Rimicola 53 



glacialis 52, 53 



Schizoporus 58 



venenosus 58 



Simplicomorpha 27, 61 



gigantorhabditis 27, 61 



Solenofilomorphidae 11 , 63 



Solenofilomorpha 1 2, 64 



longissima 12, (A 



Tetraposthia 39, 63 



colymheiis J9, 63 



Unanlra 30, 64 



polyvacuola 30,64 



ACKNOWLEDGMENTS 



Preparation of the "Marine Flora and Fauna of the North- 

 eastern United States" is being coordinated by the following 

 Board: 



Coordinating Editor: 



Melbourne R. Carriker, College of Marine Studies, Univer- 

 sity of Delaware, Lewes, DE 19958. 



Editorial Advisers: 



Marie B. Abbott, 259 High Street, Coventry, CT 06238. 



Arthur G. Humes, Boston University Marine Program, 

 Marine Biological Laboratory, Woods Hole, MA 02543. 



Wesley N. Tiffney, Professor Emeritus, Boston University, 

 226 Edge Hill Road, Sharon, MA 02067. 



Ruth D. Turner, Museum of Comparative Zoology, Harvard 

 University, Cambridge, MA 02138. 



Roland L. Wigley, National Marine Fisheries Service, North- 

 east Fisheries Center, NOAA, Woods Hole, MA 02543. 



Robert T. Wilce, Department of Botany, University of Mass- 

 achusetts, Amherst, MA 02116. 



The Board, which established the format for the "Marine 

 Flora and Fauna of the Northeastern United States," invites 

 systematists to collaborate in the preparation of manuals, 

 reviews manuscripts, and advises the Scientific Editor of the 

 National Marine Fisheries Service. 



Gratitude is expressed to Melbourne R. Carriker and to 

 members of the Systematics-Ecology Program and the Marine 

 Biological Laboratory at Woods Hole, who provided assistance, 

 laboratory space, and library facilities for the study of 

 Turbellaria. Drew University also provided funds, supplies, and 

 the use of a small laboratory on the campus. Suggestions and 

 critical reviews by a number of persons have been very helpful 

 and are acknowledged here with gratitude. Grace Beach, Eva 

 Montiero, and Susan Wier were most patient in typing and 

 proofreading the manuscript. 



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