90 MOLLUSCOIDA. 



4. FOWLER, G. H. The Morphology of Ehabdopleura Normanf 



Allm. Festschrift fur R. LEUCKART. Leipzig, 1892. And 

 Proc. Roy. Soc. London. Vol. clxxxviii. 



5. HATSCHEK, B. Ueber Entwicklung von Sipunculus nudus. 



Arb. Zool. Inst. Wien. Bd. v. 1884. 



6. HATSCHEK, B. Lehrbuch der Zoologie. Jena, 1888. Part i., 



p. 40. 



7. LANG, A. Zum Verstandniss der Organisation von Cephalo- 



discus dodecalophus M'Int. Jen. Zeitsclir. f. Nat. Bd. xxv. 



8. LANKESTER, E. KAY. Article, Polyzoa in Encyclopaedia 



Britannica. 9th Ed. 1885. Part Ixxiii., p. 429, etc. 



9. LANKESTER, E. RAY. Rhabdopleura. Quart. Journ. Micro^ 



Sci. (2). Vol. xxiv. 1884. 



10. MclNTOSH, W. Report on Cephalodiscus dodecalophus, etc.. 



CJidLlenger Reports. Vol. xx. 1887. With an Appendix 

 by S. F. HARMER. 



11. MILNE-EDWARDS, H. Recherches anatomiques, physiologiques. 



et zoologiques sur les Poly piers de France. 1841-1844. 



12. ROULE, L. Considerations sur 1'embranchement des Trocho- 



zoaires. Ann. Sci. Nat. (7). Tom. xi. 1891. 



13. SPENGEL, J. W. Monographic der Enteropneusten. Fauna. 



und Flora des Golfes von Neapel. Bd. xvii. 



APPENDIX TO LITERATURE. 



I. MASTERMAN, A. T. On the Diplochorda. Quart. Journ. Micro. 



Sci. Vol. xl. 1897. 

 II. DELAGE, Y., and HEROUARD, E. Traite de Zoologie Concrete. 



Tom. v. 1897. 



III. SEDGWICK, A. Text-book of Zoology. Vol. i. 1898. pp. 54:?- 

 585. Including a criticism of MASTERMAN'S Diplochorda 

 (No. L). 



