Descriptions of two new species of Marginella from San Thome Island / by J.R. le B. Tomlin and L.J. Shackleford. Description of a new species of Adeorbis / by J.R. le B. Tomlin. Descriptions of new species of Marginella and Mucronalia from Sao Thome / by J.R. le B. Tomlin and L.J. Shackleford. Notes on some types of Marginella in the Marrat Collection / by J.R. le B. Tomlin.
