.524 



INDEX. 



Sowerby, G. B., on a new species of 

 Tomigerus, 59 ; on two newly dis- 

 covered species of Cyclostoma, 60. 



Sphaeronema, new species of, 371. 



Sphaeropsis, new species of, 374. 



Sphaerozyga, on the British species of, 

 330. 



Sphasus, new species of, 52. 



Spilonota, new species of, 111. 



Sporidesmium, new species of, 459. 



Sporoschisma, characters of the ge- 

 nus, 461. 



Stein, Dr. F., on the nature of the 

 Gregarinae, 429. 



Stilbum, new species of, 465. 



Streptosolen, observations on the ge- 

 nus, 207. 



Strickland, H. E., on the occurrence 

 of Charadrius virginiacus at Malta, 

 40. 



Swan, wild, on a peculiarity of struc- 

 ture observed in the aorta of the, 

 139. 



Syrae, J. T., on some of the rarer 

 plants observed in Orkney, 266. 



Taylor, R., on the wild animals of an- 

 cient Britain, 238. 



Tegenaria, new species of, 52. 



Terebratulae, fossil, examination of 

 Lamarck's species of, 433 ; on the 

 structure of some, 449. 



Termitidse of West Africa, observa- 

 tions on the, 92. 



Tetraploa, description of the genus, 

 459. 



Thompson's, W., Natural History of 

 Ireland, reviewed, 218. 



Thomson, W. T. C, on some Scotch 

 freshwater Algae, 143. 



Toads, way in which they shed their 

 skins, 430. 



Tomigerus, new species of, 59. 



Torrens, H., on popular impressions in 

 India regarding the natural history 

 of certain animals, 512. 



Torula, new species of, 460. 



Townsend, F., on a supposed new spe- 

 cies of Glvceria, 104. 



Trichia, new species of, 367. 

 Trichites, observations on, 343. 

 Trichormus, on the British species o£ 



327. 

 Trigonia, description of the animal of, 



141. 

 Tuburcinia, new species of, 464. 

 Turner, H. N., on the dissection of 



the Paradoxurus Typus and of Di- 



pus iEgyptius, 135. 

 Turner, W., on the way in which toads 



shed their skins, 430. 

 Uredo, new species of, 463. 

 Urolepis, new species of, 131. 

 Van Beneden, P. J., on a new genus 



of Cestoid worm, 42. 

 Vandeae, on the structure of the, 36. 

 Vermicularia, new species of, 378. 

 Veronica, new species of, 47. 

 Voelcker, A., on the watery secretion 



of the leaves and stems of the ice- 

 plant, 171. 

 Vogt, M., on some inhabitants of 



freshwater muscles, 450. 

 Volutella, new species of, 465. 

 Von Buch, L., on the characteristic 



fossils of the chalk formation, 381. 

 Walker, F., on new species of Chal- 



cidites, 125; on the British Aphides, 



14, 269, 388. 

 Wallace's, Mr., journey to explore the 



natural history of South America, 



156. 

 Waltonia, description of the genus, 



474. 

 Weevil, on the employment of tar to 



preserve wheat from the attack of 



the, 236. 

 Westwood, J. O., on the large African 



species of nocturnal Lepidoptera, 



290, 395 ; on some new species of 



Paussidae, 493. 

 Wheat midge, observations on some 



specimens of, 152. 

 White, A., on apparently new species 



of Aptera, 50. 

 Zoological Societv, proceedings of the, 



48, 133,224,290,395,501. 



END OF THE FIFTH VOLU 



PRINTED BY RICHARD AND JOHN E. TAYLOR, 

 RED LION COURT, FLEET STREET. 



