34 CALIFORNIA ACADEMY OF SCIENCES. 



The carapace is indefinitely marbled above with olive, 

 yellow, and dark brown. Near the middle of each cos- 

 tal plate is a vertical bar of yellow, while a narrow or 

 indistinct yellow line runs along near the anterior mar- 

 gin of each costal plate. In front of each of these yel- 

 low markings is a large vertical blotch of dark brown. 

 The vertebrals show traces of yellow longitudinal lines 

 near their lateral edges. The edge of the carapace is 

 yellow; from it yellow bars run up on the middles of the 

 marginal plates. Between these yellow bars are dark 

 brown or black ocelli with indefinite yellow concentric 

 lines. The lower surfaces of the marginals are blotched 

 with dark brown. The plastron is yellow, often heavily 

 blotched with dark brown. The head and limbs are 

 grayish or brownish olive, with numerous longitudinal 

 yellow lines. There is a large, elongate, yellow or orange 

 blotch behind the eye. 



The colors of a living specimen w r ere as follows: Large 

 postocular blotch, scarlet- vermilion or flame scarlet; 

 lines on side of head greenish white; lines on top of 

 head dull yellow; eye Paris green with black cross-bar; 

 'costal and marginal markings chrome yellow and dark 

 seal brown (almost black); costal bars tinged with cad- 

 mium orange. 



Length of carapace 250 



Length of plastron 232 



Width of carapace 175 



Width of plastron 139 



Length of tail. 32 



Distribution. Boulenger records specimens of this 

 turtle as having been collected in British Columbia and 

 at Walla Walla, "British Columbia" [^Washington?]. 

 Harlan's "Emys Ore.goniensis " was secured in ponds 

 near the Columbia River. This turtle has twice been 



