CONTENTS OF VOL. IV. 



[SECOND SERIES.] 



NUMBER XIX. 



Page 



I. Account of a Ribbon Fish (Gymnetrus) taken off the coast of 

 Northumberland. By Albany Hancock and Dennis Embleton, M.D. 

 (With two Plates.) 1 



II. Ornithological Notes. By John Blackwall, F.L.S 18 



III. A few remarks upon a species of Zoophyte discovered in the 

 New Docks of Ipswich. By Mr. Edwin Giles and Dr. W. B. Clarke 26 



IV. On Odontites rubra, Pers., and the allied forms, including a 

 notice of a new species. By John Ball, M.R.I. A 28 



V. Contributions to the Botany of South America, By John Miers, 

 Esq., F.R.S., F.L.S 31 



VI. On the Identification of a Genus of Parasitic Hymenoptera. 



By J. O. Westwood, F.L.S 39 



VII. Descrii^tlons of Aphides. By Francis Walker, F.L.S 41 



VIII. On the Animal oi Kellia rubra. By Joshua Alder, Esq. ... 48 



Proceedings of the Zoological Society bQ — 73 



On the Development of the Purkinjean Corpuscle in Bone, by Dr. 

 Leidy ; Mode of Progression with Animals, by W. A. Pike ; De- 

 scriptions of new species of the genera Nyctale, Brehm., and «Sy- 

 cobius, Vieill., by John Cassin ; Description of a new species of 

 Salamander from Upper California, by Edward Hallowell, M.D. ; 

 The Pine Tree of the Tenasserim Provinces, by the Rev. F. Ma- 

 son ; Description of a new Helix and Streptaxis, from the Collec- 

 tion of H. Cuming, Esq., by Dr. L. Pfeifier ; Meteorological Ob- 

 servations and Table 74 — 80 



NUMBER XX. 



IX. A descriptive Account of the Freshwater Sponges (genus Spon- 

 gilla) in the Island of Bombay, with Observations on their Structure 



