or clufters of fpawn in the breeding feafon are ex¬ 
tremely confpicuous. This animalcule feems to have 
been firft diftindtly defcribed by the ingenious Mr. 
Henry Baker, who in his work entitled Employment 
for the Microfcope has given a figure fufficiently exadt 
to determine the fpecies, though not remarkable for 
its elegance. Its general color is a reddilh brown. 
