Carinodrillia halis

The suture is appressed with an angular thread in front of it, separated by an excavated wide fasciole,.

The other spiral sculpture consists of (on the body whorl nine) widely separated subequal cords on the posterior one of which the suture is laid.

The axial sculpture consists of (on the body whorl six) short, very prominent ribs with narrower interspaces, not continuous up the spire and horizontally angulated by the cord which forms the periphery.

On the early part of the spire the peripheral cord is duplex, but the posterior thread gradually fades out.

Fossils have been found in Quaternary strata of Costa Rica, age range: 2.588 to 0.781 Ma