vi CONTENTS. 
XXXI. On the Ultimate Structure of Marine Sponges. By H. J. 
COE FER QA eoo ere er nh ee ERESEERET LONE 
Page 
329 
marina On the Use of the Term “Homology.” By E. Ray 
LANKEST 942 
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the Skeleton of Dioplodon sechellensis in the Aus- 
XXXIII. On 
tralian Museum at Sydney. By Dr. J. E. Gray, F.R.S. &. ...... 343 
New Book :—An Elementary Course of oe Heater? Physio- 
logical, and Systematic, by Professor 
Edition. Revised, and in part en by Mawi T. Masters, 
BED EB, des odor cx e tenebre PERIOD TERES 344 
eae of a new Species of Humming-bird of the Genus Chryso- 
, by D. G. Elliot, F.L.S., F.Z.S., &e.; Aros Cliftoni, by 
Dr > E. Gray, F.R.S.; Note on the Branched — — of Squa- 
mulina scopula, by . Carter, F.R.S. pecies 
of Land- Planarice from How rneo, by W. C. Matos; NS lar is 
Barbet of the Himala of a Name!, by Robert 
hoe, F.Z.S.; Pre ruling Notice of a Zi bioid Whale, probably 
Berardius Ar nuxit, by Julius Haast, a P ; On 
evolved by Tata Animals, especially Insects, by Moea 
Girard 346— 
» 9*4 »ve** 9 M A E Vs N N Ms A UA E AE A RE T 
NUMBER XXXV. 
n the Larval State of Molgula; with Meer: gea of 
ALB 
351 
XXXIV. O 
several new Species of Simple Ascidians. By xv HANCOCK, 
FLS. 353 
PALAT el ee E E A E L E E Ole ee 9 A E E "ru e» tu 
V. On iip enn Acmella ( A oen tersum, Bens.), Tricula, 
XXX 
and Cyathopoma milium. By WiLLiAM T. BLANroRp, F.G.S., 
C.M.Z.S 368 
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XXXVI. On the Genus Climacograpsus ; with Notes on the British 
Species of the Genus. By Henry ALLEYNE NicHorsoN, M.D., 
DSe, MA, FR. 
&c., Lecturer on Natural History in the 
870 
Extra-Academical School ef Ediumh 21... an ies Sate ees 
CXXVII. On an existing Coral closely HYS to the Palzozoic 
Genus Favosites; with Rema rks on the Affinities of the Tabwulata. 
VILLE ‘Kent, F.Z.S., F.R.M. zi of the Geological Depart- 
B Sa 
aes British Museum. (Plates IVI E AVL; ooo ees ts 384 
XXXVIII. The Geographical Distribution of the Cetacea. By 
De. J: E GRAY, ERS Gee san ee 
387 
Synonymical Notes on North-American Coleoptera. ie 
XXXIX. 
By Joun L. LzcowrE, M D., Philadelphia .........-. eee 
XL. Note on ZElians Wart-Hog. By P. L. ScrarER, M.A. c. 
PRDQERS. I4) o te du ITE P. 
