Hyrtios altus (Polejaeff, 1884)

Poléjaeff, N. 1884. Report on the Keratosa collected by H. M. S. ‘Challenger’ during the years 1873-1876. Report on the Scientific Results of the Voyage of H. M. S. ‘Challenger’, 1873-1876. Zoology 11:1-88, pls I-X.