514 BULLETIN 54, UNITED STATES NATIONAL MUSEUM. 



is not much developed; the dactylus has the form of a little, short 

 claw, not reaching the end of the palmary margin of the preceding 

 article. 



The abdomen, in the median part, is very short and very slender; 

 its entire size comes from the extraordinary development of its 



FIG. 561. GRAPSICEPON EDWARDSI (AFTER BONNIER), a, VENTRAL VIEW OF FEMALE. 6, ABDOMEN 

 OF MALE (VENTRAL VIEW), c, VENTRAL VIEW OF HEAD OF FEMALE (FIRST RIGHT INCUBATORY 



LAMELLA REMOVED), d, DORSAL VIEW OF FEMALE, e, HEAD OF MALE (VENTRAL SIDE). /, VEN- 

 TRAL VIEW OF MALE, g, SEVENTH THORACIC SEGMENT OF MALE (VENTRAL SIDE), h, FIRST LEG 

 WITH INCUBATORY LAMELLA, i, THE SAME (INNER FACE). 



pleural prolongations and of their appendages. The first form long 

 lamellae which rise parallel toward the anterior part of the body and 



