Genus Castianeira
Phylum Arthropoda - Arthropods
Class Arachnida - Arachnids
Order Araneae - Spiders
Infraorder Araneomorphae - True Spiders
No Taxon Entelegynes
Family Corinnidae - Antmimics and Ground Sac Spiders
Genus Castianeira
Species Unknown

This spider was fast and wary. This is the only photo I managed to get of it.