al CONTENTS. 
Page 
XXX. Carcinological Investigation on the Genera Pemphix, Gly- 
phea, and Argosternus. By T. C. WINKLER...........1.+.-+--+ 306 
XXXI. List of Lepidoptera recently collected by Lieut. Alfred 
Carpenter at Yedo and Od-Sima. By Arruur G. Burier, F.LS., 
BAAS OCCs, ip Ta.o clevsnein: t's 2snteavelesy Bhd foeg © oe ae ae batts cold 
XXXII. The Pelagic Fauna of Freshwater Lakes. By Prof. F. 
PAG EMOREIL © oy) n'e sais hiv 6 Seng as) og 26 506 tia dee ge elon iete a tee 320 
XXXIII. Description of a new Genus and Species of Frogs of the 
Kamily eyhde. By Go. BOULENGER. 5.22.1. 0-2 326 
On the Sexuality of the Common Oyster (Ostrea edulis) and that of 
the Portuguese Oyster (O. angulata), artificial Fecundation of 
the Portuguese Oyster, by M. Bouchon-Brandely ; On a Synthetic 
Type of Annelid (Anoplonereis Herrmanni) a Commensal of 
Balanoglossus, by M. A. Giard ; Orthocynodon, an Animal re- 
lated to the Rhinoceros, from the Bridger Eocene, by Wm. B. 
Scott and Henry F. Osborn; On the Structure of the Head of 
Archeopteryx, by W. Dames; On the Innervation of the Mantle 
of some Lameilibranchiate Mollusca, by M. L. Vialleton. . 328—336 
NUMBER LIX. 
XXXIV. Preliminary Notice of Cephalodiscus, anew Type allied to 
Prof. Allman’s Rhabdopleura, dredged in H.M.S. ‘Challenger’ By 
Prof. Mntosu, E.VRiS. fi. 05. 0c. wo 0 de osjo eee Sot 307 
XXXV. Additional Notes on the Trochammine oe the Lower 
Malm of the Canton Aargau, including Webbina and Hormosina. 
By Dr RupoLtr HausiEr, U:G.S. &c. (Plate XV.) see eee 349 
XXXVI. Notes on the Paleozoic Bivalved Entomostraca.—No. 
XV. A Carboniferous Primtia from South Devon. By Prof. T, 
RUPERT JonEs, FIRS, W.G.S. 2 ac. isace ase eee 358 
XXXVII. Note on Rhacodes inscriptus, Koch, and Armadillo offi- 
cmalis, Duméril, terrestrial Isopoda. By the Rey. A. E. Eaton, 
MA ise sec bis oe le sierere cievecayelele'e wipers a oie Ore eleuels (ouekenet ee 360 
XXXVIII. Spermatozoa, Polygonal Cell-structure, and the Green 
Colour in Spongila, together with a new Species. By H. J. CarTER, 
BOR.S.&e. (Plate XV.) .. i.e ees ee cn 362 
XXXIX. Descriptions of new Species of Lepidoptera from 
Tenasserim. By ArntHur G. Butumr, F.LS., F.Z.8., &e......... 3872 
XL. On the Species of Ocypoda in the Coilection of the British 
Museum. By Epwarp J. Mrmers, F.L.S., F.Z.S., Assistant in the 
Zoological Department. (Plate XVING)N ao... 5 sce 376 
XLI. Embryogeny of the Bryozoa; an Attempt at a General 
Theory of their Development, founded upon the Study of their Meta- 
morphoses,” (By Dr. JuLEs BARROIS@0.,. 1.50: eo 388 
