Rhabdonella spiralis

The species now known as Rhabdonella spiralis was described by Hermann Fol based on specimens from the Bay of Villefranche. Drawing on the left is from his 1881 publication (available from the Aquaparadox website: Classic Taxonomic Monographs). Arrow on the inset of Villefranche from the late 1800's shows the Lazaret where Fol had his laboratory.