2 Psyche [March-June 
When first noticed only 4 mm of the young was visible but 
by 15 minutes later, 16 mm or more than half of its length had 
emerged. Another 15 minutes sufficed for the young to com- 
pletely free itself so that the entire process must have required 
little more than half an hour. During this time the female held 
TABLE 1 
8:45 a.m 
4 mm. free 
9:00 
16 | 
9:05 
20 “ 
9:10 
24 “ 
9:15 
Completely free 
9:17 
White mass extruded 
9:45 
Mass consumed by young 
the posterior part of her body (that portion bearing the last 5 
pairs of legs) raised at an angle of about 60°. She made no move- 
ments and no contraction or peristaltic action could be seen. 
The young on the other hand made active efforts to free itself 
and apparently maintained a constant tension. The portion 
of its body which had just emerged (6 mm) was very pale, 
almost white, and was separated from the rest of the body by 
a dark band (2 mm). These bands presumably represented ex- 
tended and contracted regions respectively. The young was 
closely followed by a drop of white, cloudy, viscous liquid 1.5 to 
2.0 mm in diameter. Manton ( loc . cit.) states that in Peripa- 
toides the cast egg membrane, the peritrophic membrane and 
the cast integument are evacuated after birth but no structure 
could be seen in this material. The mass was completely eaten 
by the young in half an hour. After parturition the mother 
showed no interest in the young even casually walking over it. 
However, neither did she attempt to harm or consume the 
young, either at this time or on succeeding days although she 
had been without food for the better part of a month. 
With a length of half that of the mother the young appear 
large but their combined weight was less than 15 per cent of 
hers. In contrast to the adult which was uniformly colored a 
rich red-brown, the young showed a lighter red-violet-brown 
with pinker head, legs and underside. This difference in color 
appears to be characteristic in peripatus. 
