THE 
VOYAGE OF 
H.M.S. CHALLENGER. 
ZOOLOGY. 
REPORT on the Polyzoa collected by H.M.S. Challenger during the 
years 1873-76. By George Busk, F.R.S., Y.P.L.S., &c. 
-- - ~ j 
PART II.— The CYCLOSTOMATA, CTENOSTOMATA, 
and PEDICELLINEA. 
INTRODUCTION. 
So much has been written of late years concerning the Polyzoa, that it is not possible for 
me here to name all those to whom I have been indebted for assistance in the preparation 
of this Report, but among the most important recent contributions to our knowledge of 
all the three orders now under consideration, must be mentioned the valuable works 
of Mr. Hincks 1 and Professor Smitt . 2 To M. L. Joliet 3 we owe papers, both anatomical 
and descriptive, on the Polyzoa of the French Coast. Mr. P. H. Macgillivray , 4 has 
described and figured many new species of Cyclostomata belonging to the Australian 
region. Mr. Waters 5 has given descriptions of recent species from the Bay of Naples, as 
well as of fossil Australian species ; and Dr. J. Jullien 6 of species collected in the 
1 Hincks, Brit. Mar. Polyz., 1880, and various papers in Ann. and Mag. Nat. Hist.., &c. 
2 Smitt, Hafs-Bryoz. Uteckl. och Fettkr., 1864 ; Bryoz. Mar., 1867 ; Kritisk Forteckn., 1865, 1871 ; Florid 
Bryoz., pt. i., 1872. 
3 Joliet, Les Bryozoaires des Cotes de France, Archives d. Zool. Expdr., t. vi., p. 193, 1877. 
4 Macgillivray, P. H., Nat. Hist. Viet., decades iv. and vii.; Proc. Roy. Soc. Viet., Polyzoa, parts iv. vi., vii., viii., ix. 
5 Waters, Ann. and Mag. Nat. Hist., ser. 5, vol. iii. ; Quart. Journ. Geol. Soc., vol. xl. p. 674, 1884. 
6 Jullien, Bull. Soc. Zool. de France, t. vii., 1882. 
(ZOOL. OIIALL. EXP. — PART L. — 1886.) 
Ddd a 
