152 PROCEEDINGS OF THE ACADEMY OF [Mar., 



or more black spots as the symphyseal is; in No. 6,106, the geneials 

 as well have these spots. 



Dimensions and Variations. —ThQ total length of these three 

 snakes reaches from 19.5-29 cm.; the tail from 4.7-5.8 cm. or 4|-5j 

 in the total length; the gastrosteges are 143-150; the urosteges, 

 39-46; anal divided, and in one the gastrostege ahead is also divided. 

 Tail very spike-like and sharp. Scales 15-15-15; temporals 1-1; 

 oculars 1-2 in No. 6,106, the preocular large on the right side and 

 small on the left side, the prefrontal taking the place of the normal 

 iipper preocular, 2-2, in Nos. 6,104 and 6,105. The supralabials in 

 No. 6,106 are 8, with the eye resting on the 4th and 5th; in No. 

 6,105 on the right side they are 8, with eye on the 4th and 5th, while 

 on the left side there are 7, with the eye on the 3d and 4th; in No. 

 6,104 there are 7 supralabials on each side, the eye being over the 

 3d and 4th on each side. In Nos. 6,105, 6,106 the supralabials 

 have the clear band of ventral color, but in No. 6,104 this color is 

 heavily encroached upon by black. 



6105 6105 6106 g^Qg 



Fig. 5. — Diadophis punctatus (Linn.) 



In view of Cope's establishment of D. amabilis stictogenys upon 

 three specimens from New Orleans, Pearl River, Miss., and Savannah, 

 Ga., the last locality not far from Okefinokee Swamp, our three 

 specimens prove interesting. To find these three showing such a 

 gamut of differences is rather fortunate. Our specimen No. 6,104 

 is almost a duplicate of Cope's D. a. stictogenys. It has 7 supra- 

 labials, a speckled gular and labial region and the eye resting on the 

 3d and 4th supralabial; liut like his specimen, the three abdominal 

 rows of ventral spots, the 150 gastrosteges and other characters 

 suggest D. punctatus. It was taken under the same log as an almost 

 immaculate-chinned D. punctatus, Avhich has 8 supralabials on the 

 right side and eye on the 4th and 5th and 7 supralabials on the 

 left side and eye over 3d and 4th. No. 6,106, captured in a similar 

 habitat, is a good D. punctatus in scutellation, but has the gular and 

 labial regions spotted as in Cope's subspecies. The numerous 

 variations in these three specimens, the circumstances of their 

 capture, the isolated character of their habitat (Billy's Island), an 

 inspection of Cope's type and Dr. vStejneger's previous decision and 



