178 ON THE REPTILIA OF PERU. 



Color above blue, a coppery golden spot within the apex of many of the 

 scales, which extends on those of the external two rows, so as to cover the scale 

 except at its base. Gastrosteges coppery-golden, the front margin sea-green. The 

 blue scales have a black tip, and often a narrow border ; the head is uniform green, 

 except the yellow lips and a narrow black line along the upper margin of the 

 posterior labials. 



This splendid species is nearly allied to the T. marginatus, Cope, having the 

 same short head and nasal scuta. It differs in its smooth scales, and in the colora- 

 tion, for in that species the golden is entirely wanting, and the head scuta as well 

 as the scales are broadly black bo'rdered. The T. marginatus in addition has the 

 gastrosteges strongly angulate and recurved on the sides, and only twice as wide 

 as long. 



Of my two specimens of T. marginatus, one has eight superior labials, as in 

 the type, the other nine, on both sides. Their measurements are as follows : — 



M. 



Total length (No. 1) 1.190 



Length of tail (No. 2) 460 



Total length (No. 1) . . . . . . . 1.155 



Length of tail (No. 2) ....... .450 



The Leptophis ortonii was discovered by Professor James Orton on the Soli- 

 moens or middle Amazon, and I take great pleasure in dedicating it to him as a 

 token of esteem. 



56. Philodryas viridissimus, Linn. 



From between Moyabamba and Balsa Puerto, Peru. 



51. Herpetodryas holoohlorus, Cope, sp. nov. 



Scales in ten longitudinal series, all wide, especially those of the first, which 

 are as deep as long. The scales of the two vertebral rows are also wide, and all 

 are smooth. The head is of normal form and size, with vertical lores, and eyes of 

 moderate size. The rostral is as broad as high, the loreal a. very little longer than 

 high, and the preocular not reaching the frontal. Two postoculars, temporals 

 1-1 ; three scales only bordering the two parietals, whose posterior outline is 

 strongly notched. The common suture of the parietals is shorter than the frontal 

 and the superciliary. The frontal is narrowed behind, and the width in front less 

 than the lateral sutures. Labials nine above, all rather low, fifth and sixth, and 

 sometimes a corner of the fourth, entering the orbit ; eleven inferior labials, of 

 which seven are in contact with the geneials. 



