THE BATRACHIA OF NORTH AMERICA. 



81 



Head— Coiitiuuetl. 



From snout to jjular fold 'coiitaiiied iu distance fiom suont to groin .. . 3| times. 



From snout to gular fold contained in distance from snout to behind 

 anus 4^ times 



Distance anteriorly between eyes iu length of orbit 3 times. 



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



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



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



Width of tongue to width of head rather more than | time. 



Lin)bs: 



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



Free portion of longest toe contained iu distance from knee to 

 tip nearly 4 times. 



Distance between outstretched toes in length from snout to groin once. 



Tail: Length from behind anus to rest of animal nearly equal. 



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



MeaHurements, in inches. 



Length, measured along axis of body: 



From snout to gape .60 



From snout to gular fold 1.00 



From snout to groin 3.50 



From snout to behind anus 4.50 



From snout to end of tail 4.00 



Head : 



Width of head 1.05 



Width of tongue 55 



Length of tongue 45 



Length of orbit 22 



Distance between eyes anteri- 

 orly 65 



Distance between outer nostrils .40 



Head — Continued : 



Distance between inner nostrils . 45 



Tail : 



Height of tail where highest. .. .75 

 Breadth of tail where highest.. .45 



Limbs : 



Free portion of longest finger. . . 30 

 From elbow to tip of longest 



finger 95 



Free portion of longest toe 32 



From knee to tip of longest toe 1. 15 

 Distance between outstretched 

 toes 3.50 



Froportional dimensions. 



(Spec. 4696. Cimarron River.) 

 Head : 



Length of gape of mouth to its width.... about one half. 



Width to distance from snout to gular fold equal. 



Width to distance from snout to groiu 4 times. 



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



From snout to gular fold, contained in distance from snout to behind 



anus nearly 5 times. 



Distance anteriorly between eyes in length of orbit 3 times. 



Distance from eyes to nostrils in length of orbit IJ times. 



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



Distance between internal nostrils in length of orbit 2 times. 



Width of tongue to width of head little over ^ time. 



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. 



Distance between outstretched toes in length from snout to groin., about equal. 

 Body : 



Width compared with that of head equal 



Number of costal furrows (including axillary and inguinal).... Ig 



1951_Bull 34— G ' . 



