Haplotrema

Haplotrema is a genus of carnivorous land snails in the family Haplotrematidae. They are widely distributed in North America.

Species
Species include:
 * Haplotrema alameda Pilsbry, 1930 – Alameda lancetooth
 * Haplotrema caelatum (Mazyck, 1886) – slotted lancetooth
 * Haplotrema catalinense (Hemphill, 1890) – Catalina lancetooth
 * Haplotrema concavum (Say, 1821) – gray-footed lancetooth
 * Haplotrema continentis H.B.Baker, 1930 – grizzly lancetooth
 * Haplotrema costatum A.G.Smith, 1957 – costate lancetooth
 * Haplotrema duranti (Newcomb, 1864) – ribbed lancetooth
 * Haplotrema keepi (Hemphill, 1890) – glassy lancetooth
 * Haplotrema kendeighi Webb, 1951 – blue-footed lancetooth
 * Haplotrema minimum (Ancey, 1888) – California lancetooth
 * Haplotrema mokelumnense Roth, 1990 – Mokelumne lancetooth
 * Haplotrema sportella (Gould, 1846) – beaded lancetooth
 * Haplotrema transfuga (Hemphill, 1892) – striate lancetooth
 * Haplotrema vancouverense (I. Lea, 1839) – robust lancetooth
 * Haplotrema voyanum (Newcomb, 1864) – hooded lancetooth