448 



INDEX, 



of the Saprolegnise and Perono- 

 sporefe, 219. 



Ruticilla, new species of, 329. 



Salvin, O., on new species of Butter- 

 flies fi-om tropical America, 163. 



Saprinus, new species of, 311. 



Savory, W. S., on the structure of the 

 red blood-corpuscle of the ovipa- 

 rous Vertebrata, 69. 



Sciobius, new species of, 416. 



Sea, on the depths of the, 112. 



Shells, on some British freshwater, 

 341. 



Shrew, note on a naked, 360. 



Sittella, new species of, 110. 



Smith, F., on the parasitism of Rhi- 

 piphorus paradoxus, 393. 



Smith, H. L., on the spectroscopic 

 examination of the Diatomacese, 

 218. 



Smith, S. I., on a new genus and two 

 new species of Scyllaridse, and a 

 new species of ^thra, 228. 



Sorastrum spinulosum, on the deve- 

 lopment of, 420. 



Spatangus Rasclii, description of, 

 220. 



Spoggodes, new species of, 361. 



Sponges, on the subspherous, 1 ; 

 new, 189. 



SpongiUa, on the reproductive ele- 

 ments of, 19. 



Steindachner, F., on Polypterus La- 

 pradei and P. senegalus, 443. 



Swinhoe, R., on two new species of 

 Sun-birds from South Cliina, 436. 



Symphyletes, new species of, 207. 



Tate, R., on the terrestrial MoUusca 

 of San Lucia, 356 ; contributions 

 to Jurassic palaeontology by, 417. 



Tethya, new species of, 3, 7. 



Tetropium, new species of, 382. 



Thomson, Prof. W., on the depths of 

 the sea, 112 ; on a new genus of 

 Vitreous Sponges, 284. 



Thyca, new species of, 242. 



Thysia, new species of, 208. 



Tineophaga, description of the new 

 genus, 359. 



Tischeria complanella and its para- 

 site, on, 359. 



Tomicus, new species of, 321. 



Trachyphloeosoma, description of the 

 new genus, 414. 



Tribalus, new species of, 310. 



Trigonograpsus, description of the 

 new genus, 231. 



Trochammina pusilla, on the Per- 

 mian, and its allies, 386. 



Urycordylus, new species of, 182. 



Vemll, A. E., on a new genus of 

 Jellyfish and two new Actinians, 

 160; on some new Phyllopod 

 Crustacea, 331. 



Vespa, on the relations of Rhipi- 

 phorus to, 347, 393. 



Voluta, new species of, 34, 140. 



Voluta Thatcheri, on the spire of, 

 140. 



Wedl, Prof., on the systems of ca- 

 pillary vessels in the Gasteropods, 

 365. 



WoUaston, T. V., on the Coleoptera 

 of St. Helena, 297, 401. 



Worms, on the existence of distinct 

 larval and sexual forms in the 

 gemmiparous Oligochfetous, 102. 



Zacotus, description of the new ge- 

 nua, 373. 



END OF THE FOURTH VOLUME. 



PRINTED BY TAYLOR AND FRANCIS, 

 RED LION COURT, FLEET STREET. 



