420 
FEMALE. Colour as above. 1 -irst antennae as above, but 
slender. Total length, 0-84 mm. Cephalothorax and thorax, crjc 
mm. Furca, 012 mm. Egg sacs, a violet colour, carried slightly 
apart. 
This species is frequently covered partially or entirely by ecto¬ 
parasites (algae). 
It can be readily distinguished from No. 2 by the great length of 
the furca. 
Cyclops No. 4. Cyclops virescens, sp. nov. (Brady) 
Male. Colour, cephalothorax a pale yellow-green; thorax a 
dark green. First antennae, ,0 segments; copper coloured, 
earned a sparkling spot below the eye when swimming; an air bubble 
m mouth. Total length, 0-4; mm. Cephalothorax and thorax, 
029 mm. Furca, 0-03 mm. 
Female.— Colour as above. First antennae as above, but lighter 
erm Ur ‘ T7 T ° tal length ’ 0 ' 60 mm - Cephalothorax and thorax, 
close Together 3 ' ^ 
Caught in rapid streams, and later on in year in ponds. 
Cyclops No. 5. Cyclops pheleratus, Koch 
long M a?th7 COl T; a u bnght C0pper ' F,rst antennae ' 10 segments, as 
taa a t ’ r ° nly ' T ° taI '“*h. o-6o mm, Cephalc 
colour ' 0 38 ” m ' FurCa ' °'°5 Cogs of a light blue 
length, 077 m ^° loUr as abo '' e - Flrst antennae as above. Total 
008 mm Emr Ce phalothorax and thorax, 0 46 mm. Furca. 
This sneeffs r a bnght b ‘ Ue COl ° Ur ' Carried close together. 
the ! r ter read “ y and dlmb = - sides of 
essel carrying a drop of water with it. 
C\ CLOPS No. 6. Cyclops Icuckarli , Claus 
segments, as^on^Y^ yeIlow_ S reen - first antennae. 17 
0-89 mm.' Cephalothorax and ^ 'T' 
the m-ddTe e o P f le iy Ul ““ * ^ 1 have «* foundries Wore 
