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5-2 times as numerous as peripheral projections; interval between peripheral cord/keel and abapical suture progressively deeper and more channelled with growth; development of remaining spirals between adapical suture and periphery variable, sometimes distinct, sometimes obsolete; axial sculpture becoming less obvious with growth; apical whorls (not first) somewhat cancellate, becoming more foveolate with elongate D-shaped pits on later whorls; pliculae in supra-sutural sulcus usually stronger and less close-set than those above peripheral keel.
Less obvious are the shape of the grains, which is dependent on the ratio of P/E, and the type of tectum discontinuities (perforate, microreticulate, foveolate, or reticulate), which depend on the size of the discontinuities.
The diagnostic characters of Eremulus are (data summarized from descriptions of species): costulae well developed and visible; rostrum rounded; sensilli flagelliform, rarely spindle-shaped (exceptionally with small sensillar head); anterior part of notogaster with transverse foveolate band; 10 to 11 pairs of notogastral setae; anal and adanal setae simple; epimeral setae branched (1c often setiform); genital and aggenital setae branched (exceptionally setiform).
slits; pollen monosulcate, proximal sculpturing psilate to foveolate.