1298 General Notes, | [December, 
dages, are a sure distinguishing character of the sexes, even in — 
A 
B 
9 
ô 
{ 
Fic. 1.—A, female, and B corresponding male claw of Limulus. 
the very youngest. (Fig. 2 A represents those of the female, and : 
( 
B those of the male, both natural size. 
Fic. 2,—First Abdominal feet of male and female Limulus. 
As here represented the openings of the beer er? 
are transverse slits (Fig. 2 7), while the genital Open’ 
les 
kept, seventeen were males and eighteen were females, 
of foe possessed the modified claw of Fig. ! as there 
essential difference in the hand and opposable thu 
and female. i 
These facts show that the male Limulus, while young, 
sessing this character was found. 
that large Limuli rarely, possibly never, shed, beca 
those examined, there were no large ¢xuvia. 
n the female 
