﻿FRESH-WATER OSTRACODA FROM BRAZIL TRESSLER 79 



inner margins of third divided segment heavily developed. Second 

 leg with a curved, denticulated beak and a heavy, rather short 

 reflexed seta. Spine on second joint heavily developed and haired. 

 Furca very long and narrow. Terminal claws unusually short and 

 equal to no more than one-fourth the length of the ramus. Terminal 

 seta about seven-tenths the length of the terminal claw. Both claws 

 heavily armed with coarse teeth. Dorsal seta somewhat longer 

 than in S. itapeva and unhaired. On the dorsal margin are five 

 groups of subequal hairs. Length 1.40 mm.; height 0.75 mm. 



Male: Unknowoi. 



Holotype.—V.S.NM. No. 83028. 



Type locality. — One specimen was taken by Dr. Kleerekoper in 

 temporary pools on grassland near Porto Alegre (January). 



STRANDESIA PEDROENSIS, new species 



Figure 14, jy-r, x 



Specific characters. — Female: Height less than half the length and 

 highest in posterior third of shell. Dorsal margin relatively flat with 

 only a trace of convexity. Indentation in ocular region. Anterior 

 extremity broadly rounded ; posterior extremity sloping ventrally and 

 produced in a blunt postero ventral projection. Ventral margin 

 slightly concave. Valves smooth and very sparsely haired. Second 

 antennae similar to those of S. ovalis. First leg with a short, stubby 

 terminal claw. Next-to-last segment clearly divided. Bristles on 

 inner margin well developed but not haired. Second leg mth a 

 heavy, slightly bent terminal beak, haired on its distal third. Furca 

 rather short and heavily armed both on their dorsal margins and on 

 the terminal claws. Dorsal seta located almost immediately at base 

 of subterminal claw and separated from it by less than the width of 

 the seta. Terminal seta four-fifths the length of the tenninal claw. 

 Both claws heavily armed throughout the greater part of their length. 

 Length 1.33 mm.; height 0.56 mm. 



Male: Unknown. 



Holotype.— V.S.N. M. No. 83008. 



Type locality. — Sao Pedro, South Ceara. Eleven specimens were 

 collected by Dr. Wright in the Acude Umary, Sao Pedro, South 

 Ceard (August). 



Remarks. — This species may be recognized easily by the shape of the 



shell and by the configuration of the f ureal rami, particularly the 



position of the dorsal seta in relation to the base of the subterminal 



claw. 



Genus CYPRICERCUS Sars 



Cypricercus Sars, Skrift. Vid. Christiania, 1895, No. 8, p. 37, 1896. 

 Neocypris Sars, Arch. Naturv, Christiania, vol. 24, No. 1, p. 29, 1901. 



