CONTENTS OF No. CXXVI.— New Series. 



MEMOIRS: 



PAGE 



On a New Species of Phymosoma, with a Synopsis of the Genus and 

 some Account of its Geographical Distribution. By Aethuk E. 

 Shipley, M.A., F.L.S., Eellow and Lecturer of Christ's College, 

 Cambridge, and Demonstrator of Comparative Anatomy in the 

 University. (With Plate XI) Ill 



On the British Species of Crisia. By Sidney F. Haemek, M.A., 

 B.Sc, Fellow and Lecturer of King's College, Cambridge. (With 

 Plate XII) 127 



The Later Lar val Development of Amphioxus. By Aethuk Willey, 

 B.Sc. (of Uni versity College, London). (With Plates XIII— XV) 183 



On the Structure of Two New Genera of Earthworms belonging to 

 the Eudrilidae, and some Remarks on Nemertodrilus. By 

 Frank E. Beddard, M.A., Prosector to the Zoological Society 

 of London. (With Plates XVI— XX) . . . .235 



