

INDEX. 



Campylodiscus, Surirella and Cy- 

 toraapleui-a, 1 ; on fossil Diatoma- 

 cefe, 499. 



Sovitlium, characters of the genus, 325. 



Sowerby, J. De C, on Victoria Regia, 

 15(). 



Spatangidffi, on some new genera and 

 species of, 130. 



Spliicnia, monograph of, 420. 



Spha;ria, new species of, 187- 



Spiders, hst of, captured by F.Walker, 

 Esq., 157 ; catalogue of British, 

 with remarks on their structure, 

 fimctions, &c., 256, 396, 446 ; on 

 the bird-devoiuing habit of a spe- 

 cies of, 427. 



Spongiae, on the classification of the, 

 190. 



Stenogramme, on the tetrasporic fruit 

 of the genus, 481. 



Stomatella, new species of, 219. 



Stomatelhdffi, on an arrangement of 

 the, 218. 



Stoniatia, characters of the genus, 221 . 



Streblopteria, description of the new 

 geuus, 170. 



Strombidte of the oolites, on the, 306. 



Succinea, new species of, 262, 336. 



Succinea oblonga, occunence of, in 

 Ireland, 501 . 



Surirella, on the British species of, 7- 



Syrrhaptes, new species of, 339. 



Tautoga, new species of, 286. 



Taylor, Dr., ou Trilobitcs, 78. 



TeUina, new species of, 69. 



Telhnites, new species of, 51. 



Tellinomya, new species of, 56. 



Tessar.iudra, on the genus, 197. 



Tethya, on the anatomy of the genus, 

 370. 



Thalasscma Neptimi, on the occur- 

 rence of, 156. 



Thomisus, on theBritish speciesof, 448. 



Thompson, W., ou Athanas nitescens, 

 346 ; on Gonopla,x angulata, 500, 

 501. 



Thompson, W., of Belfast, additions 

 to the fauna cf Ireland, 501. 



Thomson, J., on the effects of light 

 and heat on Gentiana vema, 498. 



Thomson, W., on the dentition of 

 British Puhnouifera, S6. 



Threpterias, description of the genus, 

 284. 



Thylacinus cynocej)halus, observa- 

 tions on, 338. 



Tomichia, on the genus, 377- 



Trachy derma, new species of, 396. 



Trichogramma, new species of, 212. 



Trigonalys, new species of, 28. 



Trigonopsis, new species of, 31. 



Trilobites, remarks on, 78. 



Trip3'lus, new species of, 132. 



Triuriacese, on the family of, 323. 



Trochus, new species of, 49. 



Tuber, new sjiecies of, 183. 



Turbo, new species of, 49. 



Tussac grass, on the growth of the, 152. 



Tyler, Lieut., on the Iguana of Sta 

 Lucia, 494. 



Vertebrate skeleton, on the morpho- 

 ^ log>- of the, 139. 



Verticillium, new species of, 101. 



Victoria Regia, observations on, 156. 



Vmcgar-plant, on the, 7G- 



Voelcker, Dr. A., on the composition 

 of the ash of Armeria maritima, 266. 



Walker, F., list of spiders captured 

 bv, 157 ; on some new species of 

 Chalcidites, 210. 



Walton, J., on the British species of 

 Cureulionidre, 310. 



Westwood, J. O., ou some new spe- 

 cies of exotic homojjterous insects, 

 207 ; on two new species of Paus- 

 sidee, 491. 



White, A., on some apparently new 

 species of longicom Coleoptera, 70 ; 

 on two species of Crustacea, 421 ; 

 ou various species of Rotifera, 424. 



Wright, Dr. T., on the geology of the 

 north-west coast of the Isle of 

 Wight, 14; on the Strombidie of 

 the oolites, 306 ; on the freshwater 

 and marine formations of the Hamp- 

 shire basin, 433. 



Zea Mays, observations on, 489. 



Zonites, new species of, 66. 



Zoological Society, proceedings of the, 

 64, 138, 218, 331, 412, 492. 



END OF THE SEVENTH VOLUME. 



PRINTED BY RICHARD TAYLOR, 

 RED LION COURT, FLEET STR.EKT. 



