504- 



INDEX. 



Termites, on the habits of the, 495. 



Tethya carnosa, observations on, 176. 



Tetragnatha, new species of, 81. 



Tettigarcta, new species of, 332. 



Thia polita, notice respecting, 176. 



Thompson, W., notice respecting the oc- 

 currence of Alcedo Alcyon, 69 ; on the 

 occurrence of an American bittern in 

 Ireland, 91 ; on the occurrence of Hy- 

 peroodon Butzkopf in Belfast bay, 151. 



Thwaites, G. H. K., on the occurrence of 

 tetraspores in Algae, 262 ; on the for- 

 mation of the spore in a species of Ve- 

 siculifera, 333. 



Tigrisoma leucolopha, description of, 86. 



Tosena, new species of, 331. 



Trochus, new species of, 443. 



Trogon melanocephalus, on the anatomy 

 of, 310. 



Trophonia Goodsirii, notice respecting, 

 294. 



Umbelliferae, new genera of, 50. 



Vegetable substance, on the causes of 

 disjunctions of, 354. 



Venturia, characters of the genus, 225. 



VesicuUfera, on the formation of the spore 

 in a species of, 333. 



Vogt, M., on the embryology of Actseon, 

 137. 



Walker, F., on some new species of Chal- 

 cidites, 108,177,270. 



Walton, J., on the genera Phyllobius, 

 Polydrosus and Metallites, 12; on the 

 genus Sitona, with descriptions of new 

 species, 227; on the genera Cneorhi- 

 nus and Strophosomus, with descrip- 

 tions of new species, 304. 



Warren, Dr. J. C., on the osteology and 

 dentition of some North American 

 mastodons, 145. 



Waterhouse, G. R., on a new species of 

 Hesperomys, 483. 



Wells, W., on a black lizard taken in 

 Cheshire, 449. 



Westwood, J. 0., on some new Rednvii- 

 dae, 65 ; on some new Hemiptera, 67 ; 

 on the Indian species of Papilio, 70 ; 

 on new Cimicidse, 284; on the sec- 

 tional characters of the genus Lucanus, 

 496; on a new genus of lamellicorn 

 beetles, 497. 



White, A., on some new species of homo- 

 pterous insects, 330 ; on a new genus 

 of Crustacea, 497. 



Williamson, W. C, on the supposed 

 sponge-spiculae of flints, 467. 



Willkomm, M., botanical notices from 

 Spain, 115,187,263,340,420. 



Zoological Society, proceedings of the, 

 126,200,285,362,431,476. 



Zoophytes, hehanthoid, on a new genus 

 of, 417. 



END OF THE SEVENTEENTH VOLUME. 





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