iy CONTENTS. 



New Books .-—The Great Atlas Moth of Asia (Atiacus atlas, Linn.), 

 with a coloured Plate of its Transformations. By Philip 

 Henry Gosse, F.R.S.— Supplement to the Second Edition of 

 'Acadian Geology,' &c. By J. W. Dawson, M.A., LL.D., 

 F.R.S., &c— The Gault, being the Substance of a Lecture deli- 

 vered in the Woodwardian Museum, Cambridge, 1878, and 

 before the Geologists' Association, 1879. By F. G. Hilton 

 Price, F.G.S 92 > 93 



On the Body-cavity of the Sedentary Annelids and their Segmental 

 Organs, with some Remarks on the Genus Phascolosoma, by 

 M. Oosmovici ; Morphological Notes on the Limbs of the Am- 

 phiumidie, as indicating a possible Synonymy of the supposed 

 Genera, by John A. Ryder ; On Haptophrya gigantea, a new 

 Opalinid from the Intestines of the Anurous Batrachia of 

 Algeria, by M. E. Maupas ; Trichinosis in a Hippopotamus, by 

 M. E. Heckel; On the Apparatus of Sound in some South- 

 American Fishes, by M. W. SoreDsen 94 — 99 



NUMBER XX. 



X. On the Mode of Growth of Stromatopora, including the Com- 

 mensalism of Caunopora. By II. J. Carter, F.R.S. &c 101 



XL Description of a new Species of Porcupine from the Philip- 

 pine Islands. By Dr. A. Gunther, F.R.S 106 



XII. Description of a new Species of Didelphys from Demerara. 



By Dr. Albert Gunther, F.R.S 108 



XIII. Descriptions of new Genera and Species of Gallerueince. 



By Joseph S. Baly, F.L.S ib. 



XIV. Studies on Fossil Sponges. — V. Calcisponghe. By Karl 

 Alfred Zittel 120 



XV. Description of a new Species of Vesperugo from Bermuda. 



By G. E. Dobson, M.A., M.B., &c 135 



XVI. Notice of two new Species of Fishes from the South Seas. 



By Dr. A. Gunther 13G 



XVII. Notes towards the History of the Genus JEntoniscus. By 



A. Giard. (Plate X.) 137 



XVIII. On some Moot Points in Ornithological Nomenclature. 



By Alfred Newton, M.A., F.R.S., &c 158 



XIX. Description of two new Species of Plectopylis, a Subgenus of 

 the Helicidse. By Lieut.-Colonel H. II. Godwin-Austen, F.Z.S. 



&c 163 



