CONTENTS OF No. CXXXV.— New Series. 



MEMOIRS: 



On the Relationships and Role of the Archoplasm during Mitosis in 

 the Larval Salamander, By John E. S. Moore, A.R.C.S. (From 

 the Huxley Research Laboratory, Royal College of Science, London.) 

 (With Plate XXI) . . .... 181 



On the Occurrence of Embryonic Fission in Cyclostomatous Polyzoa. 

 By Sidney F. Harmer, M.A., B.Sc, Fellow of King's College, 

 Cambridge, and Superintendent of the University Museum of 

 Zoology. (With Plates XXII, XXIII, & XXIV) . . .199 



Two New Genera and some New Species of Earthworms. By Frank. 

 E. Beddard, M.A., F.R.S., Prosector to the Zoological Society of 

 London. (With Plates XXV & XXVI) . . . .243 



Observations on the Gregarines of Holothurians. By E. A. Minchin, 

 B.A., Assistant to the Linacre Professor of Human and Compa- 

 rative Anatomy, Oxford. (With Plates XXVII and XXVIII) . 279 



A New Sporozoon in Amphioxus. By E. C. Pollard, B.Sc. (With 

 Plate XXIX) 311 



Studies on the Protochordata. By Arthur Willey, B.ScLond., 

 Columbia College, New York. (With Plates XXX & XXXI) . 317 



