Megasurcula

Megasurcula is a genus of medium-sized predatory sea snails, marine gastropod molluscs in the family Pseudomelatomidae, a family previously lumped with others collectively known as turrids. Species within this genus occur in the Eastern Pacific Ocean.

==Description== (Original description) The embryo in this genus is apparently paucispiral, but conoidal. The siphonal canal is obsolete. The base of the shell is broadly obtuse. The columella shows an oblique ridge externally. The sinus is large and broadly rounded and very near the suture. The fasciolar surface below the suture is broad and feebly concave. The periphery is obtuse and not very prominent. The suture is simple, without a subjacent elevated collar. The surface is rendered somewhat rough by relatively fine, close-set and irregular spiral lines. There is no longitudinal sculpture except lines of growth.