"38. S. navalis.
Larger, 1.25 by .50, less pointed; costae, 22, not quite as wide as interspaces, brown without, and within, costae and margin, yellow-white. Very common on south end of Ship Channel Key on palms. 1070. Plate 20. figs. 8, 9, 10." (Maynard and Clapp in Maynard, 1920d:124).