The Musk c: Mud Turtles 



head bands arc very obscure. These are generally old individ- 

 uals and the head is brown, streaked or speckled with black. 

 Dimensions. — Tiic measurements of an adult specimen 

 from Enterprise, Florida, are given: 



Length of Carapace 4 inches. 



Width of •■ 2j " 



Length of Plastron 3 



Width of Head ij " 



From these measurements it will be seen tii;;t the head is 

 proportionately larger than with A. odoratus. 



Distribution. — The southeastern portion of the United States 

 — Florida to Texas. 



Habits. — Similar to the preceding species. 



THE KEELED MUSK TURTLE 



AromocheJys carinatus, (Gray) 



The carapace is high and wedge-shaped, with a strong 

 keel upon the rear portion, a character existing with young 

 specimens of the two preceding species, but retained in the adult 

 form of the present species. The head is proportionately larger 

 than that of A. odoratus and the jaws are more strongly de- 

 veloped. 



Colouration. — Unlike the allied species the head is dark 

 brown or olive, profusely spotted with black. There are no 

 traces of stripes. 



The carapace is dull olive or brown, with black spots or 

 streaks, or radiating bars. The plastron is yellow. 



Dimensions. — The Keeled Musk Turtle attains a length 

 of shell of five inches, but the proportions of a smaller specimen 

 are given. 



Length of Carapace 32 inches. 



Width of " 2f " 



Length of Plastron 2i 



Width of Front Lobe at Hinge 1 1 



" " Rear " " " i^ " 



Distribution. — The southern portion of the United States, 

 from Georgia (inclusive) to Arizona (inclusive). 



Habits. — The general habits appeal to the other species 

 of the genus. 



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