Hylidae 



Leidy at Jackson, New Jersey. The third was found hy Dr. J. A. 

 Peters at May's Landing, New Jersey, in 1888. In 1889, Dr. J. 

 Percy Moore captured two specimens, both males, at Pleasant 

 Mills, New Jersey. In 1901 a specimen was found at Clementon, 

 New Jersey, and was presented to the Philadelphia Academy of 

 Science by Witmer Stone. Finally, in September, 1904, for the 

 sixth time, Hyla andersonii came to light. It was found by 

 Mr. William T. Davis at Lakehurst, New Jersey. It was shaken 

 from a low oak tree during a hunt for insects. 



The photographs of the colour plate are from the last- 

 named specimen, which was kindly loaned for the purpose by Mr. 

 Davis. 



In appearance this tree frog is one of the most interesting 

 representatives of its kind. It is nearly as large as the common 

 tree frog, Hyla versicolor, and has a most unusual pattern of dress. 

 The vivid green, with its bounding lines of white and black, gives 

 the appearance of a tailor-made coat from which hands and feet 

 protrude. A somewhat harlequin effect is produced by the 

 lengthwise colour division of the hand and foot. This tree frog 

 looks rather bizarre in side view because of the prominent scallops 

 of colour extending to the throat and breast. Although in its 

 green and white lines it bears a superficial resemblance to Hyla 

 cinerea (see Pigs. 154 to 160), on close inspection there is no 

 possibility of confusing it with any other North American tree 

 frog. It resembles somewhat the common tree frog of Europe. 

 (Hyla arhorea.) 



The creature has a very gentle and alert expression. It is, in 

 fact, one of the most alert and timid of our tree frogs. In captivity 

 it is seldom content until it finds some moist hiding-place in moss 

 and ferns or under wet decaying pieces of wood. When such a 

 place is found, the Hyla backs into it with the burrowing move- 

 ments common among the Salientia. Here, with flattened body 

 and closed eyes, it remains sleeping away the days and nights. 

 The sleeping position is interesting, in that the long delicately- 

 coloured toes are lifted to the green of the sides, and rest pressed 

 close to the body, just above the shoulder. 



This Hyla is relatively hardy. The tree frog found June i, 

 1888, was still alive and well in January, 1889. How much longer 

 it lived is not recorded. The specimen caught in September, 

 1904, is in plump condition now in June, 1905. 



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