488 



INDEX. 



Royal Society, proceedingsof the,289. 

 Sagmatonhina, description of the new 



genus, 278. 

 Salmon, on the artificial breeding of, 



471. 

 Sclater, P. L., on two new species of 



Tsenioptera, 213. 

 Scolanthus, description of the genus, 



Scutus, monograph of the genus, 280. 



Shell-fish, on the habits of bivalve, 

 415. 



Shells, new, 48, 90, 108, 139, 142, 

 1 49, 1 50, 1 99, 280, 283, 452 ; on some 

 genera of, established by Link, 448. 



Siphonaria, on the teeth of, 333. 



Siphonophora, on the mode of re- 

 production and development in, 



Sipunculus, new British species of, 

 125. 



Spadix, characters of the new genus, 

 125, 386. 



Spadix purpurea, occurrence of, 365. 



Sphaeridiidae, monographical synopsis 

 of the British, 73. 



Stephens, H. O., on blood rain (Pal- 

 mella prodigiosa, Mont.), 409. 



Straparoilus, new species of, 194. 



Streptaxis, new species of, 90. 



Succinea, new species of, 139. 



Sun-columns, notices of, 70. 



Sutoria, new species of, 214. 



IVnioptera, new s])ecies of, 213. 



Tailor-bird, species of new, 214. 



Tedinia, description of the new ge- 

 nus, 150. 



Templer, W. F., on the occurrence of 

 Eucratea chelata, 149. 



Testacellus, on the teeth of, 331,478. 



Thalotia, new species of, 203. 



Thompson, W., on the time of spawn- 

 ing of British Crustacea, 66; on some 

 new species of British Crustacea, 

 110. 



Thuret, G., on the fecundation of the 

 Fucacese, 64. 



Trccul, A., on the structure of the 

 leaves of palms, 27. 



Trigouia, new species of, 225. 



Trimesurus, new species of, 391. 



Tritons, on the British, 369. 



Trochidffi, new species of, 142, 199. 



Trout, on the artificial breeding of, 



471. 



Tmncatella, on the British species of> 

 4. 



Tulasne, L. R., on the germination of 

 the spores of the Uredines, 221. 



Turner, H. M., jun., on the change of 

 colour in a chamaeleon, 292 ; on 

 the arrangement of the Edentate 

 Mammalia, 348. 



Uredines, on the germination of the 

 spores of the, 221. 



Vegetable and animal organisms, on 

 preserving the balance between, in 

 sea water, 319. 



Vegetation, experimental researches 

 on, 68. 



Velutina, new species of, 283. 



Ville, G., experimental researches on 

 vegetation, 68. 



Virchow, M., on the occurrence of 

 cellulose in the human body, 481. 



Vitrina, new species of, 93. 



Viverridae, descriptions of new, 47. 



Vrolik, M., on the priority of the 

 discovery of the mode of action of 

 the Pholades in the perforation of 

 stones, 70. 



Walpole, W. W., on rare Irish mol- 

 lusca, 366 ; on the occiu-rence of 

 Natica sordida, 367. 



Warington, R., on preserving the 

 balance between animal and vege- 

 table organisms in sea water, 319. 



Westwood, Mr., on a new genus and 

 species of amj)hipodous Crustacea, 

 44 ; on the dentition of the tiger 

 beetles, 216. 



Williams, Dr. T., on the mechanism 

 of aquatic respiration and on the 

 structure of the organs of breathing 

 in invertebrate animals, 243, 333, 

 393. 



Woodward, S. P., on the habits of 

 bivalve shell-fish, 415. 



Xerotus, new species of, 428. 



Yarrell, W., on the habits and struc- 

 ture of the great bustard, 35 ; on 

 the occurrence of the dusky petrel 

 on the coast of Ireland, 471. 



Ziziphinus, new species of, 199. 

 .Zoological Societv, proceedings of the, 

 45, 139, 199, 278, .348, 448. 



Zoophytes, on the mode of reproduc- 

 tion and development in various 

 groups of, 476. 



END OF THE TWELFTH VOLUME. 



