498 



BULLETIN 58, UNITED STATES NATIONAL MUSEUM. 



shields, most of those on the former with a central rounded tubercle; 

 body moderately depressed, its depth being less than half the length, 

 but considerably more than half the width of the carapace ; carapace 

 with nearly parallel sides, and three strong keels; shields with deeply 



386 



Figs. 385-386.— Geoclemys keevesii. JXnat. size. 385, carapace; 386, plastron. No. 211S1, 



U.S.N.M. 



cut concentric lines, radiating lines also fairly strong; nuchal small, 

 narrower in front, emarginate behind, as long as broad; first vertebral 

 pentagonal, broader in front than behind, not broader than the others 



387 



Figs. 387- 



-Geoclemys reevesii. IJ X NAT. SIZE. 387, TOP OF head; ;^K,s, side of head. No. 

 2U81, n.S.N.M. 



which are of subequal width and of the same width as the anterior 

 three costals; edge of marginals from third to eighth turned up; 

 posterior marginals not projecting their corners so that the posterior 

 outline of the shell is nearly even, not serrated; ninth marginal broad- 



