INDEX. 



455 



Metridium, new species of, 195. 



Microglossa Alecto, on the osteology 

 of, 134. 



Microscope, on a new growing slide 

 for the, 334. 



Mimastra, description of the new ge- 

 nus, 253. 



Mistletoe, on the parasitic nature of 

 the, 222. 



Morch, Dr. O.A.L., on the homology 

 of the buccal parts of the Mollusca, 

 73; on the operculum and its 

 mantle, 117; on the systematic 

 value of the organs employed as 

 fundamental characters in the clas- 

 sification of Mollusca, 385 ; on the 

 limits of the subkingdom Mollusca, 

 411. 



Mollusca, on the homology of the 

 buccal parts of the, 73 ; on the 

 systematic value of the organs em- 

 ployed as fundamental characters 

 in the classification of, 385 ; on the 

 limits of the subkingdom, 411. 



Momaea, description of the new ge- 

 nus, 252. 



Monocesta, new species of, 262, 315. 



Muscicapa parva, note on the capture 

 of, at Scilly, 447. 



Mystomys, on the names of the ge- 

 nus, 425. 



Nadrana, description of the new ge- 

 nus, 250. 



Nealotus, description of the new ge- 

 nus, 283. 



Nematoidea, on the presence of cer- 

 tain secreting organs in, 45 ; on the 

 anatomy and physiology of the, 197- 



Nephila, new species of, 96, 343. 



Nephthya, new species of, 196. 



Nestiuus, new species of, 325. 



Newton, A., on some bones of the 

 Didus nazarenus, 61. 



Notopterophorus, on the early stages 

 of, 162. 



Nyctinomus, new species of, 295. 



Oncideres, new species of, 175. 



Operculum and its mantle, on the, 



117. 



Orcynus alalonga, on the occurrence 

 of, on the coast of Devon, 268. 



Orithyia, new species of, 89. 



Orthoxia, characters of the genus, 

 260. 



Owen, Prof., on the skull of Thyla- 

 coleo carnifex, 130. 



Pachypeza, new species of, 314. 



Pachytoma, characters of the genus, 

 261. 



Palmeria, description of the new ge- 

 nus, 1. 



Paludina, new species of, 255, 428. 



Parisis, new species of, 196. 



Parker, W. K., ou the nomenclature 

 of the Foraminifera, 15 ; on the 

 osteology of Microglossa Alecto, 

 134. 



Parra gallinacea, on the egg of, 70. 



Pasithea, new species of, 338. 



Peridinium cvpripedium, observations 

 on, 270, 399. 



Peritrox, description of the new ge- 

 nus, 313. 



Peters, Dr.W., on the systematic po- 

 sition of Platacanthomys lasiurus, 

 213. 



Petromyzon, new species of, 221. 



Phalangium, on the male generative 

 organs of, 149, 301. 



Philippi, Dr. R. A., on the Chilian 

 "Anguilla,"221. 



Phocaena, new species of, 132, 138. 



Phyllopteryx, on the Australian spe- 

 cies of, 141. 



Plants, on the occurrence of raphides 

 and other crystals in, 115, 331; 

 description of some fossil, 128; 

 on the existence of liquid and solid 

 matters in the trachean vessels of, 

 378. 



Platacanthomys lasiurus, on the sys- 

 tematic position of, 213. 



Plecotus auritus, note on, 301. 



Plesiosaurs, on two new, from the 

 Lias, 352. 



Pleurocrypta, characters of the new 

 genus, 164. 



Podontia, new species of, 403. 



Polyps, on the classification of, 191. 



Primitia, description of the new ge- 

 nus, 415. 



Pristolepis marginatus, note on, 298. 



Procalus, new species of, 261. 



Psammobia, new species of, 431. 



Pterogale, new species of, J2. 



Pycnacautha, description of the new 

 genus, 350. 



Pyesia, characters of the genus, 260. 



Ramsay, E. P., on the Cuckoos of 

 New South Wales, 290. 



Ransom, Dr. W. II., on the nest of 

 the ten-spined Stickleback, 449. 



