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

The silicious sponges with simple spicules appear to have existed as far back as the Siluro-Cambrian, and there is believed to be almost as early evidence of horny or corneous sponges.

From The Chain of Life in Geological Time A Sketch of the Origin and Succession of Animals and Plants by Sir J. William Dawson

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

The winter wheats are, as a rule, more soft and starchy than the spring wheats, which are usually corneous or flinty to different degrees.

From Human Foods and Their Nutritive Value by Harry Snyder

On the general surface the fungus has its seat in the epidermis, especially in the corneous layer; upon the scalp and bearded region the epidermis, hair-shaft, root and follicle are invaded.

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