56 COPEIA 



Sex $ 3 $ $ 3 $ 



Long diameter of 



eye 25. 25. 28.5 24.1 25.9 25.9 



Distance from tip of • 



snout to front of 



eye 25. 25. 25. 24.1 24. 22.2 



Length of maxillary 



bone 23.3 23.2 25. 20.6 22.2 25.9 



Length of mandible 36.6 35.7 33.9 32.7 35.1 35.1 



Number of fully de- 

 veloped dorsal rays 9. 9. 9. 9. 9. 9. 



Number of fully de- 

 veloped anal 'rays 10. 10. 10. 10. 11. 11. 



Number of pectoral 

 rays 15. 15. 15. 16. 15. 15. 



Number of ventral 

 rays 10. 10. 10. 10. 10. 10. 



Number of branchi- 

 ostegal ravs, each 

 side 8/8 8/8 8/8 7/7 7/8 ?/7 



X umber of gillrak- 



ers, each side 4+8 4+8 4+9 4+8 5+9 ? 



4+8 4+8 4+9 5+9 5+9 ? 



Number of scales 6-62-6 6-62-6 6-62 7-63-5 



Number of verte- 

 brae 50. 



W. C. Kendall, 

 U. S. Bureau of Fisheries. 



A NOTE ON THE HIBERNATION OF 

 KINOSTEBNON PENNSYLVANICUM. 



The manner of hibernation of our native mud- 

 turtles conies so seldom under the observation of nat- 

 uralists that the following note may be of interest. 



