March 25. Price 3*. 



THE JOURNAL 



OF 



THE LINNEAN SOCIETY. 



Vol. XV. ZOOLOGY. No. 85. 



CONTENTS. 



Page 



I. On the Classification of Gasteropoda. — Part II. By 

 John Denis Macdonald, M.D., E.B.S., Inspector 

 Gen. B.N. (Communicated by G. E. Dobson, M.B., 

 E.L.S.) 241 



II. Mollusca of H.M.S. 'Challenger' Expedition. — Part 

 VII. By the Bev. Bobeet Boog Watson, B.A., 

 E.B.S.E., E.L.S., &c 245 



III. Notes on British Tunicata, with Descriptions of new 

 Species. I. A.scidiidae. By W. A. Hebdman, D.Sc. 

 Edinb. (Communicated by Sir "Wttille Thomson, 

 E.B.S., E.L.S.) (Plates XIV.-XIX. and 3 woodcuts.) 274 



SOLD AT THE SOCIETY'S APARTMENTS, BURLINGTON HOUSE, 

 AND BY 



LONGMANS, GBEEN, BEADEB, AND DYEB, 



AND 



WILLIAMS AND NOBGATE. 

 1881. 



