130 PROCEEDINGS OF THE ACADEMY OF [Mar., 



which made the digging up of the hzards a comparatively easy task. 

 Between the plowed furrows, also, in holes from 4 to 12 inches deep, 

 were deposited the eggs, usually four or five together. The eggs 

 were about 16 mm. in length by 10 mm. in greatest diameter, 

 ellipsoidal, comparatively soft, semitranslucent, and almost salmon- 

 colored; not smooth or shining, but slightly rough and subpubescent. 



Little data were secured on the life history or the breeding habits, 

 but from the fact that eggs were secured at this time — June — and 

 .also the fact that several of the specimens taken showed the blue 

 abdomen characteristic of the breeding male, it is evident that this 

 month represents at least a part of the breeding and egg-laying 

 season. Since, moreover, the reptilian developmental period is 

 comparatively long, the bulk of ovulation must have been practically 

 over, or some of the females taken would have been found with 

 eggs, which was not the case. Specimens of C sexlineatus were 

 found in the stomachs of two blacksnakes (Zamenis constrictor 

 constrictor, C. U., Nos. 6,157 and 6,155), a fact which shows that this 

 species of lizard, like many others, shares the fate of providing food 

 for the larger reptiles of the swamp. 



The variations of the specimens taken are especially interesting 

 from the fact that all those described are from one locality and were 

 all taken within a period of approximately a month, so that the 

 variations cannot be explained by season or habitat. 



A number of striking differences may be observed in the Okefinokee 

 forms as compared with Cope's description and figure,^^ which were 

 used as a basis for study. It should be noted that the figure shown 

 by this author (p. 594) does not agree with the description (pp. 594- 

 596). This is particularly true in the discussion of the head and 

 anal regions. For example, the figure (cf . Cat. No. 4,878, U. S. N. M.) 

 shows a small plate between the frontoparietals, while no mention 

 is made of such a structure in the text; the figure shows seven 

 supralabial plates, while the text notes five; four anal plates are 

 figured, while the description states that three is the correct number. 

 On the whole, the specimens examined conform much more closely 

 to the text of Cope than to his figure. 



The following variations are to be found in the Okefinokee speci- 

 mens, these variations being chiefly in scale and plate arrangement 

 rather than in size or comparative measurements, although none 

 were collected in the swamp which were as long as 235 mm., the 



16 



Rept. U. S. Nat. Museum, 1898, pp. 593-598. 



