6 DR. J. WILHELMI. 



Newport, R. I., P. zvheatlandi {iilvce) 1893 Yerrill (12). 

 Point Judith, R. I., P. xvheatlandi {frequcns) 1855 Leidy (9). 

 Watch Hill, R. I., P. {Fovia) warreni{grised) 1872 Verrill (10). 

 New Haven, Conn., P. wheatlandi {frequcns) 1873 Verrill (10). 

 New Haven, Conn., P. zvheatlandi [frequcns, iilvce) 1893 Ver- 

 rill (12). 



LITERATURE. 

 Curtis, W. C. 



1. '00 The Occurrence of Gunda segmentata in America. Biol. Bull., Boston, Vol. 



2, 1900-01, p. 331. 

 Girard, Ch. 



2. '48-'5i Several New Species of Marine Planariae of the Coast of Massachusetts. 



Proc. Boston Soc. N. Sc, Vol. 3, 1848-51 (1850), p. 521. 



3. '50 A Brief Account of Fresh-water Planarire of the United States. Ibid., 1850, 



p. 264. 



4. '50 Observations upon Planarian Worms. Ibid., 1850, pp. 363-364. 



5. '51 Di Planarien und Nemertinen Nordamerikas. Kellers und Tiedemanns 



Nordamerikanische Monatsberichte fiir Natur- und Heilkunde. Philadelphia 

 1851, 2 Bd., p. 4. 



6. '54 in : W. Stimpson, Synopsis of the Marine Invertebrata of Grand Manan, or 



the Region about the Mouth of the Bay of Fundy, New Brunswick. Smith- 

 sonian Contrib. to Knowledge, 6 Bd., Washington, 1854, pp. 27, 28. 



7. '54 Description of Two New Genera and Two New Species of Planaria. Proc. 



Boston Soc. N. H., Vol. 4, 1857-^(1852), p. 211. 



8. '93 Recherches sur les Planaries et Nemertiens de TAmerique du Nord. Ann. 



Sc. Nat., Vol., 15, 1893. 



Leidy T. 



9. '55 Contribution Towards a Knowledge of the Marine Invertebrate Fauna of the 



Coast of Rhode Island and New Jersey. Journ. Acad. N. Sc. New Ser., 

 Vol. 3, 1855, p. 143. 

 Verrill, A. E. 



10. '73 Report upon Invertebrate Animals of Vineyard Sound and the Adjacent 



Waters, with an Account of the Physiological Characters. United States 

 Commission of Fish and Fisheries, Commission's Report for 1871 and 1872, 

 Washington, 1873, pp. 325, 332, 477, 480, 488, 633. 



11. '74 Results of Recent Dredging Expeditions on the East Coastof New England. 



Amer. Journ. Sc. and Arts, New Haven, 1874, Vol. 7, p. 132. 



12. '93 Marine Planarians of New England. Trans. Conn. Acad., Vol. 8, 1893, 



pp. I18-127. 

 Marine Biological Laboratory, 



Woods Hole, Mass., August, 1907. 



