300 Annals of the Carnegie Museum. 



5. Rio Zinga, small creek into headwaters of Itapicuru. 



Coll. Nos. 6, 25 to 29. Nov. 7, 1907. 



6. Rio Itapicuru Grande, headwater of Rio Itapicuru. 



Coll. No. 38. Swift and rocky mountain stream near Jacob- 

 ina. Nov. 8, 1907. 



7. Rio Paiaia, into headwaters of Itapicuru. 



Coll. Nos. 20-24. Small, rocky, rapid stream from Serra 

 Jacobina between Bom Fim and Jacobina. Nov. 8, 1907. 



8. Rio de Jacobina, into Rio Itapicuru. 



Coll. Nos. 33-37. Quiet, muddy stream, with plant-grown, 

 swampy margins, some boulders; within sight of the moun- 

 tains. Nov, 8, 1907. 



9. Lagoa Salgado, Rio Salitre, into Rio Sao Francisco. 



Coll. Nos. 30-32. Saline lake with muddy margin in upper 



course of Rio Salitre. Nov. 10, 1907. 



ID. Bom Fim, Rio Amaratu, into Rio Itapicuru. Nov. 11, 1907. 



11. Sao Thome, Rio Salitre, into Rio Sao Francisco. 



Coll. Nos. 3, 4. Nov. 12, 1907. 



12. Rio Salitre, into Rio Sao Francisco. 



Coll. Nos. 9, 10, 12, 13. Ten miles south of Baixa Grande in a 

 stagnant water hole. Nov. 14, 1907. 



13. Baixa Grande, Rio Paqui, into Rio Salitre, into Rio Sao Fran- 



cisco. 

 Coll. No. I. • Nov. 14, 1907. 



14. Rio Paqui, into Salitre near Baixa Grande. 



Coll. Nos. 7, 8, II. Small creek in semi-arid region; muddy 

 and grass-grown, with some pebbles. Nov. 14, 1907. 



15. Finca Amaratu, Rio Itapicuru. 



Creek on farm emptying into Itapicuru Mirim. Nov. 21, 1907. 



16. Joazeiro, Rio Sao Francisco. 



Coll. Nos. 185-208. Sandy island in front of Joazeiro. 



Nov. 27, 1907. 

 Coll. Nos. 42-124. Temporary backwater lagoon, deep and 



muddy; six miles east of town. Nov. 28, 1907. 



Coll. Nos. 125-184. Two miles below Petrolina, opposite 



Joazeiro. Rocky, weedy shore of the Rio Sao Francisco. 



17. Barra, Fork of Rio Sao Francisco and Rio Grande. 



Coll. Nos. 125-154 (duplicated). Muddy water and muddy 

 banks. Dec. 6, 1907. 



