CONTENTS. IX 



Papers {continued) — page 



On the occurrence of Internal Septa in Glyptostoma Newherryanum. 



By G. K. GuDE, F.Z.S. (Figs.) 283 



Note on a Dart found in the Body-cavity of Helix aspersa. By 



R. G. Barnes. (Fig.) 284 



Anatomical and Systematic Notes on Dorcasia, Trigonephrus, 



u.gen., Gorilla, Thersites, and Chloritis. By Professor H. A. 



PiLSBRY, Sc.D. (Plates XIII and XIV.) 286 



Some account of the Anatomy of Cassidaria rugosa (Linn.). By 



A. Retnell. (Plate XV and Figs.) 292 



Notes on a small collection of Shells from the Victoria Falls, 



Zambesi River, with descriptions of new species. By H. B. 



Preston, F.Z.S. (Figs.) 300 



Descriptions of six new species of Land Shells from South Africa. 



By H. C. BuRNUP. (Plate XVI.) 302 



Notes on Pleistocene and Recent Shells from Crete. By Rev. R. A. 



Bdllen, F.L.S., F.G.S. (Map and Fig.) 307 



Notes on land and fresh-water shells from the Alhambra Ditch, 



Granada, Andalucia, Spain ; on recent land shells from various 



localities near Carmona, Province of Sevilla, and on land, 



fresh-water, and marine shells from Holocene deposits. By 



Rev. R. A. BuLLEN, F.L.S., F.G.S 309 



Description of a new species of Vitrea from Greece. By E. A. 



Smith, LS.O. (Fig.) 314 



Descriptions of new forms of Marginellidse and Pleurotomidse. By 



E. R. Sykes, B.A. (Plate XVIL) 315 



On the extension of the genus Macrochlamys to the Island of 



Mauritius. By Lieut. -Colonel H. H. Godwin- Austen, F.R.S. 



(Plate XVIII.) 319 



On the Mollusca procured during the " Porcupine " Expeditions, 



1869-1870. Supplemental Notes, Part II. By E. R. Sykes, 



B.A., F.L.S. (Figs.) 322 



On a small collection of Mollusca from Tierra del Fuego. By 



E. A. Smith, LS.O. (Figs.) 333 



A notice of two Miocene Gastropods from Roumania. By R. B. 



Newton, F.G.S. (Figs.) 340 



Revision of the New Zealand Patellidee, with descriptions of a new 



species and subspecies. By H. Suter. (Figs.) 346 



On the occurrence of Planorbis vorticulus, Troschel, in the Pleisto- 

 cene of England, with notes on some other Pleistocene 



Mollusca. By A. S. Kennard & B. B. Woodward, F.L.S., 



F.G.S 356 



The Conchological Writings of Captain Thomas Brown. By C. D. 



Sherborn 358 



