INDEX. 



471 



Moore, T. J., on the occurrence of 



Lagenorhynchus albirostris at the 



mouth of the Dee, 268. 

 Mooruk, on the habits of the, 380. 

 Mopsea, new species of, 299. 

 Miiller, Dr. F., on the transforma- 

 tions of the Porcellanae, 4/. 

 Murray, A., on Crocodilus frontatus, 



222" 

 Mas, new species of, 132. 

 Muscicapa parva, capture of, in Great 



Britain, 228. 

 Nanina, on the Indian species of, 81. 

 Nanophyes, new species of, 218. 

 !Neelaps, description of the genus, 24. 

 Neill, C. O', on the appearance of 



cotton-fibre during solution and 



disintegration, 466. 

 Nesiarchus, characters of the new ge- 

 nus, 64. 

 Norman, Rev. A. M., on Acantho- 



leberis, a genus of Entomostraca 



new to Great Britain, 409. 

 Nymphon, new British species of, 



464. 

 Onoba, new species of, 348. 

 Ophiura, new British species of, 311. 

 Opisthoporus, new species of, 322. 

 Owen, Prof., on Archeopteryx ma- 



crurus, 122. 

 Pallene, new British species of, 463. 

 Parascidia, new British species of, 



172. 

 Parker, W. K., on the Foraminifera, 



91 ; on the osteology of the genera 



Pterocles, Syrrhaptes, Hemipodius, 



and Tinamus, 300. 

 Parthenogenesis oftheBemhardCrab, 



on the, 460. 

 Pasteur, L., on the production of 



fermentation by the presence of 



Infusoria, 313. 

 Perigonymus, new British species of, 



10. 

 Perileptus, new species of, 216. 

 Perry, W. G., notice of the late, 392. 

 Peters, Dr. W., on a new Phyllodac- 



tylus, 152; on a new Pteropus, 



231. 

 Phascolomys, on some species of, 457- 

 Phoca foetida, capture of, at Aberjst- 



with, 309. 

 Phrynobatrachus, characters of the 



genus, 135. 

 Phylloilactylus, new species of, 152. 

 Pitta, new s{)ecies of, 133. 



Planorhis crista, note on, 462. 

 Plants, on the raphides of British, 13, 



263 ; on the contractile tissue of, 



188 ; on the laticiferous vessels of, 



402. 

 Platanista, on the change in form of 



the teeth of, 464. 

 Platj-plectrum, description of the ge- 

 nus, 27. 

 Plectana, new species of, 38. 

 Pleurodyctium problematicmn, on the 



true nature of, 390. 

 Pleurosigma, on the structure of the 



valves of, 351. 

 Pcecilostolus, description of thegenus, 



25. 

 Polyclinum, new British species of, 



169, 

 Porcellanae, on the metamorphoses of 



the, 47. 

 Priacanthus, new species of, 71. 

 Primnoa, new species of, 299. 

 Pseudochromis, new species of, 139. 

 Pseudomuraena, new species of, 59. 

 Pseudophycis, new species of, 116. 

 Pterocles, on the osteology of, 300. 

 Pteropus, new species of, 231. 

 Ptilonopus, new species of, 58. 

 Pycnogonoidea, new species of, 463. 

 Eaphides, notes on the, of British 



plants, 13, 263. 

 Reeve, L., on Planorbis crista, 462. 

 Reptiles, descriptions of new, 134. 

 Rhinochetus jubatus, on the habits 



and affinities of, 227. 

 Rhizopods, observations on some, 



434. 

 Rhombosolea, new species of, 117. 

 Rhombus cristatus, notes on, 238. 

 RhjTichonella, new species of, 100. 

 Roberts, Dr., on the application of 



magenta dye in microscopical in- 

 vestigations, 152. 

 Rominger, Dr., on the true nature of 



Pleurodyctium problematicimi,390. 

 Roval Socie^, proceedings of the, 



122, 297. 

 Saururus cemuus, on a remarkable 



form of rotation in the pith-ceUs 



of, 150. 

 Schaeffer, Dr. G. C, on a remarkable 



form of rotation in the pith-ceUs of 



Saururus cemuus, 150. 

 Schaiim, Dr. H., on the composition 



of the head, and on the number of 



abdominal 8^;ments, in insects,! 73. 



