49. KINOSTERNON 969 
Length of carapace... 115 118 121 122 123 144 
Length of plastron -.105 103 106 107 109 134 
Width of carapace _.... 80 79 86 83 85 101 
Width of plastron ___ 60 61 66 62 65 79 
Remarks.—W hat has been said under the head K. flaves- 
cens applies, but need not be repeated, here. 
Distribution.—This turtle is common in parts of Arizona, 
where it seems to be generally distributed throughout the 
Gila River and its tributaries. It lives also in the Colorado 
River, but whether it ascends this river above the mouth 
of the Gila is not known. It is said to range across New 
Mexico to southwestern Texas. 
In Sonora it has been taken in the San Pedro River, in 
the Sonoyta River three miles from Sonoyta, in Cajon Bonito 
Creek, in the San Bernardino River, and in Guadalupe Can- 
yon. 
In California, it has been collected on the banks of the 
Colorado River opposite Yuma and at Palo Verde, in Im- 
perial County. 
In Arizona, specimens have been secured at Yuma, and 
near Adonde, Yuma County; Phoenix and Cave Creek, 
Maricopa County; Fort Whipple and Fort Verde, Yavapai 
County; Tucson and Sabino Canyon in the Santa Catalina 
Mountains, Pima County; Rock Creek, Navajo County; the 
Chiricahua Mountains, Fairbank, six miles east from Here- 
ford, and the Huachuca Mountains, Cochise County; Gard- 
ner Canyon in the Santa Rita Mountains, and Nogales, Santa 
Cruz County; and at Ash Creek, Warsaw, and Grand Cen- 
tral Mills. 
Habits ——While this turtle is very aquatic in habits, it 
sometimes leaves the water to bask in the sun. It is carnivor- 
