Verm. 1 
VERMES. 
BY 
P. Chalmers Mitchell, B.A., F.Z.S. 
I. — Introduction, p. 1. 
II.— List of Titles, p. 2. 
III. — References. Systematic Classification, p. 16. 
IY.— References. Subject-matter Classification, p. 23. 
I. — INTRODUCTION. 
Again this year there is a very large amount of Morphological and 
Zoological work on this large group. There is a valuable monograph by 
Boehmig on Turbellarians, and by Joyeux-Laffuie on Chcetopterus. 
Benham has begun an attempt to classify the Earthworms, a group on 
which a very large amount of work has been published by different 
authors in recent years. Burger has an important contribution to our 
knowledge of the structure of the Nemertiues. IIamann gives a number 
of very suggestive reasons for bringing together the Nematoda and the 
Acantliocephala. Sciiimkewitsch has summed up the results of his 
recent researches on Balanoglossus, and gives an interesting division of 
Coelomata , based on the nervous system. Wilson has an important paper 
on the mesoblast of Annelids, and Bergh on Annelid embryology. 
Meyer treats of Annelid descent. 
19 new genera and 148 new species have been described : — Rotifera : 
Acantliodactylus , new genus, and 21 new species. Nemertea: Poliopsis 
and Prosadenophorus, new genera, and 24 new species. Acanthocephala: 
4newspecie8. Nematoda: 13 new species. Oligoch^eta : Anisochceta , 
Bilimba , Callidrilus, Chcetobranchus , Deodrilus, Digitibranchus , Diporo- 
clioeta , Eudriloides , Heliodrilus , Hoplochceta , Nemertodrilus, Polyto- 
rentus, Pygmceodrilus , Siphonog aster, Stuhlmannia, new genera, and 38 new 
