Vol. s3-47, Issue 280, 1894April 01, 1894 EDT
The Appendages of the Pygidium of Triarthrus.
The Appendages of the Pygidium of Triarthrus.
Charles Emerson Beecher,
Beecher, C. E. (1894). The appendages of the pygidium of Triarthrus. American Journal of Science, s3-47(280), 298–300. https://doi.org/10.2475/ajs.s3-47.280.298