viii CONTENTS. 



Page 

 LVIII. On the Flint Nodules of the Trimmingham Chalk. By W. 

 J. Sollas, M.A., F.R.S.E., F.G.S., Professor of Geology in Univer- 

 sity College, Bristol 437 



LIX. Descriptions of two new Coleoptera from Madagascar. By 

 Chakles 0. Watekhouse 4G1 



LX. Description of Ophites japonicus, a new Snake from Japan. 

 By Dr. A. Guntheb, F.R.S. &c 462 



New Northern Gephyrea, by MM. D. C. Danielssen and J. Koren; 

 On the Existence of Polar Globules in the Ovum of the Crus- 

 tacea, by M. L. F. Henneguy ; On the Organization and Deve- 

 lopment of the Gordii (Second Note), by M. A. Villot . .402—466 



Index 408 



PLATES IN VOL. VI. 



Plate I. 



II. 



III. 



IV. 



V. 



VI. 



VII. 



VIII. 



IX. 



X. 



XI. 



xn. 



XIII. 

 XIV. 



xv. 



XVI. 



XVII. 



XVIII. 



XIX. 



XX. 



XXI. 



New Crustacea from New Zealand. 

 Piramutana macrospila. 

 Gastrosaccus spinifer. 



>New Spongida from the Gulf of Manaar. 



New Marine Polyzoa. 



Pedicellaria from Sphaerechinus granulans. 



Conjugation in Spirogyra. — Sponge-spicules from the Car- 

 boniferous Strata of Ben Bulben. 

 New Ilydroida and Polyzoa from Barents Sea. 



New Marine Polyzoa. 



Stromatopora dartingtoniensis. 



Sponge-spicules &c. from the Flint Nodules of the Trimming- 

 ham Chalk. 

 Anatomy of Pterygodermatites Macdonaldii. 



