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Archipilium macropus (Haeckel, 1887)

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Sethopilium macropus
Shell smooth, with slight collar stricture. Relative length of the two joints = 4: 7, breadth = 6: 13. Cephalis hemispherical, with irregular double-contoured pores, about as broad as the bars. Thorax with three very stout, curved, widely divergent ribs, prolonged into three curved, cylindrical, very long feet, which are three to four times as long as the shell, and convex on the outside. Between every two ribs, beyond the collar stricture, two large broad meshes, and beyond this two or three rows of smaller meshes.
Dimensions - Cephalis 0.04 long, 0.06 broad; thorax 0.07 long, 0.13 broad.
Habitat.-Central Pacific, Station 271, depth 2425 fathoms.
Haeckel 1887











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