Park Database Species and Subspecies Ranked by Number of Sites
Where the Order Basommatophora is found in All Watersheds

No. of Sites	Class	Order	Family	Genus	Species	Subspecies	Common Name	Where for All Dates?	Phenology
39	Gastropoda	Basommatophora	Carychiidae	Carychium	species **	-	(NA)	Here	Phenology
23	Gastropoda	Basommatophora	Ancylidae	Ferrissia	rivularis	-	Freshwater limpet	Here	Phenology
15	Gastropoda	Basommatophora	Ancylidae	Ferrissia	species **	-	(NA)	Here	Phenology
14	Gastropoda	Basommatophora	Carychiidae	Carychium	nannodes	-	File thorn snail	Here	Phenology
12	Gastropoda	Basommatophora	Carychiidae	Carychium	clappi	-	Thorn snail	Here	Phenology
10	Gastropoda	Basommatophora	Carychiidae	Carychium	exiguum	-	Thorn snail	Here	Phenology
9	Gastropoda	Basommatophora	Carychiidae	Carychium	exile	exile	Ice thorn	Here	Phenology
8	Gastropoda	Basommatophora	Physidae	Physella	species **	-	(NA)	Here	Phenology
7	Gastropoda	Basommatophora	Planorbidae	Helisoma	anceps	-	Two-ridge rams-horn snail	Here	Phenology
3	Gastropoda	Basommatophora	Ancylidae	Ferrissia	fragilis	-	Freshwater limpet	Here	Phenology
3	Gastropoda	Basommatophora	Physidae	Physella	gyrina	-	Freshwater bladder snail	Here	Phenology
3	Gastropoda	Basommatophora	Planorbidae	Menetus	dilatatus	-	Bugle sprite	Here	Phenology
2	Gastropoda	Basommatophora	Ancylidae	Laevapex	fuscus	-	Freshwater limpet	Here	Phenology
2	Gastropoda	Basommatophora	Lymnaeidae	Lymnaea	columella	-	Freshwater snail	Here	Phenology
2	Gastropoda	Basommatophora	Lymnaeidae	Lymnaea	humilis	-	Freshwater snail	Here	Phenology
2	Gastropoda	Basommatophora	Physidae	Physa	gyrina	-	Freshwater bladder snail	Here	Phenology
2	Gastropoda	Basommatophora	Physidae	Physella	heterostropha	-	Freshwater bladder snail	Here	Phenology
1	Gastropoda	Basommatophora	Ancylidae	Ancylidae_genus *	species **	-	(NA)	Here	Phenology
1	Gastropoda	Basommatophora	Ancylidae	Laevapex	species **	-	(NA)	Here	Phenology
1	Gastropoda	Basommatophora	Carychiidae	Carychium	exile	-	Ice thorn	Here	Phenology
1	Gastropoda	Basommatophora	Carychiidae	Carychium	mexicanum	-	Thorn snail	Here	Phenology
1	Gastropoda	Basommatophora	Lymnaeidae	Lymnaeidae_genus *	species **	-	(NA)	Here	Phenology
1	Gastropoda	Basommatophora	Lymnaeidae	Stagnicola	species **	-	(NA)	Here	Phenology
1	Gastropoda	Basommatophora	Physidae	Physa	acuta	-	Freshwater bladder snail	Here	Phenology
1	Gastropoda	Basommatophora	Planorbidae	Gyraulus	parvus	-	Ash gyro snail	Here	Phenology
1	Gastropoda	Basommatophora	Planorbidae	Gyraulus	species **	-	(NA)	Here	Phenology
1	Gastropoda	Basommatophora	Planorbidae	Menutus	dilatatus	-	Rams horn snail	Here	Phenology

*---(not identified to the genus level)
**---(not identified to the species level)
(na)---(the Park database does not have a common name for this species)