472 



INDEX. 



Smith, E. A., on a new species of 

 Helix, 159 ; on new species of 

 shells from Vancouver Island, 286; 

 on new species of shells from Uru- 

 guay, 319; on a new species of 

 Turbo, and on the occurrence of 

 Bossia Owenii on the coast of 

 North Wales, 397 ; on new shells 

 from Lake Tanganyika, 425. 



Sollas, W. J., on the structure and 

 affinities of the genus Proto- 

 spongia, 238 ; on the flint nodules 

 of the Trimmingham Chalk, 384, 

 437. 



Somera, new species of, 67. 



Spirogyra, on misdirected efforts to 

 conjugation in, 207. 



Sponge-spicules, on fossil, 209, 384. 



Spongida from the Gulf of Manaar, 

 35, 129; new, 211, 256, 386. 



Starfishes of the Gulf of Mexico, on 

 the, 326. 



Stebbing, Eev. T. E. E., on Gastro- 

 saccus spinifer, 114, 328. 



Steganoporella, new species of, 380. 



Stelletta, new species of, 137. 



Stephanostoma, characters of the 

 new genus, 464. 



Streptaxis, new species of, 429. 



Stromatopora, on tabulpe in the stel- 

 late venations of, 244. 



Stromatopora dartiugtoniensis, on the 

 structure of, 339. 



Suberites, ntw species of, 52, 256. 



Subulina, new species of, 428. 



Syrnolopsis, characters of the new 

 genus, 426. 



Tanaorhinus, new species of, 128. 



Tanysiptera, new species of, 231. 



Tetragonopterus, new species of, 12. 



Thalassodes, new species of, 2l4. 

 Thalera, new species of, 219. 

 Themeropis, new species of, 177. 



Thomas, 0., on Bats from Old Cala- 



bar, 164 ; on a new species of 



Arvicola, 322. 

 Thomson, G. M., on new species of 



Crustacea, 1. 

 Thoosa, new species of, 56. 

 Tisiphonia, new species of, 138. 

 Traquair, Dr. E. H., on the Platy- 



sornidse, 97. 

 Trochus, new species of, 288, 320. 

 Trygon, new species of, 8. 

 Trypetes, new species of, 180. 

 Turbo, new species of, 397. 

 Twelvetrees, W. H., on Cliorhizodon 



orenburgensis, 167. 

 Tyana, new species of, 64. 

 Unio, new species of, 429. 

 Ilrapteryx, new species of, 120. 

 Vaillant, L., on the oviposition of 



ITeurodeles Waltlii, 244. 

 Vayssiere, A., on the metamorphosis 



of Prosopistoma, 252. 

 Vesperugo, new species of, 165. 

 Villot, A., on the organization and 



development of the Gordii, 169, 



466. 

 Vine, G. E., on the Diastoporidae, 



2-10; on the Vincularidae, 243. 

 Wallich, Dr., on the formation of 



the Flints of the Chalk, 457. 

 Waterhouse, C. O., on some new 



Coleoptera, 92, 399, 461. 

 Waters, A. W., on the genus Hete- 



ropora, 156; on the term Bryo- 



zoa, 157. 

 White, C. A., on the antiquity of 



certain subordinate types of fresh- 

 water and land Mollusca, 247. 

 Wilson, E. B., on the early stages of 



some polychaetous Annelides, 407. 

 Wood-Mason, J., on the species of 



Choeradodis, 160. 

 Worm, on the anatomy of a new 



parasitic, 409. 

 Yoldia, new species of, 289. 



END OF THE SIXTH VOLUME. 



PRINTED BY TAYLOR AND FRANCIS, 

 RED LION COURT, FLEET STREET. 



