NEWLY-HATCHED CRAYFISHES. 41 



That most careful naturalist, Roesel von Rosenhof, 

 says of the young, when just hatched : — 



''At this time they are quite transparent; and when 



Fig. 8. — Astacns JluviatUis . — A, two recently hatched crayfish attached 

 to one of the swimmerets of the mother ( x 4). p?', protopodite ; 

 en, endopodite ; and ex, exopodite of the swimmeret ; ec, ruptured 

 egg--cases. B, chela of a recently hatched crayfish ( x 10). 



such a crayfish [a female with young] is brought to 

 table, it looks quite disgusting to those who do not know 



