Irenimus sec. Kuschel

Kuschel (1969) formally combined nine nominal taxa in Irenimus, but implied that all species described in Catoptes to that point should be included in Irenimus, pending further study. Irenimus sec. Kuschel is congruent (with a single exception, Catoptes cuspidatus Broun) to Catoptes sec. Broun.

In a subsequent paper, Barratt & Kuschel (1996) described four additional species in Irenimus . This expanded, but was consistent with, the concept of Irenimus sec. Kuschel (1969).