"VARIABLE"	"DESCRIPTION"	"SAMPLE_TYPE"	"UNITS"	"RANGE_LOW"	"RANGE_HIGH"	"LEGAL_VALUES"
"CLASS"	"Class of taxon"	"TAXA: Invertebrates"				
"FAMILY"	"Family of taxon"	"TAXA: Invertebrates"				
"FFG"	"Functional feeding group used in metric calculations;Collector-filterer(CF),Collector-gatherer(CG),Parasite(PA),Piercer(PI),Scraper(SC),Shredder(SH)"	"TAXA: Invertebrates"				
"FFG_WSA"	"Functional feeding group assignment used in WSA-based metrics;Collector-filterer(CF),Collector-gatherer(CG),Parasite(PA),Piercer(PI),Scraper(SC),Shredder(SH)"	"TAXA: Invertebrates"				
"GENUS"	"Genus of taxon"	"TAXA: Invertebrates"				
"HABIT"	"Habit used in metric calculations;Burrower(BU),Climber(CB),Clinger(CN),Diver(DV),Planktonic(PK),Skater(SK),Sprawler(SP),Swimmer(SW)"	"TAXA: Invertebrates"				
"HABIT_WSA"	"Habit group assignment used in WSA-based metrics;Burrower(BU),Climber(CB),Clinger(CN),Diver(DV),Planktonic(PK),Skater(SK),Sprawler(SP),Swimmer(SW)"	"TAXA: Invertebrates"				
"ITISTSN"	"Taxonomic Serial Number assigned by IT IS"	"TAXA: Invertebrates"				
"NON_TARGET"	"Operational taxon unit for NRSA O/E"	"TAXA: Invertebrates"				
"ORDER"	"Order of taxon"	"TAXA: Invertebrates"				
"PHYLUM"	"Phylum of taxon"	"TAXA: Invertebrates"				
"PTV"	"Pollution tolerance value as assigned for NWSA"	"TAXA: Invertebrates"				
"PTV_WSA"	"Pollution tolerance value used in WSA-based metrics"	"TAXA: Invertebrates"				
"PUBLICATION_DATE"	"Date of data file publication"					
"SUBFAMILY"	"Subfamily of taxon"	"TAXA: Invertebrates"				
"TARGET_TAXON"	"Name of taxon at target taxon level"	"TAXA: Invertebrates"				
"TARGET_TAXON"	"TAXANAME AT TARGET HIERARCHICAL TAXONOMIC LEVEL"	"BERW"				
"TARGET_TAXON"	"TAXANAME AT TARGET HIERARCHICAL TAXONOMIC LEVEL"	"BETB"				
"TAXA_ID"	"Taxonomic ID number"					
"TRIBE"	"Tribe of taxon"	"TAXA: Invertebrates"				
"VOLTINISM"	"Voltinism as assigned by USGS"	"TAXA: Invertebrates"