Arthrobotrys Brachyphoris Dactylella Dactylellina Dicranidion Duddingtonia Dwayaangam Gamsylella Hyalorbilia Monacrosporium Orbilia Pseudorbilia The Orbiliaceae are a family of saprobic sac fungi.

[6] There are 5 types of trap mechanisms recognized in this family:[6][7][8][9] According to the most recent classification of Ascomycota,[10] the Orbiliaceae contain only two (teleomorph) genera, the Hyalorbilia and the Orbilia.

Hyalorbilia is distinguished from Orbilia by having asci without a stalk that arise from croziers, a hemispherical to broadly conical, thin-walled apex, asci and paraphyses in a gelatinous matrix, and an ectal excipulum (the outer surface of a cup-like apothecium) of horizontal textura prismatica.

[11][12] Anamorph genera of the Orbiliaceae include Anguillospora,[13] Arthrobotrys,[14] Dactylella,[15] Dactylellina, Dicranidion,[16] Drechslerella, Helicoön,[17] Monacrosporium, and Trinacrium.

It has been suggested that the anamorph specialization illustrates convergent evolution occurring among mycelial fungi in aquatic and low-nitrogen habitats.