CONTENTS OF No. 235-New Series. 
MEMOIRS : 
PAGE 
On some Queensland Trematodes, with Anatomical Observations 
and Descriptions of New Species and Oenera. By S. J. Johnston, 
B.A., D.Sc., Demonstrator of Biology, University of Sydney. (With 
Plates 22 to 27) . . . . . . 361 
On the Maxillary Glands and some other Features in the Internal 
Anatomy of Squilla. By W. N. F. Woodland, The Muir Central 
College, Allahabad, India (late of University College, London). 
(With Plate 28 and 9 Text-figures) .... 401 
On a Bemarkable New Type of Protistan Parasite. By H. M. 
Woodcock, D.Sc., and G. Lapage, B.Sc. (With Plates 29 and 30 
and 2 Text-figures) ...... 431 
Studies on Parasitic Protozoa. II. (a) The Encystment of R h i z o - 
niastix gracilis Alexeieff ; (b) Tetratrichomastix parisii, 
n. sub-gen., n. sp. By Doris L. Mackinnon, B.Sc., Assistant in the 
Zoology Department, University College, Dundee. (With Plates 
31 and 32) .... . . 459 
