224 PROCEEDINGS OP THE ACADEMY OF 



suture from the nostril to the labial border. Two pairs of gene- 

 ials; a loreal; rostral obtuse. The head is little distinct from the 

 body, and the pupil is round. 



The form of this species is stout and subcylindric, the tail 

 enterino- the total lenoth 4.33 times. The head is stout, oval, the 

 profile a little arched. The centre of the orbit, anterior to the 

 middle of the lip margin. The rostral is visible from above; the 

 nasals approach so as to reduce the internasals to a subtriangular 

 form each, of which the middle and posterior suture are equal. The 

 frontal is long, and with parallel sides, its length exceeding that 

 of the head in front of it. The parietals are still longer, and 

 wide, with subtruncate outline behind. Loreal plate higher than 

 long, half the height of the single preocular, which does not 

 reach the frontal. Postoculars 2 ; temporals 1-2, the first in con- 

 tact with three labials. Superior labials eight, their height sub- 

 equal, the fourth and fifth bounding the orbit. Inferior labials 

 nine, six in contact with geneials, five with the first, two with the 

 second geneial. Latter subequal. Scales in seventeen series, those 

 of first deeper than long. Those of sides at vent and of basal 

 two-thirds of the tail roof-shaped or obtusely keeled. About one- 

 sixth of the length in front of and behind the vent compressed, 

 the dorsal outline keel-formed. Gastrosteges 120; urosteges 54. 



Coloration above, black, with a very faint pale line along the 

 centre of each scale of several lateral series. The lines are more 

 distinct near the vent and on the tail, and heighten the effect of 

 carinfe produced by the angulation of the scales. Beneath, pale 

 in the alcoholic specimen ; the posterior half of the body, with the 

 tail, red ; each scutum with a short black crossbar at its ends on 

 the anterior margin. These cease a short distance anterior to the 

 vent. 



Length nine inches. Discovered at Yolusia, Florida, by Ed- 

 ward Tatnall, of Wilmington, Delaware. 



This interesting addition to our reptile fauna is quite unlike 

 any species heretofore found in our territory. Its nearest affinity 

 is apparently with the G. mitis of Baird and GLi'ard, common in 

 California. The only other American species, G. episcopa of Ken- 

 nicott, has been found in Texas. 



[November 21, 



