corneous

It had vanished during his babyhood leaving only a corneous spot on his skull; but people were glad when Tomlin died.

From Time Magazine Archive

In the next stage the larva has a solid corneous envelope and an oval shape, and, in its color, consistency, and immobility, resembles the chrysalis of a fly.

From A Book of Natural History Young Folks' Library Volume XIV. by David Starr Jordan

Base of these wings in the male with a strong bristle passing behind a strong corneous retinaculum, which arises from the anterior side of the sub-costal nervure.

From Discoveries in Australia, Volume 1. With an Account of the Coasts and Rivers Explored and Surveyed During The Voyage of H.M.S. Beagle, in the Years 1837-38-39-40-41-42-43. By Command of the Lords Commissioners of the Admiralty. Also a Narrative Of Captain Owen Stanley's Visits to the Islands in the Arafura Sea. by John Lort Stokes

A hard, thickened, horny patch made up of the corneous layers of the epidermis.

From Essentials of Diseases of the Skin Including the Syphilodermata Arranged in the Form of Questions and Answers Prepared Especially for Students of Medicine by Henry Weightman Stelwagon

The head is of a corneous, opaque substance.

From Chambers's Edinburgh Journal, No. 451 Volume 18, New Series, August 21, 1852 by William Chambers