UNITED STATES NATIONAL MUSEUM. 



Mcaauvematt , in inches. 



Length, measured along axis of body: 



From snout to gape 55 



From suout to gular fold 1.00 



From snout to armpit 1. 55 



From suout to groin 3. 90 



From snout to behind anus 4. 75 



From snout to end of tail 8. 75 



Head : 



Width of head 1.00 



Length of orbit .20 



Distance between eyes . anteri- 

 orly 56 



Distance between outer nostrils . 35 

 Distance between inner nostrils . 36 



Body : 



Circumference of belly 3.75 



Body — Continued : 



Distance botweeu armpit and 



groin 2. 25 



Tail: 



Height of 'tail where highest .. .70 

 Breadth of tail where highest.. . 40 

 Limbs: 



Free i)ortion of longest finger.. .27 

 From elbow to tip of longest 



finger .95 



Free portion of longest toe 32 



From knee to tip of longest toe 1.25 

 Distance between outstretched 

 toes 3. 55 



Proportional dimensions. 



(Spec. 4082. Type of A. proserpine, Taraaulipas). 

 Head : 



Length of gape of mouth to its width more than half. 



Width of gape of mouth to distance from snout to gular fold. .. not quite equal. 



Width of gape of mouth to distance from snout to groin nearly 4 times. 



Width of gape of mouth to distance from suout to behind anus 4J times. 



From snout to gular fold contained in distance from snout to groin 3| times. 



From snout to gular fold contained in distance from snout to l)ehind 



anus 4 times. 



Distance anteriorly between eyes in length of orbit 3 times. 



Distance from eyes to nostrils in length of orbit 1 time. 



Distance between external nostrils in length of orbit nearly 2 times. 



Distance between internal nostrils in length of orbit nearly 2 times. 



Width of tongue to width of head more than half. 



Limbs: 



Free portion of longest finger contained in distance from elbow to tip.. 3 times. 



Free portion of longest toe contained in distance from knee to tip 3 times. 



Tail: Length from behind anus to rest of animal less. 



Body: Number of costal furrows (including axillary and inguinal) 12 



Measurements, in inches. 



Length, measured along axis of body : 



From snout to gape 31 



From snout to gular fold .GO 



From snout to arm [tit 90 



From snout to groin 2. 00 



From snout to behind auus 2. 40 



From suout to end of tail 4. 10 



Head : 



Width of head 52 



Distance between eyes anteri- 

 orly 32 



Distance botweeu outer nostrils .23 

 Distauce between inner nostrils .24 



Tail : 



Height of tail where highest.. . 



Breadth of tail where highest.. 

 Limbs : 



Free portion of longest linger .. 



From elbow to tip of longest 

 finger 



Free portion of longest toe 19 



From knee to tip of longest toe. . 61 



Distance between outstretched 

 toes , ,. 1.75 



20 



60 



