﻿62 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lOO 



from the state of Paraiba, Brazil (Klie, 1939, p. 85), a region not far 

 distant from the localities of the present collection. 



The material for this paper was collected in 1937 in northeastern 

 Brazil by Dr. Stillman Wright, of the United States Fish and Wildhfe 

 Service, and by Dr. Herm. Kleerekoper, of the University of Michigan, 

 in 1940, 1941, and 1942, in southern Brazil, in the region of Sao Paulo. 

 The report includes 22 species belonging to 9 genera, of which 12 appear 

 to be new species. The alcoholic samples containing the specimens 

 and the slides of dissected specimens from which the descriptions were 

 made have been deposited in the United States National Museum as 

 type specimens. 



Family CYPRIDAE 



Subfamily Candoninae 



Bottom forms without powers of swimming. Natatory setae of 

 second antennae poorly developed or even entirely lacking. Last 

 joint of second leg cylindrical. Furca well developed, the dorsal 

 border with one or two setae; if only one seta is present it is located 

 at a considerable distance from the base of the subterminal claw. 

 Ductus ejaculatorius with five or six whorls of radiating spines. 



Genus PHYSOCYPRIA YSvra 



Physocypria VIvra, Siisswasser-Ostracoden Deutsch-Ost-Afrikas, vol. 4, p. 7, 



1897. 

 Cypria Sharpe (part), Bull. Illinois State Lab. Nat. Hist., vol. 4, p. 459, 1898. 

 Cypria (Physocypria) Shakpe, Proc. U. S. Nat. Mus., vol. 26, p. 994, 1903. 



Valves always unequal and compressed, the margm of either right 

 or left valve more or less tuberculated. Natatory setae of the second 

 antennae well developed and extending considerably beyond the tips 

 of the terminal claws. Terminal segment of second thoracic leg 

 rather short, with two long and one short setae. 



PHYSOCYPRIA CRENULATA (Sars) 



Figure 12, o 



Cypria crenulata Sars, Arch. Naturv. Christiania, vol. 25, No. 8, p. 32, 1903. 

 Physocypria crenulata G. W. Muller, Das Tierreich, vol. 31, p. 133, 1912. 



Specific characters. — Female: Shell compressed laterally, height 

 about three-fifths the length and highest just posterior to the middle. 

 Both extremities rounded, the posterior end somewhat more broadly 

 rounded than the anterior. On the dorsal border there is a slight 

 concavity immediately over the eye. Ventral border concave. 

 Right valve crenated both anteriorly and posteriorly; crenulations 

 more extensive on posterior border. Left valve not crenulated. 

 Furca notably bent, the dorsal seta about one-third the length of the 



