The fusiform shell is not umbilicate, anteriorly rostrate and obliquely folded. It belongs to a small group of rostrate laemophloeid genera endemic to the New World. Separate records for sinistral (left-handed) shells and obviously rostrate cowries (family Cypraeidae) are also included. The fruits are usually dry with thick, tough pericarps, sometimes rostrate and/or winged. The large body whorl is oval and not rostrate. Related rostrate genera are "Rhinomalus" and "Rhinophloeus". Rostrate spores can survive for several days out of the host. The buds are globose and rostrate, with a calyx calyptrate that sheds early. The asci (spore-bearing cells) of the Lecanoromycetes most often release spores by rostrate dehiscence.