26 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL, XXXIV. 
The incubatory plates are much smaller than in the adult, and the 
marsupial pouch: greatly reduced in size. The pouch is never filled 
with eggs at this stage. (See fig. 4.) 
Fig. 5.—LEIDYA DIS- 
th 
TORTA, MALE.@ X 238, 
Description of male-——Body narrow, elongate. 
Color yellow. (See fig. 5.) 
Head but little wider than long; frontal margin 
straight, with antero-lateral angles rounded. Pos- 
terior portion somewhat wider than anterior. Eyes 
wanting. Tirst pair of antenne composed of three 
joimts, second pair composed of seven, the last two 
being minute and tipped with hairs. 
The seven thoracic segments are separated from 
each other by lateral incisions, so that the lateral 
margins are not continuous. There are seven pairs 
of prehensile legs. 
The six abdominal segments are perfectly dis- 
tinct, are separated from each other by lateral 
incisions, and decrease gradually in width from 
the first to the sixth, which carries a pair of 
elongated, tapering appendages, the uropoda. The pleopoda are 
rudimentary. 
“Some allowance must be made for Leidy’s figures, which are somewhat 
diagrammatic. 
