(SYNONYM) Elaeocyma acapulcana, new species.
Acapulco, dredged 20 fathoms (1930). Type 11587, Lowe collection.
Shell turreted, acute, smooth, of a delicate flesh color with a pinkish spot on each axial rib at the periphery. There are ten whorls including the smooth nucleus. Suture distinct, slightly undulated by the ribs of preceding whorl; spiral sculpture of sharp, narrow grooves, with much wider, flat, smooth interspaces; there are about twenty of the grooves on the body whorl anterior to the siphonal fasciole; the wide anal fasciole is faintly spirally striate under a high power lens; axial sculpture of about ten straight sharp-edged ribs, with wider interspaces, on the body whorl. Aperture rather wide and short, with a deep, rounded anal sulcus and prominent subsutural callosity; outer lip subvaricose, sharp-edged, smooth within; inner lip with thick layer of enamel; pillar short, straight; canal deep, short, wide, slightly recurved. Diameter 7 mm., altitude 17 mm.
This shell differs from Elaeocyma aerope Dall (Proc. U. S. Nat. Muse., vol. 56, pl. 1, fig. 3, 1920), in having about twice as many spiral grooves on the body whorl, and in the prominently colored peripheral spots on the axial ribs.