472 



INDEX. 



Salmon, on the artificial propagation 

 of, 158. 



Salter, J. W., on the occurrence of 

 Pteraspis in the Lower Ludlow 

 Rock, 44. 



Saxicava rugosa a Byssus-spinner, 80. 



Schultze, M., on the electrical organs 

 offish, 46 L 



Sclater, P. L., on two species of Ant- 



. birds, 151 ; on new species of Ame- 

 rican Parrots, 224 ; on new species 

 of American Ant-Thrushes, 239 ; 

 on a new species of Catharus, 400. 



Scotophilus, new species of, 148. 



Scymnus, new species of, 219. 



Sipalus, new species of, 218. 



Sisyphus, new species of, 219. 



Sitophilus, new species of, 219. 



Smith, J. P. G., on a living Octopus, 

 144. 



Snake, on a new. genus of West Afri- 

 can, 161; on a new British, 317, 

 400. 



Sphseridium, new species of, 352. 



Sphaerodactylus, new species of, 215. 



Sphenophorus, new species of, 218. 



Spiders, descriptions of new, 255. 



Spio, on the development of, 465. 



Starch-grains, on the supposed exist- 

 ence of cellulose in, 24 1 . 



Steirodon, new species of, 222. 



Stenolarapra, characters of the new 

 genus, 127. 



Stilodes, new species of, 59. 



Suffolk, W. T., description of a col- 

 lecting basket for the sea-side, 157- 



Tffinia, new species of, 240. 



Textrix, new species of, 258. 



Theridion, new species of, 259. 



Thomson, Prof. W,, on the embryo- 

 logy of Comatula rosacea, 64. 



Thvlacoleo Carnifex, on a large skull 

 of, 63. 



Tiphia, new species of, 376. 



Tomes, R. F., on new species of Bats, 



146. 

 Tomopteris, note on, 464. 

 Tribalus, new species of, 356. 

 Tropideres, new species of, 220. 

 Truxalis, new species of, 222. 

 Tubularia indivisa, on the develop- 

 ment of, 48. 

 Typophorus, new species of, 128. 

 Urolabes, new species of, 33. 

 Vegetable ovule, on the development 



of the, called ' anatropous,' 12. 

 Vegetable parasites, on the frequent 



occurrence of, in the hard struc- 

 tures of animals, 300. 

 Victoria Regia, on the anatomy of, 



228. 

 Voluta mamilla, description of the 



adult state of, 306. 

 Vorticellse, on the metamorphoses of 



the, 1. 

 Walker, F., on some undescribed 



Ceylon insects, 217, 371. 

 Waller, Dr. A., on the means by which 



the Actiniae kill their prey, 227. 

 Wollaston, T. V., on Coleopterous 



Insects from the north of China, 



430. 

 Woodward, S. P., note on Cyclostoma 



articulatum, 320. 

 Wright, T. S., on Hydroid Zoophytes, 



174. 

 Xenocerus, new species of, 328, 

 Zoanthus Couchii, observations on, 



152. 

 Zoological Societv, proceedings of 



the, 144, 303, 377, 458. 

 Zoophytes, notes on hydroid, 48, 137» 



174, 367; with pinnated tentacles, 



on the arrangement of, 439. 

 Zygirno/des, description of the new 



genus, 328, 



END OF THE FOURTH VOLUME. 



PRINTED BY TAYLOR AND FRANCIS, 



RED LION COURT, FLEET STREET. 



