2 University of Michigan 



the preparation of the revision of the genus, which is now nearly 

 completed. 



In naming one of the new forms for Professor Alexander G. 

 Ruthven, Director of the Museum of Zoology of the University of 

 Michigan, the writer wishes to express his deep appreciation for 

 three years of constant advice and encouragement. 



Lampropeltis elapsoides virginiana, new subspecies 



Diagnosis: Similar in scutellation and proportions to L. elap- 

 soides elapsoides (Holbrook), but the red areas instead of com- 

 pletely encircling the body are restricted to black-bordered dorsal 

 saddles which extend upon the ends of the ventral plates. 



Range: Northern North Carolina and Virginia, east of the 

 Allegheny Mountains. 



Type Specimen: United States National Museum No. 21 163; 

 Raleigh, North Carolina, June 16, 1893. 



Description of Type Specimen: Ventral plates, 183; anal single 

 and entire; caudal s, 44 pairs; dorsal scale rows, 19 on middle of 

 body, 17 anteriorly and posteriorly (formula 1 9-1 7-1 9- 17); upper 

 labials, 7; lower labials, 7 on the right side and 8 on the left; i 

 preocular, 2 postoculars; i temporal of the first row and 2 of the 

 second; no loreal plates, the prefrontal in contact with the second 

 upper labial on each side; nasal divided; anterior chin shields in 

 contact with each other, the posterior nearly as large, in contact 

 with each other anteriorly, diverging somewhat posteriorly; 

 rostral protruding, as in L. elapsoides elapsoides; other head 

 shields normal for the genus. 



Total length, 473 mm.; tail length, 73 mm.; tail therefore 

 about 13 per cent of total length. Sex, male. 



The dentition is as follows: maxillary teeth, 13 on each side; 

 mandibular teeth, 14 on the left side, 15 on the right; palatine 

 teeth, 10 on the left side; pterygoid teeth, 22 on the left and 19 

 on the right. 



