.CONTENTS. VU 



Page 

 Acclimatization of Pan-ots at Northrepps Hall, Norfolk, by Mr. C. 

 Buxton, M.P. ; Note on Dr. Macdonald's Paper on the Dentition 

 of Gasteropoda, by Dr. J. E. Gray, F.R.S, ; Note on Poinpholyx, 

 Lea, a new Family of Fluviatile Mollusca, by Dr. J. E. Gray ; 

 Dredging among the Shetland Isles, by J. Gwyn Jeffi-eys, F.R.S.; 

 On the Occurrence of the Genus Anser in the Peat and Gravel 

 Deposits in Cambridgeshire, by J. F. Walker, B.A., F.G.S. ; 

 New Importation oi Euplectella ; The Collared Snake (Co<f^^6er 

 natrix) in the Sea, by Dr. J. E. Gray, F.R.S. ; On the Jaw of 

 Cyliiidrella, by T. Bland ; Remarks on the Development of 

 Marine Fishes, by G. 0. Sars ; On the Name Alcyoncellum, by 

 Dr. J. E. Gray, F.R.S. &c.; On an accidental case of Monoecious- 

 ness in Ccalehogyne, by H. Baillon ; Note on a Double Egg of a 

 Fowl, by Capt. J. Mitchell ; On the Lymphatic Vessels in the 

 Tail of the Young of Batrachia, by C. Langer; Deep-Sea 

 Dredging off Spitzbergen, by Prov. Loven . . , . , 381 — 392 



NUMBER XII. 



XL VIII. On the Annelid Family of the Maldaniea. By Professor 

 Grube 393 



XLIX. Description of Fairbankia bombayana, a new Genus and 

 Species of Rissoidce from Western India. By William T. Blan- 

 FORD, A.R.S.M., F.G.S., O.M.Z.S 399 



L. On Elachista stellaris, a Seaweed new to the British Flora. By 

 Dr. J. E. Gray,, F.R.S., V.P.Z.S., &c 401 



LI. Notice of several Species of Spiders supposed to be new or 

 little known to Arachnologists. By John Blackwall, F.L.S 403 



LII. On Crustacea Amphipoda new to Science or to Britain. By 

 the Rev. Alfred Merle Norman, M.A. (Plates XXL, XXII., & 

 XXIII., figs. 1-11.). 411 



Lin. On two Isopods, belonging to the Genera Cirolana and 

 Anilocra, new to the British Islands. By the Rev. A. M. Norman, 

 M.A. (Plate XXIII. figs. 12-15.) 421 



LIV. Notes on Deep-sea Dredging. By Edward Perceval 

 Wriget, M.D.,F.L.S., Professor of Zoology, Trinity College, Dublin 423 



LV. On the Genera Cortesia and Rhabdia. By John Miers, 

 F.R.S., F.L.S., &c 427 



LVE. Notes on the Bats of the Seychelle Group of Islands. By 

 Ed. Perceval Wright, M.D., F.L.S., Professor of Zoology, Trinity 

 College, Dublin 436 



LVII. Notes on the Transportation of Living Fish from South of 

 the Equator to Europe. By Ed. Perceval Wright, M.D., F.L.S., 

 Professor of Zoology, Trinity College, Dublin 438 



LVIII. Descriptions of some new Genera and Species of Alcyonoid 

 Corals in the British Museum. By Dr. J. E. Gray, F.R.S., V.P.Z.S. 441 



