BY INFERIOR ORGANISMS. eo 
mon glowworm. Oceana hemispherica, another 
minute creature described by the same naturalist, 
appears ‘ enveloped with a shining crown.” 
At the present day it appears doubtless that 
certain small crustaceans are occasionally phos- 
phorescent; especially the species Cancer fulgens 
already mentioned, and Cyclops quadricornis, 
Many mollusks have also been seen to shine at 
night, especially certain Pholades which bore into 
ships, etc., and, according to some authors, cer- 
tain terrestrial species. Concerning these mol- 
lusks, it 1s well known that they shine intensely 
after death ; but do they shine when alive? I have 
not been able to solve this query. The other ani- 
mals alluded to have been frequently seen, and 
many of them by myself,in a shining condition 
during life. 
Big, 19; 
The different species of Cephalopoda which live 
near the shore, and some Pteropoda, have been seen 
to be self-luminous. he same may be said of the 
curious organisms called Biphores, Dyphises, Phy- 
