Abstract

The type species of Anacheirurus--Cheirurus (Eccoptochile) frederici Salter, 1864--is redescribed on the basis of notes left by the late W. F. Whittard, edited by W. T. Dean. Trilobites reported under the generic name Lehua from Llanvirnian and Llandeilo localities (Ordovician) elsewhere are placed in the synonymy. The stratigraphic range of the genus is thus extended upwards.

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