HAPLOTREMATIDAE
Especes : 3 Taxa : 3 (maj:18-01-06)

HAPLOTREMATINAE
Haplotrema
Haplotrema concavum (Say 1821), ( 15 ) Canada & U.S.A,
Haplotrema concolor (Ferussac 1821), ( 15 ) Porto Rico,
Haplotrema vancouverense (Lea 1839), ( 25 ) Alaska & Californie,