Pelagic; marine; depth to 300 m. Seen drifting at the surface lying on its side, or swimming upright near the surface so its dorsal fin projects above the water.
- Bigelow, H. B. and Schroeder, W. C., 1953; Tortonese, E., 1990; Clemens, W. A. and G. V. Wilby, 1961; Whitehead, P. J. P., Bauchot, M.-L., Hureau, J.-C., Nielsen, J., Tortonese, E., 1984.
