42 



PROCEEDINGS OF THE NATIONAL MUSEUM 



Table 9.- — Similarities in marking and sandhathing (all components are shown by- 

 all species when fur is wet, a phenomenon not considered in the present com- 

 parison; = not noted, X = occasional, XX = typical of most sequences) 



' All species studied. 



Table 10. — Response totals for male-anestrous female encounters in a neutral arena 

 (parentheses enclose the average number of bouts per encounter) 



Species 



Number Duration of Total and average frequency of behavior pattern 



of en- encounter 



counters Grooming Uprights Chase Fight 



Peromysus maniculatus ' 

 Liomys pictus 

 Dipodomys panamintinus 

 Microdipodops pallidus 



15(.8) 4(. 2) 



85(4.0) 7(.3) 



43(2.3) 2(.l) 



19(1.3) 2(.l) 



1 Territorial encounter only, which accounts for the rather high level of chasing that occurred prior to the 

 grooming relationship. 



