1062 REPORT OF NATIONAL MUSEUM, 1898. 



Entunia pliena.r Cope. 



EUTyENIA PULCHRILATUS Cope. 



Enionia piilchrilalus Cope, Proc. Amer. Phil. Soc. Phila., 1884, p. 174; Cat. Batr. 



Rc^pt. Central Amer. and Mex., Bull. U. S. Nat. Mus., No. 32, 1887, p. 73; Proc. 



U. S. Nat. Mils., XIV, 1892, p. 947.— Bocouut, Miss. Sci. Mex., 1893, p. 767. 

 Trojndonotiis ordinaim var. enues Boulenger, Cat. Snakes Brit. Miis., I, 1893, 



p. 209. 



Scales in nineteen rows. Lower row of scales smooth; urosteges, 

 sixty-seven; a dorsal stripe; lateral stripe bordered below by a brown 

 or black stripe; a black nnclial spot; head brown. 



At first sight this species looks like the U.favilahris Cope, but it 

 has characters of the E. eqiies and adds some of its own. 



The dorsal stripe, as in E. eqnes, occupies but a single row of scales. 

 The lateral stripe occupies the adjacent edges of the second and third 

 rows. The entire first row is covered by a broad brown band, which 

 defines the lateral light band very distinctly below. This is not seen 

 in either of the species above named. There are two rows of black 

 spots between the dorsal and lateral bands, but the keels of all the 

 scales involved in them are brown. There are sometimes spots below 

 the lateral light line on the neck, due to interruptions in the lateral 

 dark stripe. A large nuchal black spot, which is notched behind by the 

 median band and sometimes divided. Superior labials black-bordered 

 posteriorly, es])ecially the sixth, where the border is sometimes very 

 wide. Head above brown; lower surfaces uniform greenish, except 

 tail, which is yellowish below. Occipital spots very indistinct. 



The head is not very distinct from the neck. The frontal plate is 

 wider than the supraorbitals. Gastrosteges, one hundred and fifty- 

 eight; urosteges, sixty-seven. 



Measurements. — Total length, 465 mm.; length of tail, 105 mm. 



This handsome species varies in the intensity of its dark colors, the 

 ground between the dorsal spots being sometimes so dark as to give 

 the spaces between the yellow stripes the appearance of uniform bands. 

 In such specimens the lateral dark stripe is least interrupted. 



Boulenger unites this species with the E. eques. It, however, belongs 

 to a different section of the genus. 



According to Duges, this species is fotind in the States of Guana- 

 juato and Mexico. I have three specimens from the State of Mexico, 

 from Mr. Hoeje; four from the State of Puebla, from the Exploring 

 Commission, and one from Zacualtipan (Hidalgo), from Dr. S. Bernad. 



