536 



EDITH M. PRATT. 



1895. 



1896. 



1897. 

 1898. 



1899. 



1900. 



HiCKsoN, S. J. " The Anatomy of Alcyonium digitatum." 

 Sci. Vol. XXXVII. Pt. 4, 189.5. 



Quart. Journ. Micro. 



SCHENK, A. " Clavulariiden, Xeniiden, und Alcyoniiden von Ternate." Frankfurt-a-M. 

 1896. 



Whiteleoge, T. " Alcyonaria of Funafuti." Mem. Austral. Mus. Pt. III. 1897. 



AsHWORTH, J. H. " The Stomodaeum, Mesenterial Filaments, and Endoderm of 

 Xenia." Proc. Roy. Soc. Vol. LXiii. 1898. 



May Walther. " Beitrage zur Systematik und Chorologie der Alcyonaceen." 

 Jena Zeitsch. Naturw. Bd. xxxill. N. F. xxvi. 



Bourne, Gilbert C. " On the genus Lemnalia," also " Branching Systems of 

 Alcyonacea." Trans. Linn. Soc. London (Zool.), Vol. vii. Pt. 10. 



1900. HiCK.soN, S. J., AND Hiles, Isa L. "Stolonifera and Alcyonacea from New 

 Britain." Willey's Zool. Results, Pt. IV. Camb. Univ. Press. 



1900. HiCKSON, S. J. "Alcyonaria and Hydrocorallinae of Cape of Good Hope." Marine 



Investigations in South Africa, Cape Town, 1900. 



1901. HiCKsoN, S. J. Alcyonium. Liverpool Marine Biolog. Committee, London, 1901. 



EXPLANATION OF PLATES XXVlll— XXXI. 



ap.c. 

 au. 



= aperture of canal. 

 = contracted autozooid. 



Fig. L 



= lobe. 



= mesentery. 



= mouth aperture. 



= marginal lobe of capitulum. 



= mesogloea. 



= mesogloeal cells. 



= dense layer of mesogloea surrounding 



siphonozooids. 

 = rhizome. 

 = stouiodaeum. 

 = siphonozooid. 

 = spicule. 



= hole left by spicule after decalcification. 

 = stalk. 

 = tentacle. 



= transverse superficial canal. 

 = ventral mesenterial filament. 

 = zoochlorellae. 



Sarcophytum ehrenheryi. x 2. The mushroom-like form is characteristic of the genus. The 

 autozooids are most numerous on the margin of the capitulum where the siphonozooids 

 are few in number. The downward and inward curve of the margin is shown. Many 

 of the autozooids are almost completely retracted, but a few partially expanded ones 

 are to be seen on the margin and upper part of the capitulum. 



