THE 



VOYAGE OF H.M.S. CHALLENGER. 



ZOOLOGY. 



REPORT upon the Tunicata collected during the Voyage of H.M.S. 

 Challenger during the Years 1873-76. By William A. Herdman, 

 D.Sc, F.L.S,, F.R.S.E., Professor of Natural History in University 

 College, Liverpool. 



PART III. 



PREFACE. 



The first part of this Report, published iu 1882, treated of the Ascidle Simplices 

 of the Challenger collection; while the second part, published in 1886, was occupied 

 mainly by the description of the Ascidle CoMPOSlTyE, and contained also a 

 supplementary report upon some Simple Ascidians which had reached my hands 

 after the completion of Part I. The present, third, part completes the Report, and 

 contains, — 



I. The description of the remainder of the collection, viz. : — 



The Ascidi^ Salpiformes. 

 The Thaliacea. 

 The Laevacea. 

 II. General conclusions in regard to the Affinities and Classification of the 



Tunicata, with an account of their probable Phylogeny. 

 III. Two Appendices on Ascidiae Simplices. 



(ZOOL. CHALL. EXP. — PART LXXVI. — 1888.) Gggg 1 



