Vlll CONTENTS. 



Page 

 particularly on the Aphrocallistidce, Aulodictyon, and Farrea, toge- 

 ther with Facts elicited from their Deciduous Structures, and 

 Descriptions respectively of three new Species. By H. J. Carter, 

 F.R.S. &c. ..... .437 



LV. Descriptions of New Genera and Species of Heteromera, chiefly 

 from New Zealand and New Caledonia, together with a Revision of 

 the Genus Hypaulax and a Description of an allied New Genus from 

 Colombia. By Frederick Bates 472 



LVI. On the Great Northern Falcons. By Alfred Newton, 

 M.A., F.R.S., &c 485 



LVII. Descriptions of three new Species of Asiatic Birds. By 

 Arthur, Viscount Walden, P.Z.S., F.R.S., &c 487 



LVIII Reply to Dr. J. E. Gray's Observations on certain 

 Species of Sponges described in the ' Proceedings of the Zoolo- 

 gical Society * for 1873. By Dr. J. S. Bowerbank, F.R.S. &c 488 



New Books: — Andrew Garrett's 'Fische der Siidsee,' beschrieben 

 und redigirt von Albert C. L. G. Giinther. — The Recent and 

 Fossil Foraminifera of Belgium, by MM. H. J. Miller and E. 

 Vanden Broeck 491—494 



Mr. Albany Hancock ; On a Variety of Chersina angulata, by Dr. J. 

 E. Gray, F.R.S. &u. ; Fertilization of Pedicularis canadensis, by 

 Mr. Thomas Meehan ; Fertilization of Pedicularis canadensis, 

 by Mr. Gentry ; Bos brachyceros, the West- African Buffalo, and 

 the Dwarf Buffalo of Pennant, by Dr. J. E. Gray, F.R.S. &c. ; 

 On the Vascular System of the Ascidia, by Prof. C. Heller. .495 — 501 



Index • 502 



PLATES IN VOL. XII. 



Plate I. New Species of Gumminese. 



II. Structure of Lingula anatina. 



III. New Crustaceans. — New Species of Cellepora. 



IV. New Species of Stromatopora. 

 V. Oscaria Swinhoei. 



VT j' I New Species of Phrynus. 



jy' I Marine Copepoda. 



X. New Species of Synocladia. 

 XL Archsediscus Karreri. 

 XII. Sterna of young Tortoises. 

 XIII. \ 

 XIV. 



XV. \ Structure of the Hexactinellidae and Lithistida?. 

 XVI. 

 XVII.; 



