EXPLANATION OF PLATE XXXV. 



Fig. I. Op]iJit(ispo7igia tenuis, Carter; x 3/5. 



Fig. 2. ()p/i//7a.spoHif/a confragosa, sp. nov. ; x 2/3. 



Fig. 3. Ophlitaspoiigia tubiiJosa, sp. nov. ; x 3/5. 



