Pomona College, Claremont, California 



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8. Cinetochiliim 3, 4, 14. 



9. Cotluirnia 14. 



10. Paramoecium 1, 2, 3, 6, S, 15. 



11. Pleuronema 2, 7, S. 



12. Stylonychia (long) 2, 3, 7, 8, 



12. 



13. Stylonychia (oval S, 15. 



14. Oxytricha 5, S, 10. 



15. Chilodon 1, 3. 



16. Chaenia 1, 2, 3, 6, 8, 11. 



17. Atractonema I. 

 IS. Ophryglena 1. 



19. Frontonia 1. 



20. Glaucoma 2. 



21. Condylostoma 3. 



22. Coleps 3, S, 15. 



23. Colpoda 8, 12. 



24. Metopus 8. 



25. Halteria 7. 



26. Spirostomium 6. 



27. Blepharisma 15. 



28. Opercularia 15. 



III. Rotifera 



1. Pleiirotioclia 8. 



2. Philodina 6, 8. 



3. Gastropus 1. 



4. Diplax 3. 



5. Diplois 1, 13, 14, 15. 



6. Brancliionus 5, 13, 14, 15. 



7. Rattulus 14. 



8. Floscularia 14. 



9. Diascliiza 13, 15. 

 10. Melicerta 15. 



IV. Gastrotriclia 



1. Chaelonotus 

 V. Crustacea 



A. Ostracoda 



1. Cypris 7, 9. 



2. Herpetocypris 11. 



B. Cladocera 



1. Alonella 11. 



(Contribution from the Zoological Laboratory of Pomona College.) 



