Vili CONTENTS. 
Page 
XLVI. Note on the Identity of certain Species of Diurnal Lepido- 
ptera. By ARTHUR GARDINER BUTLER, F.Z.S........ceccscnseceeseees 435 
XLVII. Notule Lichenologice. No VI. By the Rev. W. A. 
LeicutTon, B.A., F.L.S.—Dr. Ernst Stizenberger on the Saxicolar 
SPECIES OL OPEGTODNG —....ceodncenesenicacasmonenoniaeeeieaaeenmhs vscsmmdesewaess 437 
XLVIII. Observations on the ‘‘ Prodrome of a Monograph of the 
Pinnipedes, by Theodore Gill.” By Dr. J. E. Gray, F.R.S., V.P.Z.S. 444 
XLIX. On the Developmental History of the Nematode Worms. 
BYR UDOLPH: UBUCKART 4 <0. c0ediyccenetasascce-«-fcer tes teepanss eae 447 
L. Note on some new Facts in Botanical Geography. By EpMonp 
IBOTES DUR © ions ctccse sorcdosenednermencs-t-i-setakh oath seek auauriseeerciee dae 464 
New Book :—The Geology and Scenery of the North of Scotland; 
being Two Lectures given at the Philosophical Institution, Edin- 
burgh. With Notes and an Appendix. By James Nicol, 
ARIS AES PAGS. 805. 0 ocecesnosinas+>eecenenent smaseteuscnsoansanenenees 467 
Greyhounds run Wild; On the Perforating Bryozoa of the Family 
Terebriporidz, by P. Fischer; On the Systematic Position of the 
Lepidosirens, by Professor W. Peters ; Remarks on some Bones 
of the Dodo (Didus ineptus) recently collected in the Mauritius, 
hyeAlph; Milne-Pidwards i. c205% «scsscrcesucedaguissasaeeanenne 47\—473 
PLATES IN VOL. XVII. 
Piate I. Asexual Reproduction of Cecidomyide Larve. 
II. New British Species of Caradina. Sphzroma vastator. 
III. Ziphiorrhynchus eryptodon. 
IV. Germination-curves at different Degrees of Constant Tempera- 
ture. 
V. New Species of Trichopterygide. 
VI. Ziphiorrhynchus cryptodon. 
VII. Structure of the Eye of the Mackerel. 
VIN | Anatomy and physiology of Trichodina pediculus. 
Erratum :—In page 286, for Euodia read Enodia. 
