I 



222 Trans. Acad. Sci. of St. Louis. 



that when this frog is whipped it will cry much like a 

 -child. These frogs are very voracious, and seem to catch 

 and swallow almost any living thing that they can possi- 

 bly devour. They feed on crayfishes, small fish, insects, 

 worms, snails, mice and even their own species. Prof. 

 J. A. Allen says that one seized and swallowed a cedar 

 hird which he had shot, although the wings and tail con- 

 tinued to protrude out of the frog's mouth. Others have 

 been found with snakes (grass snakes) in their stomachs. 

 (Hay.) 



The tadpoles require two years for their complete de- 

 velopment. The general color of the tadpole above is 

 dark olive green, yellowish white below. 



In this neighborhood this frog is hunted mostly at night. 

 When bull 's eye lanterns are used to find the frog, which 

 will not move as long as the glare of the light is turned 

 on it, it is readily secured by stabbing with a "gig." In 

 daylight the frog is shot, when partly or all out of the 

 water near the shore, or it is lured with hook and line 

 baited with a piece of red flannel. This frog is much rel- 

 ished as an article of diet. 



-33. Rana cantabkigensis Baird. Cambridge Frog. 



Rana temporaria su'bsp. cantahrigensis, Rana cantabrigensis cantadri- 

 gensis. 



Description. — Head rather depressed, snout elongate, acuminate. Nos- 

 trils equidistant between orbit and end of muzzle. Vomerine teeth in 

 two oblique groups, extending beyond the level of the hinder edge of 

 the choanae. Interorbital space narrower than upper eyelid. Tympa- 

 num hardly two-thirds the diameter of the eye. Fingers moderate, first 

 extending beyond the second. Heel to middle of orbit. A glandular 

 ridge on the inner edge of the tarsus. Webs of toes short. Subarticular 

 tubercles of fingers and toes moderate. Inner metatarsal tubercle 

 rounded, rather prominent and obtuse edged. A minute external tuber- 

 cle. Male with two internal vocal sacs. The skin between the dorso- 

 lateral glandular dermal folds smooth. 



Color. — Above yellowish-brown; a dark vitta through the eye, ex- 

 tending and widening behind the tympanum, then tapering to a point 

 at the posterior end of the upper jaw. Lateral fold of skin light colored, 

 as is also in some old specimens a median dorsal line extending from 



