U. S. NATIONAL MUSEUM 



PROCEEDINGS. VOL. 91 PLATE 27 



A, Aegla odebrechtii; B, A. o. paidensis; C, A. papudo; D, //. humahuaca; 

 E, A. neuquensis; F, A. affinis (the ambulatory leg shown is the inadvert- 

 ently reversed left leg of text fig. 58). 



