IV CONTENTS. 



Page 



tchthys. By Albany Hancock, F.L.S., and Thojias Atthey. 

 (Plate VI.) 73 



X. On Foraminifera from the Gulf and River St. Lawrence. By 



G. M. Dawson 83 



XI. Outline of some Observations on the Organization of Oligo- 

 chsetous Annelida. By E. Ray Lankester, B.A. Oxon 90 



XII. The Tertiary Shells of the Amazons Valley, By Henry 

 Woodward, F.G.S., F.Z.S., of the British Museum. (Plate V.) . . 101 



XIII. On Af/idhasia Davidsonii, a new Palliohranchiate Genus 

 and Species. By William King, Sc.D,, Professor of Mineralogy 

 and Geology in Queen's College, Galway. (Plate XI. figs. 1-8.) . . 109 



XIV. On Fossil Sponge-spicules of the Greensand compared 

 with those of existing Species. By H. J. Carter, F.R.S. &c. 

 (Plates Vn.-X.) 112 



XV. On a new Species of Marginella from South Africa. By 



F. P. Marrat. (Plate XL fig. 13.) 141 



XVI. Notes on the Structure of the Cnnoidea, Cystidea, and 

 Blastoidea. By E. Billings, F.G.S., Palaeontologist of the Geolo- 

 gical Survey of Canada 142 



XVII. On a Species of Arenaceous Foraminifer (?) from the 

 Carboniferous Limestone of Devonshire. By Edward Parfitt, 

 Esq. (Plate XI. figs. 9-12.) 158 



X\n[II. Replv to Dr. Gray on Testudo chilensis &c. By P. L. 

 SCLATER, Ph.D., F.R.S 161 



XIX. On Ateles BarOetti. By Dr. J. E. Gray, F.R.S. &c 163 



XX. Description of a new Species of Butterfly of the Genus 

 Paphia. By Osbert Salvin, M.A., F.L.S., &c 165 



Neio Boohs : — Natural-History Transactions of Northumberland and 

 Durham. Vol. UI. Part 2. — Cardiff Naturalists' Society, Report 

 and Transactions, 1868-69. — Geology, by Prof. John Morris, 

 F.G.S. &c., and Prof. T. Rupert Jones, F.'G.S. &c. First Series. 

 — A Manual of Zoology for the use of Students, with a general 

 Introduction on the Principles of Zoology, by Henry Alleyne 

 Nicholson, M.D. &c. — Advanced Text- Book of Zoology, for the 

 use of Schools, by H. Alleyne Nicholson, M.D. &c 166—169 



On the Assumption of the Adult Form by the Genera Cyprcea and 

 Ringicula, and by certain Species of the Genus Astarte, by 

 Searles V. Wood ; Observations on the Invertebrata of Massa- 

 chusetts, by Alfred BeU, Esq. ; On Oligochaetous Annelids, by 

 E. Ray Lankester ; Abdominal Sense-organs in a Fly, by Dr. 

 A. S. Packard, Jun. ; On the Carboniferous Flora of Bear Island, 

 by Professor Oswald Heer, F.M.G.S. ; The Caudal Styles of 

 Insects Sense-organs, i, e. Abdominal Antennae, by Dr. A. S. 

 Packard, Jun 171—176 



