C >Up. IX. 
CRUSTACEANS. 
333 
^hen several males of a Brazilian Gelasimus, a species 
j^rnished with immense pincers, were placed together 
| J y Fritz Muller in a glass vessel, they mutilated and 
billed each other. Mr. Bate put a large male Carcinus 
P\ 
e * 7 - Orchestia Darwinll (from Fritz Mttller), showing the differently-constructed 
cliche of the two mule forms. 
n,bn a& into a pan of water, inhabited by a female paired 
j V hh a smaller male ; the latter was soon dispossessed, 
Ut> as Mr. Bate adds, “ if they fought, the victory 
