Megasurcula howei is an extinct species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.
The length of the shell attains 36 mm, its diameter 23.6 mm.
This high-spired, biconic species differs from Megasurcula condonana <small>(Anderson and Martin, 1914)</small> by having a smoothly conic spire and relatively narrower body whorl. When the body whorl angulation is used as a point of reference, in non-apertural view, the upper cone of M. howei is relatively higher than the lower cone, whereas the reverse is true in specimens of the stout-shelled M. condonana. Further differences are the more acute sutural angle and the concave profile of M. condonana.
It is closely related to â Megasurcula guayasensis of the Miocene in Ecuador, but differs by being less slender, a bit taller and less finely noded.
Fossils of this marine species have been found in Miocene strata of the Temblor Formation, California.