1890.] NATURAL SCIENCES OF PHILADELPHIA. 203 



4. Anhinga anhinga Tiinn. Snake biixl. 



Several seen ou the lagoon back of Progreso ; said to be common. 



5. Pelecanus fuscus Linn. Brown Pelican. 



Several of these birds were always to be seen fishing close to the 

 beach at Progreso. They appeared to be very tame, coming close 

 up to the pier where boats were being unloaded. 



6. Fregata aquila (Linn.). Man-o'-War Bird. 



Very common off the coast. Both old and young were seen, though 

 the former appeared the more numerous. Sometimes as many as 

 one hundred could be seen in one flock. 



7. Anas discors Linn. Bine-winged Teal. 



Several were observed on the lagoon back of Progreso, March 

 19th, and one specimen was shot. 



8. Anser ? 



On the night of March 19th great numbers of geese were seen and 

 heard flying overhead, following the coast line in a northeasterly 

 direction. Unfortunately no specimens were procured. 



9. Phoenicopterus ruber Linn. Flamingo. 



Said to be common along the coast but not seen during our stay. 



10. Ardea herodias Linn. Great Blue Heron. 



Found in the swamps back of Progreso. 



11. Ardea egretta Gmelin. American Egret. 



Very common flying about over the lagoons and mangrove 

 swamj^s along the coast. We secured no siDCcimens. 



12. Ardea caerulea Linn. Little Blue Heron. 

 One seen on the aguada at Shkolak. 



13. Ardea tricolor ruficoUis (Gosse). Louisiana Heron. 



Very common in the mangrove swamps at Progreso. 



14. Ardea virescens Linn. Green Heron. 



One seen near Progreso. 



15. Gallinula galeata (Licht.) ? Florida Gallinule. 



One bird seen swimming on the aguada at Shkolak supposed to be 

 this species. 



16. Aegialitis vocifera (Linn.). Killdeer. 



One shot on the mud flats back of Progreso, March 20th. 



