662 KEPTILES — EMYDIDiE. 



pressed with a persistent keel ; plastron immovably soldered together and to the 

 oarapax ; outer side of fore legs with a row of scales ; toes five in front and four behind ; 

 posterior feet with the toes broadly palmate. 



* Head and neck with yellow lines, often reticulated, and a single spot on each side 



or none ; keel not very prominent. G. geographica. 



* Head with large yellow blotches or stripes ; keel very prominent. G. lksukurii. 



Gb4Ptemy8 geographica LeSueur. 



Gcos:irapIiic or map Turtle. 



Testudo geografUoa, LbSubur, LeConte, Holbrook. 

 JEmys geographica, LeContb, Kirtland, DeKat. 

 Emys macrocepliala et megac^liala, Holbkook. 

 Emya lahyrinthica, LeSueur. 

 Graptemys geographica, Agassiz. 

 Malacoclemmys geographica, Cope, Jordan. 



Color of carapax olivaoaous to brown, with a network of yellow stripes interlacing in 

 snch a manner as to give a cellular appearance, these markings not so prominent in the 

 center, and in some specimens nearly or quite obsolete ; plastron yellow, often black in 

 the center ; head above dark olive, with numerous yellow longitudinal lines, and often 

 a small spot of the same color as above, and with similar lines ; legs and tail olivaceoui, 

 with yellow stripes ; under sides of marginal plates yellow, with brown spots contain- 

 ing yellow lines within ; plastron and carapax hollowed out in front to fit the neck, and 

 notched behind ; marginal plates twenty- five, the anterior narrow, but broadest behind; 

 costal and vertebral plates alternating ; first neural nearly quadrilateral, with a pro- 

 jection backwards, the last septagonal, irregular ; gular triaogular ; the remaining sternal 

 shields four- sided, abdominal much the largest; anterior angle of anals received into a 

 depression between the two preanals ; tail short and thick ; tympanum not prominent. 

 Length of carapax, 9 inches; height of carapax, 2f inches; tail from anus, li inches. 



Habitat, New York, Pennsylvania, Michigan, Ohio, Indians, Illinois, and Arkansas. 



The Geographic Tortoise probably occurs in every part of the State, 

 having been obtained at Toledo, Rockport, and Cincinnati. They are 

 very bold, active, vigorous animals, approaching even the Chelydridm 

 in disposition, and their flesh is said to be very palatable. 



A specimen before me shows an abnormality, having an extra verte- 

 bral and two extra costal plates, one on each side. 



Geaptemys lesdeukii Gray. 



Pseudog:eog:rapIiic Tortoise or LcSucur's Map Turtle. 



Testudo geographica, var. b, LeSueur. 



Emys geographica. Gray, var. a, LeContb. 



Emys lesueurii, Gray. 



Emys paeudogeographica, Holbrook, DbKay. 



Graptemys lesueurii, Agassiz. 



Malacoclemmys pseudogeographicus, Cope, Jordan. 



Color of carapax, plastron, limbs and tail, same ae the preceding, but the yellow 



