iv CONTENTS. 



Page 



New Book : — Observationes circa Pezizas Fenniee. Scripsit William 



Nylander. Accedunt tabulaj II. lithographies .... 79 



On the Generic Name Alcyoncellam, and in reply to Dr. Gray's " Ob- 

 servations on Sponges and on their Arrangement and Nomen- 

 clature," by Dr. J. S. Bowerbank, F.R.S., F.Z.S, &c. ; On Burrow- 

 ing Annelids, by Dr. O. A. L. Morch; Contributions to the Fauna 

 "ofthe Gulf-Stream at great Depths, by L. F. de Pourtales, Assist. 

 U.S. Coast Survey ; Deep-sea Dredgings in the Region of the 

 Gulf-Stream, by L. F. de Pourtales; Zoological Results of 

 Dredgings in the Bay of Biscay, by P. Fischer ; Notice of a new 

 and diminutive Species of Fossil Horse from the Tertiary of 

 Nebraska, by Prof. 0. C. Marsh, of Yale College ; Siliceous Spi- 

 cules in Alcyonoid Corals, by Dr. J. E. Gray, F.R.S. &c. . . 84—96 



NUMBER XIV. 



XV. Observations on the ThalassicolUdce. By G. C. Wallich, 

 M.D., F.L.S 97 



XVI. Notulfe Lichenologicse. No. XXVI. By the Rev. W. A. 

 Leighton, B.A., F.L.S. — MM. A. Famintzin and J. Boranetsky on 

 the Change of the Gonidia of Lichens into Zoospores 102 



XVII. On the Ehretiacece. By John Miers, F.R.S., F.L.S., &c. 10G 



XVIII. On the Homologies of the Dental Plates and Teeth of 

 Proboscidiferous Gasteropoda. Bv John Denis Macdonald, M.D., 

 F.R.S., Staff-Surgeon, R.N. (Plate XIII.) 113 



XIX. Notes on the Fleshy Alcyonoid Corals (Alcycmium, Linn., 



or Zoophytaria carnosa). By Dr. J. E. Gray, F.R.S., V.P.Z.S., &c. 117 



XX. Notice of a Gigantic Species of Batrachus from the Seychelles 

 Islands. By Dr. A. Gunther, F.R.S 131 



XXI. Descriptions of new Genera and Species of Tenebrionidce 

 from Australia and Tasmania. By Fbancis P. Pascoe, F.L.S. &c. 

 (Plate XI.) 132 



XXII. On the Male and Female of the Genus Lernata before the 

 commencement of the so-called Retrograde Metamorphosis. By Dr. 



A. Metzger \ . . . 154 



XXIII. Observations on the Group of the Mole-Rats. By M. A. 

 Milne-Edwards 157 



New Books : — The Record of Zoological Literature, 1867. Volume 

 Fourth. Edited by Albert C. L. Giinther, M.A. &c. &c. — 

 Annuario della Societa dei Naturalist! in Modena 160 — 161 



Considerations drawn from the study of Mole-Crickets, by Samuel 

 II. Scudder ; The Finner Whale of the North Sea ; The Scrag 

 Whale of Dudley, by Dr. J. E. Gray ; Investigation of the Or- 



