406 



PROCEEDINGS OF THE NATIONAL MUSEUM 



CONIOPHANES IMPERIALIS COPEI Hartweg and Oliver 



Twenty-one specimens were collected (Nos. 109786-99, 109800-3; 

 HMS Nos. 12628, 12829-30), all in the vicinity of Tehuantepec, 

 Oaxaca. 



The supralabials are 8-8 in all; infralabials 10-10 in two, 9-10 in 

 two, 9-9 in 17 ; there are two preoculars on both sides in one, on one 

 side in another. Variation in ventral and caudal counts is shown in 

 the accompanying table. 



Table 5. — Variation in Coniophanes imperialis copei 



No. 



HMS No. 12628 



U.S.N. M. No. 109786 

 U.S.N. M. No. 109788 

 U.S.N.M. No. 109794 

 U.S.N. M. No. 109796 



I! MS No. 12829 



HMS No. 12830 



U.S.N.M. No. 109787 

 U.S.N.M. No. 109789 

 U.S.N.M. No. 109790 

 U.S.N.M. No. 109791 

 U.S.N.M. No. 109792 

 U.S.N.M. No. 109795 

 U.S.N.M. No. 109797 

 U.S.N.M. No. 109798 

 U.S.N.M. No. 109799 

 U.S.N.M. No. 109S00 

 U.S.N.M. No. 109801 

 U.S.N.M. No. 109802 

 U.S.N.M. No. 109803 

 U.S.N.M. No. 109793 



Sex 



9 

 9 

 9 

 9 

 9 

 & 

 <? 



cT 



<? 



C? 



d" 

 d 1 

 cf 

 o* 

 c? 

 <? 

 <? 



Scale rows Ventrals Caudate 



19-15 

 19-17 

 19-17 

 19-15 

 19-15 

 19-16 

 19-17 

 19-15 

 19-16 

 19-17 

 19-15 

 19-15 

 19-17 

 19-15 

 19-15 

 19-17 

 19-15 

 19-16 

 19-17 

 19-15 

 19-15 



136 

 137 

 133 

 135 

 136 

 130 

 134 

 129 

 132 

 132 

 132 

 131 

 131 

 133 

 127 

 127 

 130 

 134 

 136 

 130 

 131 



69 + ? 



70 



72 



68 



67 + ? 



74 



76 



80 



75 



76 



70 

 74 

 74 

 82 

 69 

 70 

 74 



The dorsolateral stripes are separate from the white, lateral nuchal 

 spots in all ; the sides of the body are much lighter on the outer scale 

 rows (first and second) than on the third and fourth scale rows, both 

 anteriorly and posteriorly. The width of the median stripe varies, 

 but in all it is about one scale width anteriorly, less in the middle and 

 posterior parts of the body. 



The difference between the character of the lateral stripes in copei 

 and clavatus is most apparent on the posterior part of the body, for 

 anteriorly clavatus as well as copei has the lower half of the stripe 

 much lighter than the upper half. Posteriorly the stripe is uniform 

 black (or dark brown) in clavatus. 



