Rana virgaiipes 447 



Measurements. Length of body (25-30 mm.) in tail (48-63 mm.) i. 89-2.1, 

 average 1.99. Width of body (14.5-20 mm.) in its own length i. 45-1. 86, 

 average 1.61. Depth of body (13-17 mm.) 1.1-1.2 in body width, average 

 1. 14. Depth of body 1.66-2.07 in body length, average 1.84. Depth of tail 

 (16-21 mm.) in length of tail 2.9-3.6 average 3.12. Muscular part (8-1 1 mm.) 

 1.62-2.0 in depth of tail, average 1.84. Spiracle 1.17-1.33 nearer base of hind 

 legs or vent region (14-17 mm.) than the tip of snout (17-20 mm.), average 

 1.23. Spiracle to eye (8-1 1 mm.) i. 42-1. 82 nearer eye than spiracle to vent 

 (13.5-20 mm.) average 1.62. Eye i. 0-1.22 nearer to tip of snout (7-9 mm.) 

 than eye to spiracle (8-1 1 mm.), average 1.16. Nostril i. 0-1.4 2 nearer eye 

 (4-4.5 mm.) than eye to snout (4.5-5.5 mm.), average 1.20. Mouth (5-5.5 

 mm.) usually i. 0-1.3 7 larger than internasal space (4-5 mm.), average 1.12. 

 Mouth 1. 3 6- 1. 8 in inter orbital space (7-9 mm.), average 1.57. Internasal 

 space (4.5-5 mm.) contained 1,55-1.87 in interorbital space, average 1.74. 



The dimensions of the largest tadpole are : 



General remarks. The eggs of July 22, 1922, hatched out in camp and we 

 kept the tadpoles for a month. The tadpoles a month old had grown very 

 little beyond the size of one week-olds. Our conditions were poor for them. 



The last of June, 1923, Mrs. Wright and I were at Lakehurst, N. J., for a 

 very short period and secured no tadpoles. It was probably too late for tad- 

 poles. On May 22-23, 1924, "in a cut off pool from the main pond of Mr. 

 Emlie's pond where considerable sphagnum is are several tadpoles. We tried 

 to capture them with a dip net but didn't succeed. We resorted to a 10 ft. 

 minnow seine and caught 12 or 15 mature tadpoles. They must be Rana 

 virgaiipes or immense R. clamitans or Rana grylio. They cannot be the last, 

 yet in coloration have a black line on the upper and lower crests like the condi- 

 tion of Rana grylio. One tadpole had 4 labial rows of teeth. Associates of 

 these tadpoles are mud darters {Boleichthys fusiformis), mud sunfishes {Acan- 

 tharchus pomotis), little sunfishes {Enneacanthus ohesus), mud minnow (Um- 

 bra), American pickerel, and one adult greenfrog." 



*Tn a left over ditch south of Noble's H. andersonii breeding pools found 

 plenty of Rana virgaiipes tadpoles, one with four legs and one transformed. 

 A little water snake in the ditch, also an eastern painted turtle. Mud minnows, 

 the commonest fish. In the large Emlie's pond heard an adult." 



