Vlll 



Cojttents. 



IX. INSEOTA. 



Aptera. 



collembola .. .. .. .. 221 



By GrEO. H. Carpenter, B.Sc. (Lond.), Science 

 and Art Museum, Dublin. 



Pterygota. 



Hemiptera Parasitica. 

 Pedicdlid^ 

 By the Hon. N. 0. Rothschild, B.A. 



224 



XLVII 



ARACHNIDA. 



ACARINA 



By Dr. E. L. Trouessart, President de la 

 Societe Zoologique de France, Membre Corre- 

 spondant de la Zoological Society of London. 



225 



XL CRUSTACEA 



By T. V. Hodgson. 



228 



XXIX -XL 



XIL POLYCHAETA 



By Arthur Willey, D.Sc, F.Z.S. 



262 



XLI-XLVI 



XIIL GEPHYREA 



By A. E. Shipley, M.A. 



284 



XIV. NEMATODA 



By Dr. von Linstow. 



285 



XV. CESTODA .. 



By Dr. von Linstow. 



285 



XVL POLYZOA .. 



By R. KlRKPATRICK. 



286 



XVII. ANTHOZOA. 



Alcyonaria .. 

 By Dr. Loui8 Roule, and Sydney J. Hickson, 

 F.R.S., Professor in Owens CoUege, Man- 

 chester. 



290 



XLVII 



XVIIL ACTINIA 294 



With an account of their peculiar Brood 

 Chambers, by Joseph A. Clubb, M.Sc, As- 

 sistant Curator of the Lord Derby Natural 

 History Museum, Liverpool. 



XLVIH-LII 



