90 



BULLETII!T 114, UNITED STATES NATIONAL MUSEUM. 



the common suture. There is a large white dot on each temporal of 

 the first two rows and often on some of the temporals of the third 

 rows. The light spots on the dorsal scales close behind the parietals 

 are more extensively developed than is usual with hoylii or yumensis. 

 The anterior headplates have large light marks, as in hoylii, and 

 the mutual borders of the labials are dark; like this form, too, the 

 subocular dark spot is well developed. vSince the young specimens, 

 as well as the adults, show these head markings, they may thus be 



Fio. 21.— Color pattern op Lampropeltis getultts conjuncta (U.S.N.M. no. 5288, onb ot thb 



coTYPEs). About IJ x nat. size. 



usually distinguished from the young of loylii and yumensis, and the 

 presence of 10 infralabials would bo confirmatory. 



The dentition is as follows: Maxillaries, 12 to 15, usually 13 or 

 14, subequal, the last two barely stouter than the preceding; man- 

 dibular, 14 to 16, usually 14, longer in front, decreasing in size pos- 

 teriorly; palatines, 8 to 11, usually 9, larger than the pterygoids; 

 latter 15 to 18, diminishing in size posteriorly. 



The copulatory organ seems to be essentially like that of hoylii. 

 Minute spines are present only as traces just below the large ones; 

 the fringes are very short, and perhaps slightly more numerous than 

 in hoylii. 



