LIGIA OCEANICA,. 4.4.7 
The male organs consist of a pair of small styliform 
processes, centrally attached to the anterior or first seg- 
ment of the pleon. ‘These are connected by slender 
ductus eaculatoru to a vas deferens, that suddenly enlarges 
and gradually diminishes to the extremity, where it 
divides into three testes, which enlarge, and gradually 
thin out with extreme delicacy. The external surface 
of the ductus ejaculatorii is marked by many small cells 
of black pigment. 
This species is common on all our coasts, running 
with agility, and folding in the extremities so as to feign 
death. It indiscriminately feeds on decaying animal and 
vegetable substances, along tide-marks and rocks. It is 
seldom found under water, and may be observed running 
over the sand in full sunshine. 
We have occasionally found them dead, yet standing 
on the rock as if they were alive and well. On exa- 
mination, we have found that the branchial plates had 
been destroyed, probably by some insect, but of this 
fact we have no direct evidence. 





Microscopical representation of the texture of the dorsal 
tegument of Ligza oceanicu. 
