1026 



REPORT OF NATIONAL MUSEUM, 1898. 



the superciliaries are raised, reiulerinj;' the fore part of the crown an 

 inclined phme, yet the muzzle is higher than in E. proxima. 



The Eutmnia megahps connects the species of the E. saurita group 

 with the ordinary types of the genus with the larger number of lateral 

 plates and dorsal scales. It is confined to our southwestern border and 

 to the northern part of Mexico. It is evidently the most abundant 

 snake in Chihuahua. The large number of specimens sent from near 

 the city of that name display very little variation, and agree with one 

 from New Mexico, described by me as above. The lateral band gener- 

 ally occupies only the third row of scales, but sometimes borders the 

 fourth. The dorsal band very frequently occupies but one row of 

 scales, but occasionally covers the halves of the adjacent rows. Cat. 

 i^os. 1422;)-27-58-50-G0- G7-77-S5-S<)-02. 



I took a specimen on Duck Creek, which is a tributary of the Gila in 

 southwestern New Mexico. It was in swampy ground near the water. 



Eutivnia meyalops Kennicott. 



Catalogue Number 

 j mens. 



765 



8056 

 7247 

 7248 

 8418 



16.502 



1C957 



17146-7 



17558 



Locality. 



TucsoD, Arizona. 



Wli.n 

 collected. 



Camp Grant, Arizona . 



Mexico 



Chiljiiahua. Mexico 



Rio Grande, Colorado.. .. June- 



Chill iialiua, Mexico ' 



Yuma, Arizona ' 



Tucaou, Aiizoua ..' 



....do 



do 



-, 1873 



From whom received. 



Nature of 

 8])e(;iinen. 



Maj. W. H. Emory, U. 

 S. A. 



E. Palmer 



Major Rich 



Dr. T. H. W(l)l. 



H. W. Hcushaw 



E. Wilkinson... 



C.R.Orcutt 



P. L. Jony 



Herbert J5ro\yn 



do 



Alcobolic. 



do. 

 do. 

 .lo. 

 do. 

 do. 

 do. 

 do. 

 do. 

 do. 



EUT.ffiNIA RADIX Baird and Girard. 



EuUrnia radix Copk, Check-list N. Ainer. Batr. l^ept. , 1875, p. 40. 



7i'M/ai«ia radix Baird and GiUARU, Cat. N. Amer. Rcpt.,Pt. 1, Serpents, 1853, p. 34. 



Eutwnia haydenii Kennicott, Rept. U. S. Pac. R. R. Surv., XII, Snppl. I, 1859, 



p. 298. 

 Tropidonotiis ordiuatus var. radix Boulkngek, Cat. Snakes Brit. Mus., I, 1893, p. 



211. 



Form rather robust, tail less than one-fourth the total length. Head 

 moderately distinct, muzzle rather short, eye not enlarged. Scales in 

 twenty-one longitudinal row.s; the inferior row as deep as long, smooth 

 or nearly so, and not at all or very feebly notched at the apex. Scales 

 of second row not very strongly keeled, and feebly or not notched. 

 Scales of other rows more elongate, strongly keeled, and feebly or not 

 notched. Internasals and i)refrontals wider than long; frontal much 

 wider than superciliaries, much shorter than i)arietals. Loreal small, 

 as high as long; oculars, 1-3. Temporals, 1-2-3. Superior labials 

 seven, all higher than long except the first and .seventh. Inferior 

 labials nine; postgeneials larger than pregeiieials. 



Color different shades of brown, with three longitudinal light-yellow 

 stripes. The latter occupy more or less of the third and fourth rows 



