ElGENMANN : EXIM-.DITION TO Cf.NTRAI, SoUTII AMERICA. 301 



iS. jamuiria, Rio Sao Francisco. 



Cull. Xos. 249-273. On sandy shores of an island in frnnt of 



town. DcT. 12, i<)()7. 



Coll. Xo. 399. Dec. 18, 1907. 



19. Cachoeira de Pirapora, Rio Sao Francisco. 



Coll. Nos. 155-249. In the river at and below the fall, a creek 

 which enters the fall, a lagoon one and one-half miles below 

 the fall. Dec. 15, 1907. 



20. Lagoa de Joao Pereira, Barra, Rio Sao Francisco. 



Coll. Nos. 274-360. One of a series of five lakes, at times 

 connected with the Rio Sao Francisco, at times dry. 



Dec. 23, 1907. 



21. Lagoa de Porto, near Barra, Rio Sao Francisco. 



Coll. Xos. 362-398. One of a series of five lakes. 



Dec. 24, 1907. 



22. Lagoa Barreiras, Rio Srio Francisco. 



Coll. Nos. 400-440. A w^eed-grown, muddy pond, with swampy 

 margins, near the village Barreiras. Jan. 4, 1908. 



23. Boqueirao, Rio Grande of Rio Sao Francisco basin. 



No numbers. Rio Grande and swampy grass-grown ponds; 

 water clear. Jan. 6-9, 1908. 



24. Lagoa Parnagua or Paranagua, Paranahyba basin. 



Coll. Nos. 441-450. West side, in plant-grown, muddy, 

 swampy, sandy, and pebbly shores. Jan. 16, 1908. 



25. Santa Rita de Rio Preto, into Rio Grande, into Rio Sao Francisco. 



Coll. Nos. 451-484. In the Rio Preto and tributaries. 



Jan. 24, 1908. 



26. Rio Preto, ten miles below fork of Rio Sapao. Jan. 27, 1908. 



27. Cachoeira da Velha, Rio Novo, into Rio Somno, into Tocantins. 



No numbers. Above and below fall. Swift current, clear 

 water, rocky or sandy; in places grass-grown. Feb. 4, 1908. 



28. Strome, Rio Somno. Headwaters. 



No numbers. Headwaters, creeks, swampy "brejos." 



Feb. 6, 1908. 



29. Rio Sapao, into Rio Preto, into Rio Sao Francisco. Near 



Prazeres. 

 Xo numbers. Feb. 11, 1908. 



30. Rio Preto, into Rio Grande, into Rio Sao Francisco. 



Coll. No. 486. Formosa. Feb. 15, 1908, 



