400 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxv. 



Revised summary of species of OstracoQa of the National Museum. 



1. Family Cypbidio^:. 



(a) Subfamily Candoninse. 



1. Genus Candona. 



1. C. parallela G. W. Miiller, Colorado; May. 



2. Genus Paracandona. 



2. /'. euplecteVa (Brady and Norman I. Now Jersey: .March. 



(b) Subfamily Cypridinae. 



',). Genus Gypris. 



3. C. fuscata (Jurine), common in United States and Mexico; 



spring. 



4. G. pellucida Sharpe, Illinois, Idaho, Mexico. 

 r>. ('. pubera Jurine, Oregon. 



6. C. reticulata Zaddach, Illinois, Massachusetts, New York 



(Catskill Mountains), New Jersey. 



7. G. virens Jurine, Massachusetts, Ohio. Mexico. 



8. G. incongruens (Ramdohr), Florida, Ohio, Pennsylvania. 



4. Genus Spirocypris. 



!>. S. passaica Sharpe. Massachusetts. New Jersey. 



10. S. tuberculata Sharpe, Indiana. Illinois; May. 



(c) Subfamily Cypridopsinae. 



5. Genus Cypridopsis. * 



11. G. vidua, common everywhere. 



6. Genus Potamocypris. 



12. /'. smaragdina Vavra, Illinois, Mexico. 

 (r/) Subfamily Cyclocypridinse. 



7. Genus Cyclocypris. 



13. G. Iwvis (O. F. Miiller), Delaware, Indiana. Illinois. New 



Jersey, New York (Catskill Mountains!. 



8. Genus Cypria. 



14. G. dentifera Sharpe, Illinois, Ohio, New York. New Jersey. 



15. C. exsculpia Fischer, common everywhere. 



9. Genus Ilyocypris. 



Ki. /. gibba (Ramdohr), Colorado; March. 



17. /. bradyi G. O. Sars, Colorado; March. 

 (c) Subfamily Herpetocypridina?. 



10. Genus Chlamydotheca. 



18. C. azteka Saussure, Texas; October. 



19. G. mexicana Sharpe, .Mexico; September. 



11. Genus Herpetocypris. 



20. II. reptans Baird, California; September. 



12. Genus Ilyodromus. 



21. /. pectinatus Sharpe, stomach of spatula clypeata Linnaeus, 



South Carolina. Europe? (Jeffreys collection). 

 (/) Subfamily Notodromadinaj. 



13. Genus Gyprois. 



L'2. G. marginata (Strauss), Jackson Park, Chicago; May. 

 1 1. Genus Notodromas. 



23. X. monacha (O. F. Mfiller-), Indiana. Minnesota; May. 

 -. Family < 'vtiikuid.e. 



ir>. Genus Cythere. 



24. C. americana Sharpe. brackish pools, Long Island; June. 



25. ('. papillosa Sharpe, brackish pools, Long Island: June. 





