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References to Literature. 



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 Arch. f. Anat. u. Phys., Phys. Abt. 1880. p. 57—64. 



2) Die Beziehungen der Cytozoen (Würmchen] zu den Zellkernen. Arch. f. 



Anat. u. Phys., Phys. Abt. 1881. p. 297-316. Taf. V. 



3) Hagenmüller, P., Bibliotheca sporozoologica, 1899. 



4) Hintze, R., Lebensweise und Entwicklung von Law/,esto-e//a minima (Chaus- 



sât). Zool. Jahrb. Abt. f. Anat. XV. 4. p. 693—730. pl. XXXVI. (1902). 



5) Labbé, A., Recherches . . . sur les parasites endoglobulaires du sang des Ver- 



tébrés. Arch. zool. Exp. et Gén. (3), II. p. 55— 2ò8, 10 pis. (1894). 



6) Lankester, E. R., On Drepanidium ranarum, the cell-parasite of the Frog's 



blood and spleen. Quart. Journ. Micr. Soc. Vol. XXII. p. 53—65. (1882;. 



7) Lav e ran. A., Contribution à l'étude de Drepaniditmz ranarum Liankestev. C. 



R. Soc. Biol. Paris lO), L. p. 977—980. (1898). 



8) Laveran, A., et Mesnil, F., Trypanosomes et Trypanosomiases, Ch. II, p. 10 



—11. Paris 1904. 



9) Laveran, A., Essai de classification des Hématozoaires endoglobulaires etc. 



C. R. Soc. Biol. Paris LIII, p. 798. (1901). 



10) Minchin, E. A., Sj)orozoa, in Lankester"s Treatise on Zoology, pt. I. fase. II. 



p. 150—360. ,1903.) 



11) Plimmer, H. G., and Bradford, J. R., Trypanosoma Briicei, the organism 



found in Xagana or Tse-tse fly disease. Quart. Journ. Micr. Soc. Vol. 45. 

 p. 453. (1902.) 



12) Schaudinn, F., Archiv f. Protistenkunde II, p. 339— 340, footnote (interme- 



diate host of KaryolysKs lacertariim) (1903). 



13) Siegel, Die geschlechtliche Entwicklung von Haemogregarina stepanovivav 



Rüsselegel Placobdclla catenigera. Arch. f. Protistenkunde II. p. 339 

 —342, 7 text-figures. (1903.) 



14) Steinhaus, J., Cytopliagus tritonis . . . Centralbl. f. Bakt. u. Paras. Jena, Bd.9. 



p. 50-52. (1891.) 



15) Wasi el e w ski, von, Sporozoenkunde. Jena, (1896). 



2. Agaricoides, a new type of Siphonogorgid Alcyonarian. 



By Jas. J. Simpson, M. A., Zoological Department, University of Aberdeen. 



(With 19 figs.) 



eingeg. 10. Juni 1905. 



This beautiful and apparently unique Alcyonarian (Siphonogor- 

 ginae) was included in a collection of Deep-sea forms 

 obtained in the Indian Ocean by the Royal Indian 

 Survey Ship "Investigator". As some time must elapse 

 before the Report on the entire collection is published 

 by the Indian Museum, it has been thought advisable 

 to give a separate record of this peculiarly interesting 

 type. I am indebted to Prof. J. Arthur Thomson, 

 University of Aberdeen, and to Prof. A. Alcock, 

 Calcutta, for the opportunity of describing it. colcmv ' (*/ N^ S ) 



The new genus is represented by numerous speci- 

 mens varying greatly in size which illustrate different stages of growth 

 (figs. 1 and 4). 



