468 



INDEX to VOL. IV. 



Achkta, new species of, 221. 



Acinetae, on the conversion of, into 

 Vorticellae, 3. 



Acorynus, new species of, 331. 



Acrydium, new species of, 222. 



Actiniae, on the means by which the, 

 kill their prey, 227 ; on digestive 

 power iu the, 275. 



Aedon galactotes, on the occurrence 

 of, in South Devon, 399. 



Agabus, new species of, 120. 



Agaricus, new species of, 284. 



Alhnan, Prof., notes on the hydroid 

 Zoophytes, 48, 137, 367. 



Amazilia, new species of, 96. 



Amphioxus lanceolatus, observations 

 on, 463. 



Auaulax, characters of the new genus, 

 116. 



Anchomenus, new species of, 118. 



Animals, on some of the lower marine, 

 463. 



Anolis, new species of, 212. 



Anomala, new species of, 220. 



Antelope, notice of a new, from Cen- 

 tral Africa. 296. 



Anthribida?, on some new, 327, 431. 



Apatenia, description of the new ge- 

 nus, 434. 



Aprysiopterus viridis, on the habits of, 

 239. 



Apolecta, description of the new ge- 

 nus, 431. 



Aptandra, on the species of, 358. 



Aneccrus, new species of, 438. 



Atta. new species of, 375. 



Baird, Dr. W., on a new species of 

 Taenia, 240; on several species of 

 Entomostracous Crustacea from 

 Jerusalem, 280. 



Baly, J. S., on new genera ami spe- 

 cies of Phvtophagous insects, 55, 

 124, 270. 



Bark-lice, on the reproduction of the, 

 321,411. 



Bartlett, A. D., on the artificial pro- 

 pagation of salmon, 158. 



Basitropis, new species of, 432. 



Bats, new species of, 14 6. 



Bennett, G., notes on the " Mooruk," 

 303; on the habits of Mycteria 

 australis, 458. 



Benson, W. II., on the shell and ani- 

 mal of Ilybocystis, with notes on 

 other living shells from India and 

 Burmah, 90 ; on the animals of 

 Rhaphaulus Chrysalis, Pupina ar- 

 tata, Otopoma clausum, Helix 

 Achatina, and H. pyla'ica, 93; on 

 the opercula of several species of 

 Megalomastoma, 238 ; on the ge- 

 nus Camptonyx, 318. 



Berkeley, Rev. M. J., on North Ame- 

 rican Fungi, 284. 



Blackwall, J., on some newly-disco- 

 vered spiders, 255. 



Books, new: — White's Instructive Pic- 

 ture Book, 62 ; Explorations and 

 Surveys to ascertain the most practi- 

 cable Route for a Railroad from the 

 Mississippi to the Pacific Ocean, 

 298 ; Carpenter's Animal Physio- 

 logy, 299 ; Sowerby's Illustrated 

 Index of British Shells, 376 ; Ten- 

 ncnt's Ceylon, 450. 



Bornella, new species of, 269. 



Brachypeplus, new species of, 356. 



Brauwers, M., on the cellular forma- 

 tions, the growth, and the exfolia- 

 tion of the radical and fibrillar ex- 

 tremities of plants, 201. 



Bronn, H. G., on the laws of evolu- 

 tion of the organic world during 

 the formation of the crust of the 

 earth, 81, 175. 



Bulimus acutus, note on, 238. 



Calothorax, new species of, 97- 



Camptonyx, on the genus, 318. 



Camptorhinus, new species of, 218. 



Cantharellus, new species of, 293. 



Carter, H. J., on Dracunculus and 

 microscopic Filaridae, 28, 98. 



Casuarius Bennettii, notes on, 303. 



Catharus, on a new species of, 400. 



Cathedra, on the species of, 361. 



Cellulose, on the supposed existence 

 of, in starch-grains, 241. 



Chermes, on the reproduction of, 321, 

 411. 



Chilocorus, new species of, 219. 



Chrysochus, new species of, 125. 



Chrysolampra, characters of the new 

 genus, 126. 



Clava, new British species of, 369. 



