THE 
VOYAGE OF H.M.S. CHALLENGEK. 
ZOOLOGY. 
KEPORT on. the Annelida Polych^ta collected by H.M.S. Challenger 
during the years 1873-76. By William C. M‘Intosh, M.D., L.R.C.S.E., 
LL.D., F.R.SS. L. & E., F.L.S., C.M.Z.S., Soc. Psychol. Par. Soc. 
Honor., &c.; Professor of Natural History in the University of St. 
Andrews. 
INTRODUCTION. 
During the organisation of the Challenger Expedition the subject of the Annelids had 
several times been brought under my notice by the late Dr. Owyn Jeffreys, who more 
than any other marine zoologist in our country had kept the department in view during 
various dredging expeditions in the neighbouring seas. Though unable, by reason of 
strict and responsible official engagements, to lend any active service to the Expedition, I 
had explained as fully as possible the best mode of preserving these somewhat delicate 
animals (Annelids) both to Professor Wyville Thomson and Mr. Murray. Towards 
the middle of 1877 I received intimation from Sir Wyville Thomson about the 
examination of this part of the collection, which he described as somewhat limited in 
extent. A review of the specimens, however, on their arrival proved that instead 
of being limited, the series was an extensive one, and reflected much credit on the 
scientific staff of the Expedition. This was probably due 'to the interest taken in 
the group by the late Dr. Rudolf von Willemoes-Sulmi, a young naturalist of great 
ability, whose previous acquaintance with the Annelida had been considerably extended 
by a trip to the Fseroes just before the equipment of the Challenger. He was chiefly 
occupied with the Crustacea, it is true, during the voyage, though a few notes and 
sketches he made on the Annelids will be specially referred to. The loss of this 
(ZOOL. CHALL. EXP. PART XXXIV. 1885.) LI U 
