CONTENTS OF No. 142.—New Series. 
MEMOIRS: 
Studies on the Comparative Anatomy of Sponges. VJI.—On the 
Anatomy and Relationships of Lelapia australis, a Living 
Representative of the Fossil Pharetrones. By ArtHUR Denby, 
D.Se. (With Plate 13) ‘ 
The Structure of the Bill and Hairs of ornithorifgdeiae para- 
doxus; with a Discussion of the Homologies and Origin of Mam- 
malian Tse By Epwarp B. Poutton, M.A., F.R.S., &., Hope 
Professor of Zoology in the University of Oxford. (With Plates 
14, 15, and 15a) ; : 3 F 
A Contribution to our Knowledge of the Oligocheta of ‘Tropical 
Eastern Africa. By Frank E. Bepparp, M.A., F.R.S., Prosector 
to the Zoological Society of London. (With Plates 16 and 17) 
PAGE 
127 
143 
201 
A Further Contribution to the Anatomy of Limnocnida tan- — 
ganyice. By R. T. Giwrner, B.A., Lecturer of Bis 
College, Oxford. (With Plates 18 and 19) : 
Notes on the Minute Structure of Pelomyxa palustris aca 
By Lit1an J. Goutp, Hall Scholar, Somerville Hall, Oxford. ee 
Plates 20 and 21) : ; : 
271 
295 
ob 
