202 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



A large berried shrimp carries about 5,000 eggs. 



Examination of the eggs under the microscope. Also the 

 berries will be hatched in the tanks and the newly -hatched 

 little shrimps examined. 



The Lobster breeds in just the same way as the 

 shrimp, except that it spawns only once in the year. 



Male and female lobster. 



The C r a b. — The stomach, liver, ovaries and 

 testes. 



Three stages in the growth of the Crab. (All magnified) . 



The "Casting" of the Cra b.— The shell of 

 the crab is " cast," or thrown off, many times during the 

 first year of its life. Afterwards it casts its shell about 

 once in each year. Growth only takes place while the 

 crab is " soft," and before it grows a fresh shell. 



