540 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.49. 



central and western parts of South America are better known. No 

 amphipods were found, although a careful search was made in every 

 locality visited. No Entomostraca were found at the Cincinnati 

 Coffee Plantation. This was doubtless due to the fact that there 

 was very little swampy land or standing water. 



LIST OF SPECIES. 



COPEPODA. 



DIAPTOMUS MARSHI Juday. 



Quite conmion in a Birge-net collection from some pools at the 

 edge of a marsh at Fundacion, August 15. Previously recorded from 

 Guatemala and Panama (Marsh, '13). 



ACARTIA TONSA Dana. 



Collected at surface of Cienaga Grande p,t Tasajera Isla in a tow 

 net at 9 o'clock in the evening on August 22. Previous records from 

 Australia, South Pacific, and Massachusetts. 



CYCLOPS LEUCKARTI Claus, var. EDAX Forbes. 



A common species on the lowlands. Collected in Birge-net as 

 follows: Artificial pond, Fundacion, August 9, 11; pools along rail- 

 road, Fundacion, August 11; swamp. La Rosa, July 31; pools along 

 railroad, Santa Marta, August 29; pool covered with duckweed in 

 bed of Gaira River, Gaira, August 27; marsh, Gaira, August 27. 



Cosmopolitan. 



CLADOCERA. 



MOINODAPHNIA MACLEAYU Bars. 



In swamps, at Fundacion, August 11, and at Gaira, August 27. 

 Previously reported from Louisiana. 



EURYALONA OCCIDENTALIS Sars. 



In pools at edge of swamp, Fundacion, August 15. Previously 

 reported from Florida, Texas, and Arkansas. 



ALONELLA KARUA (King). 



In pools at edge of marsh, Fundacion, August 15. Previously 

 reported from Louisiana, Texas, and Arkansas. 



MOINA BRACHIATA Jurlne. 



Abundant in an artificial pool, Fundacion, August 9. Previously 

 reported from Wisconsin, Nebraska, and Missouri. 



MACROTHRIX LATICORNIS (Jurine). 



In the marsh at Fundacion, August 11, and in pools along the 

 railroad at Santa Marta, August 29. CosmopoUtan. 



