Crassispira ritanida 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 8.5 mm, its diameter 4 mm.
Fossils have been found in Pliocene strata in Trinidad and Tobago; age range: 5.332 to 3.6 Ma.
