title: Crassispira vexillum
text: # Crassispira vexillum
  
  Crassispira vexillum is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae.
  
  ## Description
  
  The length of the shell attains 11 mm.
  
  The shell is closely ribbed, and with revolving ridges at the base. The color of the shell is yellowish, the lower half of the body-whorl, and a narrow lower portion of those of the spire chocolate-brown.
  
  ## Distribution
  
  This marine species occurs off Barbuda and St. Vincent
  
  