^°]K-u" J PROCEEDINGS OF THE NATIONAL MUSEUM. 651 



This is tlic species of the phiins, ami it is well (listiii*;uishe(l from 

 all others. It ranges from Dallas, in northern Texas, on the sontli. to 

 Manitoba on the north, and from the base of the Kocky ^Mountains on 

 the west to the eastern limit of the prairies in Indiana on the east. It 

 varies in color somewhat, bnt not snlMciently to give gronnd for the 

 adoption of subspecies. The fact that of the very many specimens 

 ■which are preserved in museums, the type is the only one which has 

 nineteen rows of scales, has given rise to the synonyms above ciiiini- 

 erated. Southern specimens {E. r. haydenii) are more brightly colored 

 and more distinctly spotted than northern ones; in fact some of 

 the latter are nearly black; hence the name E. r. tinniiu/H ; but 

 these agree with the type exactly, except in having twenty-one rows 

 of scales. In the E. v. melanota'uia from Indiana there is an imper- 

 fect longitudinal stripe crossing the end of the gastrosteges; but it is 

 much interrupted. 



Eiitaenia macrostemma Kenn. 



Pnic. Acad. Phila., 1860, p. 331. Eut(vma JlavilahrxH Cope, Proc. Acad. Pliil.i., l.s'.r), y. 

 30G; Euimiia ivKigiiiarnm Cope, Proc. Auier. Pbilos. Soc, 1884, p. lT\i. 



This is the representative of the iiJ. radix \u Mexico, but it always 

 ditfers in having eight superior labials and a shorter tail, it has three 

 forms. In one the longitudinal stripes and spots are obscure or want- 

 ing and the size is larger. This is the E. insiflniarum Cope. In 

 another, ail the markings are very distinct, the lighter ones being a 

 bright yellow; the size is smaller. This is the E. flavilabrh Cope. It 

 comes from various i)arts of Mexico. The type specimen of thesjjecies 

 is intermediate between the two in color, and the size is like that of 

 the E. inNu/niaritm. It is from the valley of INIexico. Tiiree speci- 

 mens of the torm /».9i<7?j/VT>wr»? were sent to the zo(>logicaI garden at 

 Philadelphia, which are said to have been taken near Prescott, Ariz. 

 One of them has an additional superior labial intercalated in front of 



the orbit. 



Euteenia butlerii Cope.* 



Proc. V. S. Niit. Mns., ISf^S, p. ;V.)9. 



Southeastern Indiana. One specimen known. 



Eutaenia biscutata Copf. 

 Proc. Acad. Phila., l^s;!. p. -Jl. 



Lake Klamath, Oregon. Two s])ecinn'iis known. 



Eutaenia elegana Hd. and Oird. 



Cat. Kept. N. Aiiier., Pt. i, Scrpent.s. 18r>3. p. 34. 



Euia-nia va{iia)us Hd. and tiird., 1. c, p. 3,"i. 



Kuid'iiia marciaua Bd. and Gird. 1. e., p. 3((. 



Eutania courhii Kenn., Kept. II. S. Pac. R. R. Surv.; Williamson's Rept.. \. l-.'iT, y. 10. 



Euiiinia hamtnoiKlii Kenn., Proc. Acad. Phila., isiiO, p. 332. 



Tropidonotus iriviilatus Hallow., Proc. Acad. Phila., 1853, p. 257. 



"Euta'nitt rutiloris Cope, Proc. Am. Philos. Soc, lf*A'», p. 3H8. Cozumil Id.. Yuca- 

 tan. 



