HARRIS : CRAYFISHES GENUS CAMBARUS. 139 



6. ST. LAWRENCE RIVER. 



C. bartonii. C, ?1; 31, 2,5. 

 C. bartonii robustus. 31, 4, 5, 8. 

 C. propinquus. C, 1; 31, 2, 3, 4, 5. 

 C. virilis. C, ?5. 



7. Richelieu River. 



8. Lake Chamj^laiti. 



C. bartonii. 31, 1; 44, 1. 



9. Lake George. 



C. virilia. 31, ?1. 



10. Lake Ontario. 



C. argillicola. C, 1. 

 C. bartonii robustus. C, 1, 2; 31, 3. 

 C. propinquus. C, 2; 31, 6, 7, 8, 11, 

 C. virilis. C, 4. 



11. Oneida Lake. 



C. bartonii. 31, 10. 



C. bartonii robustus. 31, 7. 



C. immunis. 31, 1, 



C. propinquus, 31, 9. 



12. Cayuga Lake. 



C. bartonii. 31, 11. 

 C. propinquus. 31, 10. 



13. Genesee River. 



C. bartonii. 31, 13. 



C. bartonii robustus. 31, 2. 



C. obscurus. 31, 2. 



14. Niagara River. 



0. affinis. 31, 1. 

 C. bartonii. 31, 14. 

 C propinquus. 31, 1. 



15. Lake Erie. 



C. affinis. (?). 



C. argillicola. 34, 1, 2. 



C. bartonii. 31, 15. 



C bartonii robustus. 31, 1. 



C blandingii acutus. 34, 1. 



C. immunis. 34, 1, 2. 



C propinquus. 31, 12; 34, 1. 



C. propinquus saubornii. 34, 1. 



C rusticus. 34, 1. 



16. Sandusky River. 



C. rusticus. 34, 8, 9. 



17. Maumee River. 



C. rusticus. 34, 5, 6, 7. 



18. Huron River. 



C. propinquus. 21, 4. 



19. Detroit River. 



C immunis. 21, 1. 



C. propinquus.' 21, 2, 3, 



