vi CONTENTS. 
Page 
XXIX. Notesonthe Pale oz0ic Bivalved Entomostraca.—No. XVI. 
By I. Rurrerr Jonus, F.R.S., F.G.S., &c. (Plates VI. & IX.) .... 243 
XXX. On Guard-Polyps and Urticating Cells. By Dr. R. von 
WEEN NIE ELD: 40 tocsreis “(a4 tate tete ohareiete bere atc teae ai ete loners tote eae 250 
XX XT. On a Case of Commensalism of a Caranv anda Crambessa. 
By Mi AGODERROY LGN Bi ois, siege s, casc/eys e2oga:cee ieee ae te ee ee 264 
New Books:—Minute Structure of the Central Nervous System of 
certain Reptiles and Batrachians of America. Illustrated by 
ermanent Photomicrographs by Joon J. Mason, M.D.— 
Temoirs of the Geological Survey of India. Paleeontologia 
Indica, being Figures and Descriptions of the Organic Remains 
procured during the progress of the Geological Survey of India. 
Published by order of his Excellency the Governor-General of 
Indiain Council. Series x. Indian Tertiary and post-Tertiary 
Vertebrata. Vol. I]. Part 1. Siwalik Rhinocerotide. Part 2. 
Supplement to Siwalik and Narbada Proboscidia, with 11 plates: 
1881. Part 3. Siwalik and Naybada Kquidee, y with 5 plates: 
1882, Part 4. Siwalik Camelopardalidee, with 7 plates : 1883. 
Part 5. Siwalik Selenodont Suina &c., with 3 plates: 1883. By 
R, LypEKKER, B.A., F.Z.8., Geological Survey of India... 270—274 
Note on the Intelligence of the American Turret-Spider, by Dr. 
McCook ; Complete Biological Evolution of the Elm-tree Aphis 
( Tetraneura ulmi, Aut.), by M. J. Lichtenstein ; Elevated Coral 
Reefs of, Cuba, by “W/O: Crosby e.g. do -guce cc cdete ce 281—283 
NUMBER LXXI. 
XXXII. Contributions to Micro-Paleontology.—On Stenopora 
Howsti, Nich., with Notes on Monticulipora? tumzda, Phill., and 
Remarks on Tabulipora Urvi, Young. By H. ALLEYNE NICHOLSON, 
M.D., D.Se., Regius Professor of Natural History in the University 
of Aberdeen. (Plate ee) iin lohsieanecs, sateen Gyalnya alee ero ge tee tere ie as ee 285 
XXXII. Neuroptera of the Hawaiian Islands.—Part IL. Plani- 
pennia, with General Summary. By Ropertr McLacuuay, F.R.S. 
(CdGhcia  bcROCR See Rane ian merino ano oceGc.so000.000.0000 - 298 
XXXIV. On the Answerable Divisions of the Brain in Vertebrates 
and Invertebrates. By Prof. OwrEn, C.B., F.RS., &............:. 308 
XXXV. Remarks on the Nyctisaura. By G. A. BoULENGER .. 308 
XXXVI. Contributions to our Knowledge of the Spongida. By 
H. J. Canter, F.R.S. &c. (Plates XI., XI., XJIT., & XIV.) .... 308 
XXXVIT. Spicules of Spongilla in the Diluvium of the Altmuhl 
Valley, Bavaria. By H. J. Carrer, F.R.S. &c. (Plate XIV.) .. 829 
XXXAVUI. Descriptions of two new Species of Asterotdea in the 
Collection of the British Museum, By F, Jerrrey Brun, M.A, ., 333 
