158 Trans. Acad. Sci. of St. Louis. 
10. cycLops sianatus Koch, var. renvuicornis Claus. 
Cyclops signatus, var. tenuicornis, Herrick & Turner, ’95, pp. 106, 
107; pl. XV., fig. 5-7; pl. XX., fig. 1-7; pl. XXXIII:, fig. 1, 2. 
Cyclops albidus, E. B. Forbes, ’97, pp. 47-49; pi. XIII. : 
This form is common about Augusta. I found it in 
marshes, in no-outlet ponds containing much vegetation, 
and in lagoons that were almost free from aquatic vege- 
tation; when the temperature of the water ranged from 
6° C. to 15° C. On no occasion did I find this variety 
associated with the variety coronatus. 
11. cycLuops ater Herrick. 
Cyclops ater, Herrick & Turner, ’95, pp. 89-90; pl. VI., fig. 11, 12; 
pl. XII., fig. 9-12; XXI., fig. 13-15, 17, 18. 
Cyclops ater, E. B. Forbes, ’97, pp. 49-51; pl. XIV., and pl. XV., 
fig. 1-3. 
This form was found in the temporary portion of a 
no-outlet pond, in temporary ponds, and in a pond fed 
by the overflow from a large creek. The temperature 
of the water ranged from 4° C. to 17° C. The color of 
the thorax varied from dark blue to almost black. 
12. CYCLOPS SERRULATUS Fischer. 
Cyclops serrulatus, Herrick & Turner, ’95, pp. 111-112; pl. XV.; 
fig. 8-11; pl. XIX., fig. 2-5; pl. XXVI., fig. 10; pl. XXIX., fig. 
17-19. 
Cyclops serrulatus, E. B. Forbes, ’97, pp. 54-57; pl. XVII., pl. 
XVIIL., fig. 1-3. 
This is the commonest copepod about Augusta. It 
abounds in temporary ponds, ditches and permanent 
ponds of both types. It is found among vegetation and 
where the aquatic vegetation is practically absent. The 
temperature of the water in which it was found varied 
from 4° C. to 28.5° C. 
In addition to the Entomostraca mentioned in the table, 
associated with it were gammarids, hydrachnids, may- 
fly larvae, diving beetles, larvae of Diptera, planarians, 
rotifers, snails, water-boatmen, Hydra. 
