46 Bulletin American Museum of Natural History [Vol, LIII 
Fig. 69. Details of species of Dardanus. All X 1.6, 
Lateral aspect of second left ambulatory leg: A, Dardanus insignis; B, D.arrosor; C, D. pectinatus. 
Dorsal view of large (right) chela: D, D. insignis; E, D. arrosor; F, D. pectinatus. 
Dacty] of large (right) chela as seen from above: G, D. insignis; H, D. arrosor: I , D. pectinatuse 
The dactyl of the outer left ambulatory leg of D. pectinatus is about 
four and one-half times as long as its greatest depth; in typical arrosor, 
it is in excess of five and one-fourth times as long. The propodal joint 
of the same leg of D. pectinatus is a little short of being twice as long as 
