1894.] NATURAL SCIENCES OF PHILADELPHIA. 203 



narrow transverse line near base of gastrosteges, lead colored. Upper 

 lip, except upper parts of Nos. 2-3-4, 8 and 9, yellow. 



No. 116; La Candelaria, Bruno Carranza. 



This species is allied to tlie D. percarinatus Cope (Proceeds. 

 Amer. Philos. Soc, 1894, p. 344), but differs in the much smaller 

 number of more feebly keeled scales; in the shorter and wider head, 

 and in the coloration. 



Dr. Giinther has united under the head of the Dendrophidlinn 

 deudrophis (Dnjmobi)is dendropltis Schl., Fauna Centrali- Ameri- 

 cana, 1894), the species Driimobins cldoroficus and Crossa)dhera 

 melaiwtropis Cope. Bocourt has pointed out that the genus Dendro- 

 phidium differs from Drymohius in the entire anal plate and I have 

 not ft)und any variability in this respect in the specimens at my dis- 

 posal. In the D. dendroplds the eye is larger, its long diameter 

 exceeding the width of the superciliary and frontal plates together; 

 while in the species mentioned above, and the D. percarinatus and 

 D. rhombifer Pet., the diameter of the eye either equals the width of 

 those plates, or, more fi'equently is considerably less. The Crosmn- 

 thera mdanotropis further differs in the short occipital plates, whose 

 middle suture is considerably less than the diameter of the orbit, 

 while it is the same in the D. deiidropJm. 



Leptophis ultramarinus sp. uov. 



The relation of this species to those already known may be shown 

 in the following table. I mention here that a study of the species 

 shows that it is impossible to keep apart as a separate genus (P/ti7o- 

 thamnus) the species with smooth scales. 



I. Scales all smooth. 



Nine superior labials. Scales above blue tipped with golden ; 

 scuta and two inferior rows of scales golden with green bases ; no 

 stripes, L. ortonii Cope. 



II. Three median rows smooth, two or three on each side keeled. 

 Eight supralabials ; green, with black median lines on two or 



three dorsal rows of scales; pale oblique cross- lines on the anterior 

 half of the body, L. sargii Fisch. 



III. Five median dorsal rows keeled. 



Eight supralabials; above uniform ultramarine blue ; below and 

 one and a half rows of scales, with upper lip, silvery, 



L. ultramarinus Cope. 



