CONTENTS. 



PART I.— 1875. 



I. On the Morphology of the Skull in the Woodpeckers (Picidse) and Wrynecks 



(Yungidae). By W. K. Parker, Esq., F.B.S. (Communicated by H. T. Stainton, 

 Esq., Sec. E.S.) page 1 



II. On some Atlantic Crustacea from the ' Challenger ' Expedition. By Dr. R. v. 

 Willemoes-Suhm, Naturalist to the Expedition. ( Communicated by Prof. Wtville 

 Thomson, F.B.S. 8f E.S.) 23 



III. On the Structure and Systematic Position of Stephanoscyphus mirabilis, the Type 

 of a new Order of Hydrozoa. By Prof. Aleman, M.D., LL.D., F.B.S., fyc, Bres. 

 Linn. Soc 61 



