22 THE UNIVERSITY OF OKLAHOMA 



Studies of the map of this region show that Nail's Crossing 

 is some 17 or 18 miles up-stream from Armstrong, where it was 

 placed in River Blue, July 1918. During the three years it has 

 been captured twice, and averaged six miles up-stream migration 

 per year. While there has been a general up-stream migration 

 in this period, doubtless there have been a number of advances 

 and lapses in its general route. 



The specimen while in captivity bit an oar in two, bit through 

 an inch board, and cruched mussel shells with ease. Before its 

 release it had become so used to visitors that it seemed to enjoy 

 the presence of students in the laboratories where it habitually 

 basked in the winter sunshine on the floors. The specimen was 

 estimated to be about 100 years old. 



X. FURTHER NOTES ON THE MIGRATION OF - 

 TERRAPENE CAROLINA IN OKLAHOMA 

 M. M. Wickham 



From the Zoological Laboratory of the University of Oklahoma. 



Contribution No. 13, Second Series. 

 (Abstract) 



Following the study of migratory behavior of the southwestern 

 liDX terrapin, Tcrrapcnc Carolina, begun in 1915 in the biological 

 !al)oritories of the Southeastern State Teachers' College, at Durant, 

 Oklahoma, on July 15, 1921, I liberated sixteen specimens bearing 

 serial numbers 100 to 115. from the campus of that institution. 



Perforations were made through the sinistral eleventh marginal 

 plate, and a copper disc tag affixed with copper wire ; all liore the 

 serial number, date, and initials "S. E. N. DURANT." 



For three days these tagged specimens were displayed behind 

 the plate glass windows of the Chamber of Commerce, at Durant. 

 attracting public interest and notice in the press, the object of 

 which was to enlist public cooperation in looking for and reporting 

 the migrants. A map is being kept on which is charted the perigrina- 

 tions of each migrant by serial number together with dates of each 

 report. Accumulating data along this line will shed some light 

 on the ecologj' of this species, and indicate whether or not they are 

 extremely local, subject to seasonal or periodic migrations, and the 

 average Individual range. 



