798 Wisconsin Academy of Sciences, Arts, and Letters. 
male then cautiously approached and stood motionless close to 
the female with upraised chela for three and a half minutes, 
and again attempted to push her down but without success. He 
then raised his claw and standing high on his legs assumed a 
statuesque pose which he held for ten minutes (I took his pic¬ 
ture, fig. 6). The female meanwhile fed a little and moved 
away a couple of inches, then w T ent part way down the hole. 
When the male again approached she dodged, hut came hack 
again, went into the hole and the male stood over her for more 
than a minute. She dodged away, again came hack, and the 
male stood over her again. At ,1'2 :42 he went to one side of 
Fig. 6. Uca pugilator. Male in courting attitude before a female. 
Drawn from a photograph taken at West Falmouth, July 11, 1912. 
the burrow, she to the other, and they stood thus for four min¬ 
utes. At 12 :46 the female moved away an inch at 12:52 the 
male dodged quickly into his burrow, and the female hastened 
up to him,—but a minute later she moved away several feet and 
went elsewhere. The male, however, was soon consoled, for at 
1:02 he was standing at the mouth of his hole waving frantic¬ 
ally at a new suitor. At 1:07 he carried a plug to his doorway 
and shut himself in. 
I believe the activities just described were a courtship. The 
male made no attempt to use his great chela in an offensive way, 
.as he would have done if a male or an unwelcome female had 
entered his hole. After his first rush he had every appearance 
of proceeding with great caution—as if he feared a too arduous 
wooing might cause his prospective mate to leave. After every 
