232 



BULLETIN U4, UNITED STATES NATIONAL MUSEUM. 



are from J to 2J, usuall}^ 1 to 2, scales in width, not wider on the 

 sides, and usually more or less obstructed on the belly with black. 

 The head is black from about the anterior portion of the frontal 

 to the posterior part of the parietais and laterally to the eyes or 

 middle upper labials. The whole snout is whitish, and there is some- 

 times a hght spot above each eye; the chin and gular region is white 

 and quite or nearly immaculate. A white band crosses the tips of 



AO 



A D 



N 





A 



4-0 



3S 



30 



Z5^ 



J IS 



no 



fas 



Fig. 62.— Map sho^ving locality recoeds for Lampropeltis pyrrhomelaena. 



the parietais, widening anteriorly on the sides; behind this is a black 

 band, which narrows on the sides and is rarely, if ever, complete on 

 the throat. 



The dentition is as follows: Maxillary teeth, 13 to 20, commonly 

 14 to 16, somewhat longer anteriorly, the last two a little stouter and 

 more flattened laterally; mandibular teeth, 14 to 18, second to sixth 

 largest, becoming much smaller posteriorly; palatine teeth, 11, less 



