506 



INDEX. 



Pseudocyclops, new species of, 128. 

 Pseudogobio sinensis, note on, 247. 

 Pseudorhombus, new species of, 379. 

 I'ycnog-onida, on a genus of, 342. 

 Ifadiata, on spontaneous division in 



the, 323, 391. 

 Rats, notes on the, 416. 

 Rhinaria, new species of, 278. 

 Rhodopsis, new species of, 313. 

 Rhopalorhynchus Kroyeri, descrip- 

 tion of, 342. 

 Robertson, D., on marine Copepoda 



taken in the West of Ireland, 12(3. 

 Royal Society, proceedings of the, 



164. 

 Saint-Cyr, M., on the scolex of 



Taenia mediocanellata, 428. 

 Salius, new species of, 254. 

 Scaphirhynchus Fedtschenkoi, de- 

 scription of, 269 ; observations on, 



277. 

 Sciurus, new species of, 265. 

 Scombrocottus salmoueus, on the 



identity of, with Anoplopoma 



fimbria, 74. 

 Sebastes, new species of, 377. 

 Semper, G., on the migi-ations of 



Danais Archippus, 42o. 

 Sericophorus, new species of, 405, 

 Shells, on unequal bivalve, 76, 184 ; 



new, 426. 

 Sieboldia, on a specimen of, from 



Shanghai, 188. 

 Smermus, new species of, 383. 

 Smith, F., on new species of fossorial 



Hyraenoptera, 49, 99, 253, 291, 



402. 

 Smith, S, T., on the Megalops stage 



of Ocypoda, 186. 

 Solenostoma, description of the new 



genus, 141. 

 Soridia and Pholeophilus, on the 



identity of, 147. 

 Sphargis coriacea, on the skeleton of, 



Sphex, new species of, 291. 



Sponges, new, 17, 349, 463 ; on the 

 siliceous spicules of, 203 ; from 

 Natal, 264; from Ceylon, 266; 

 observations on, 488. 



Stearns, R. E. C.,orf'the conchology 

 of portions of the Atlantic and 

 Pacific coasts of N, America, 185. 



Stebbing, Rev. T. R. R., on a Sphae- 



romid from Australia and Arctu- 



ridae from South Africa, 95. 

 Stenhomalus, new species of, 155. 

 Stenodryas, characters of the new 



genus, 153. 

 Stenosmylus, new species of, 38. 

 Stenygrinum, characters of the new 



genus, 154. 

 Steroma, new species of, 221. 

 Sti-omatopora, new species of, 89. 

 Swinlioe, R., on three new species of 



birds, 373. 

 Syarbis, new species of, 238. 

 Sybra, new species of, 318. 

 Syngnathus, new species of, 380. 

 Synocladia, on a new species of, 189. 

 Tachytes, new species of, 57. 

 Taenia mediocaneUata, ou the scolex 



of, '128. 

 Telebasis, new species of, 35. 

 Tentegia, characters of the new 



genus, 284. 

 Thalestris, new species of, 135. 

 Thelvphonus, on the Indian species 



of," 114. 

 Thorell, Prof. T., on the necessity 



of a common language in natural 



science, 268. 

 Thi'anius, new species of, KXS. 

 Toi-pedo, capture of a specimen of, ott' 



Portland, 187. 

 Tortoises, notes on, 109, 156 ; on the 



form of the bones in the sternum 



of the young, 319. 

 Toxabramis, description of the new 



genus, 249. 

 Toxotus, new species of, 193. 

 Trachypterus arcticus, note on, 77. 

 Trachypus, new species of, 107. 

 Trigonopsis, new species of, 54. 

 Trionychidie, on the, 156. 

 Trochilidfe, on a new genus of, 429. 

 Trypoxylon, new species of, 99. 

 Turdus, new species of, 374. 

 Tychreus, new species of, 286. 

 Uromys, new species of, 418. 

 Ursus euryrhinus, note on, 267. 

 Walden, A. Viscount, on new species 



of Asiatic birds, 487. 

 Wood-Maaon, J., on Nephropsis 



Stew-arti, 59 ; on a new genus and 



species of Pycnogonida, 342; on 



certain species of Phasmidfe, .347. 

 Xylotrechus, new species of, 200. 



END OF THE TWELFTH VOLUME. 



PRINTED BY TAYLOR AND FRANCIS, 

 RED I.IOX COVET, FLEET STREET. 



