THE REPTILE BOOK 



PLATE XXI 



BLAM UNO'S TURTLE; SEMI-BOX TURTLE, Emys blandingii 

 The plastron has a central hinge, but only the front lobe can be perfectly closed 



I'AIXTEI) ]',( >X TURTLE, Cislitdo ornal.i 



A typii al representative of its gemis. The plastron lias a central hinge. Both lobes close tightly in time of clanger 

 This spciies ranges from the Mississippi Valley to the Kmkics 



COMMdV !!<>X TURTLE. Ci^tu,l ,-,m>!in,i 

 Inhabits the Eastern States. Note the specimen on the left having the lobes of the plastron completely closed 



