Leucosyrinx verrillii is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.

The suture is appressed, a coronet of short, elevated, backward pointing wrinkles marginating the whorl in front of it.

The whole shell, except the fasciole, is covered with fine flattened threads, not prominent, and often wavy or obliquely directed from irregularities of growth.

The outer lip is thin, simple, broadly arched forward, with no internal lira.

[2] (described as Leucosyrinx tenoceras) This species is found in European waters along the British Isles and the Bay of Biscay, in the Atlantic Ocean along the Azores, Cape Verde, Morocco; from North Carolina to Brazil, in the Gulf of Mexico, the Caribbean Sea and the Lesser Antilles.