VOI 

 1891 



XIV, "I 



•1. J 



PROCEEDINGS OF THE .NATIONAL MUSEUM. 



(;5i) 



Tlic coloration is a curious j)ai'alk'l ol the ^' atrata'' I'onu of the IJ. hp- 

 toccphala, whicli it closely resembles. Tlie superior labials of the latter 

 are (lifterent iu beiug lighter aud with black borders, and the throat is 

 whitish and tiie muzzle brown. 



While the E. infernalis has these i)oints of connection with certain 

 extremes of variation of the E. sirtalis, it aj^rees with none of them, and 

 may be regarded as a species until more delinite [toints of connection 

 are found. 



I'litmiia iii/ernalis cidtia Udpi-. 



I liiiruuter. 

 Alcuholic. 



Two s|iecimens in tlie U. tS. National Mnseum are the only ones liiat 

 1 have seen. Both are from San Francisco, California.* 



Hutaeuia auiata C'opu, sp. iiov. 



i'^oiin of medium robustness; head well distinguished; tail about 

 ■\-. times in total length. Scales in nineteen series, those of the in- 

 terior row as deei) as long, smooth or leel)ly keeled; the transverse 

 diameter of the scales diminishing gradually, and nowhere so small as 

 in many other species. Superior labials eight, all deeper than long. 

 Loreal deeper than long; oculars 1-^i; temi)orals l-L'-.J. Frontal wider 

 than sui)erciliaries, not reaching [)reocular, 



lirown without spots, and with three longitudinal yellow strii)es, the 

 lateral very distinct, and running on the second and third rows of scales. 

 Uelly yellow, immaculate. Labials yellow. A i)air of large black 

 mu.'hal spots. 



This s[)ecies differs from those of tlie same group with .short tad, in 

 its more robust form, and in the absence of spots au<l presence ot 

 stripes. In its large nuchal spots it resembles the E. cyrtopsis, but in 

 no other res[)ect. Its real allinities are to the E. in/enialis, but its ap- 

 pearance is very unlike this form. 



Kobust, head short, distinct. Anterior labials short, \ertieal; 

 parietal i)lates rather short and wide. Scales rather wide, liist row 

 very weakly keeleil. Gastrosteges 108, anal 1, urosteges 71. Total 

 length 840""" ; length ol tail 183"'"'. 



The color is a rich ninform brown above, with three longitudinal 

 yellow stripes which aie without black borders. Tin* dorsal stripe oc- 

 cu[)ies the u)iddle and parts of two adjacent rows of scales on the an- 

 terior half of the length, and one row on the jjosterior half, and is con- 

 tinued to the end of the tail. The lateral stripe covers twoentin* rows 



*EUT.K.N1.V I'UKNAX (.'i>i.c, I'loc. Acad. J'liila.. l~i>, p. I U. \ t-ra Cm/, .Mi>xic(>. 

 Err.i:Ni.\ sc.MicniiAsm Cope, Pioc Acjul. I'liila., lH;t;, p. :{()() : Pruc. Aim-r. Phiioa. 

 Son,, ldS4, p. 173. State of Vera Cruz, Mexico, f Guatemala. 



