mu 
THE VOYAGE OF H.M.S. CHALLENGER. 
descriptions, a very valuable and comprehensive sketch of the morphology 
and life-history of these animals. This Part consists of 160 pages of letter- 
press, 39 plates and a map. 
Part LXXI. — Had any special attention been paid to collecting Entozoa 
during the Expedition, a much larger number of species would probably 
have been obtained than are described in this short but valuable Eeport by 
Dr. 0. von Linstow of Gottingen, one of the first authorities on this group 
of animals. The Report consists of 18 pages of letterpress, 2 lithographic 
plates and a woodcut. 
Part LXXII. — In this Report Mr. Edgar A. Smith has brought together 
systematic lists showing the present state of our knowledge of the Hetero- 
poda, founded on the collections made during the Expedition. The Report, 
which consists of 56 pages and 5 woodcuts, will be most useful to future 
investigators. 
John Murray. 
Challenger Office, 32 Queen Street, 
Edinburgh, 9th May 1888. 
