6 LaIDLAW, Polyclad Turbellaria in the British Museum. 



LITERATURE. 



'77. MosELEYj H. N. — "On Stylochus pelagicus." Quart. 

 Journ. Micr. Sci., n.s., vol. 17, 1877, pp. 23-32. pi. 3. 



'78. Jensen, O. S. — "Turbellaria ad litora Norvegiae occiden- 

 talia." Bergen 1878. Fol. 



'84. Lang, A. — "Fauna und Flora des Golfes von Neapel. 

 XI. Polycladida." Leipzig 1884. 



'92. Graff, L. von. — " Pelagische Polycladen." Zeitschr. f. 

 iviss. Zool., vol. 55, pp. 189-220, pis. 7-10, 1892. 



'93. Gamble, F. W. — "British Marine Turbellaria." Quart, 

 fourn. Micr. Sci.., n.s., vol. 34, 1893, pp. 433-528, pi. 39-41. 



'96. Plehn, M. — "Ergebnisse der Plankton Expedition: Die 

 Polycladen." Vol. 2, H. f., i plate. 



:03. Laidlaw, F. F. — "Skeat Expedition, Polyclads." Proc. 

 Zool. Soc, 1903, vol. I, pp. 301-318, pi. 23. 



:oyi. Laidlaw, F. F. — " Suggestions for a Revision of the 

 Classification of the Polyclads." Manchester Memoirs, 

 vol. 48 (1903), No. 4. 



