44 



PROCEEDINGS OF THE NATIONAL MUSEUM 



Table 13. — Behavioral changes exhibited by the male Dipodomys panamintus 

 through eslrus in male-female encounters (NN=Naso-nasal, NA=Naso-anal, 

 H/H=Head over head under, NAm= Mutual naso-anal, Cu= Crawling under, 

 Gr== Grooming, Dr= Driving, Mnt= Mounting, Thr== Mounts with tlirusting, 

 Ch= Chase and attack leaps, ri= Fight, Fl=Flight and escape leaps, Up = 

 Upright, SB = Sandbathing, DK= Digging and kick back, W= Washing 

 (exclusive of postcopulatory wash), M = Marking, Si= Sitting, Ex= Exploring) 



' Date of estrus. 



2 Grooming during head over head under and mount. 



' Ten seconds or less in duration was counted as one bout (see Methods). 



