224 Illinois State Laboratory of Natural Histori/. 



num; a stripe extending backward from the upper border of the 

 eye and expanding on the posterior part of the head, finally 

 extending along the dorsal side of the neck; a short stripe 

 extending from the posterior edge of the eye to the dorsal edge 

 of the tympanum; a broad stripe on the neck, which bifurcates 

 in front, sending its dorsal branch across the angle of the 

 mouth to the posterior edge of the eye and its ventral branch 

 across the jaws to terminate beneath the nostril; and a stripe on 

 the symphysis of the mandible, which bifurcates and sends 

 diverging branches along ventral side of neck. Fore feet with 

 two conspicuous stripes in front, and with narrower marginal 

 stripes; webs largely pale yellow. Tail with two stripes above, 

 which converge and finally join in a single median stripe; and 

 two similar stripes beneath converge from each side of the vent 

 and also join in a single median stripe. 



Described largely from a single young example taken on 

 Long Island in the Mississippi River at Quincy. The charac- 

 teristic marking of the plastron becomes obscure with age. The 

 following is Gray's very unsatisfactory description: 



"Shell oblong, solid, rather depressed in the center, con- 

 vex on the sides, olive waved with irregular black-edged pale- 

 dotted greenish lines placed on the edge and across the middle 

 of each shield; vertebrals nearly square, first urceolate, the 

 rest 6-sided; beneath black, yellow-dotted; sternum flat, sur- 

 rounded with an irregular yellow edge, front edge deeply den- 

 ticulate." (Cat. Tortoise, etc., in Coll. Brit. Mus.) 



The species is very common in bottom-land lakes and 

 ponds at Quincy, but has not been taken elsewhere in the State. 

 It is closely related to C. marginata., with which it agrees in 

 the arrangement of the dorsal and costal plates. The elder 

 Agassiz states that the ground color is copper-red or bronze. 

 He records it as occurring in the Osage River, Missouri, and at 

 St. Louis. 



Ohrysemys marginata, Agassiz. Western Painted Tuetle. 



Chrysemys marginata, Agassiz, L., Contr. Nat. Hist. U. S., 1857, 

 I., p. 439; II, pi. 1, fig. 6. — Smith, Geol. Surv. Ohio, Zool. 

 and J3ot., IV., p. 664.— True, Yarrow's Check List N, A. 

 Kept, and Batr., 1882. 



