Helminthoglyptidae Pilsbry, 1939 The Helminthoglyptinae are a subfamily of air-breathing land snails, terrestrial pulmonate gastropod mollusks within the family Xanthonychidae.

[2] This is a large and diverse group of new world snails, ranging in distribution from Alaska through North America to the West Indies, Central America, and as far south as Argentina.

In this subfamily, the number of haploid chromosomes lies between 26 and 30 (according to the values in this table).

Many of these snail genera have been placed by various authors in more restrictively defined families, such as: Cepolidae, Epiphragmophoridae, Humboldtianidae, Monadeniidae, and Xanthonychidae.

[8][9][10]WoRMS added the two genera Greggelix and Micrarionta, as well as dividing the subfamily into two tribes.