III. 



NOTES ON AMERICAN OSTRACODA, WITH 

 DESCRIPTIONS OF NEW SPECIES. 



By C. H. Turner. 



[ Plates VII and VIII. ] 



This paper is a continuation of the articles pubhshed by 

 the author in this journal last year and the year before. 



I must here thank Mr. A. B. Whitby and Prof. L. D. 

 Hileland, who have kindly collected material which other- 

 wise would have been inaccessible to me. Mr. Whitby col- 

 lected in Texas while Professor Hileland collected in Delaware 

 and New York. 



Genus cvpria, Zenker. 



Cypria excidpta, Fischer. 



[ Plate VII; fig. 2-S.] 



Cypris striolata, . . . Brady: Recent British Ostracoda (1868) p. 



372—373; ?'• XXIV, fig. 6-10. 



Cypris striolata^ . . . C. L. Herrick : Alabama Crustacea. (18S7), 



p. 29; pi. IV, fig. 3. 



Cypria exculpta, . . . G. S. Brady : Marine and Fresh Water Os- 



tracoda of the N. Atlantic and N. W. Europe, Podocopa. (1889) p. 

 6S-69; pi. XI, fig. 1-4. 



Length of female, 0.54 — 0.64 mm. Height, 0.33 — 0.43 

 mm. Width, 0.26 mm. 



The shell is thin and somewhat transparent and is covered 

 with a meshwork of sub-longitudinal lines, [fig. $.] 



Viewed from the side, [fig. 3] the shell is orbicular, highest 

 in the middle, the two extremities being of about equal height. 

 The cephalic, dorsal and caudal margins are convex. The ven- 

 tral margin is slightly sinuate, being concave in the middle. 



Viewed from above the shell is an elongated, later- 



