186 Sitst Annual Report 
very fine feathered hairs. Eyes and dorsal groove not apparent. 
Last joint of leg one slightly longer than penultimate joint. On the 
other legs this condition is reversed. The last joint of leg four little 
more than‘half the length of the penultimate joint. Legs thickly 
set with fine hairs which are shorter than the diameter of the legs. 
Figure 104. Rhyncolophus arenicola. Palpus and dorsal hair. 
Palpi are short, similarly clothed with short hairs; last joint is a 
short thumb opposed to the preceding joint, the claw of which reach- 
es as far beyond the thumb as the length of the thumb. Mandibles 
are stiletto-shaped and retractile. Small figures show the left palpus 
and a body hair enlarged. Quite common running over the dry sand 
of the upper beach all summer. Laguna Beach. 
