No. 593] SHORTER ARTICLES AND DISCUSSION 317 



All the drawings were made from preserved material in which 

 the vermilion spots had mostly faded to a white or pale pink 



The first twenty figures were made from about three dozen 

 specimens, probably all from the neighborhood of Morgantown. 

 The last four figures are from animals that had been obtained 

 from the Marine Biological Supply Company, Woods Hole, Mass., 



