The Echinoid Directory
Pilematechinus rathbuni (A. Agassiz, 1898); Recent, East Pacific. Lateral view; from A. Agassiz 1904. Reports on an exploration off the west coasts of Mexico, central and south America and off the Galapagos Islands. Memoirs of the Museum of Comparative Zoology at Harvard University 31 (plate 81).
Length of test 90 mm.