Apparently the subspecies that occurs in Utah is the type (or nominate) race, Succinea grosvenori grosvenori.
Status in Utah
This species has been reported historically from 7 localities, 4 in north-central Utah (Cache [probably], Salt Lake, Tooele, and Utah counties [Pilsbry 1948]) and three in southeastern Utah (San Juan and Grand counties [Chamberlin and Berry 1929, Chamberlin and Jones 1929]).
No information regarding abundance of this species in Utah has been reported.
Threats to this species in Utah are not known. Population trend of this species in Utah is not known.
Inventory is needed to determine whether this species is extant in the areas from which it has been reported historically in Utah and to determine the extent of its distribution in this state.
Habitats Utilized in Utah
No habitat information for this species in Utah is known. Pilsbry (1948), however, wrote: "S. grosvenori, as now understood, tolerates an astonishingly wide range in practically all external conditions. It occurs from the warm humid Gulf coast to semi-arid areas in the great plains and mountain states ...."