INDEX. 
Nyctisaura, remarks on the, 308, 
Oligotoma, new species of, 227. 
Orthoptera, on the classification of 
the, 145. 
Osaces, characters of the new genus, 
99, 
Ovibos moschatus, on the discovery 
of, in the Forest-bed, 128. 
Owen, Prof. R., on the skull of Me- 
galosaurus, 63; on the answerable 
divisions of the brain in Verte- 
brates and Invertebrates, 303. 
Oyster, on the microscopic sexual 
characteristics of the American, 
Portuguese, and common edible, 
37. 
Packard, Dr. A. 8., Jun., on the 
classification of the Orthoptera and 
Neuroptera, 145; on the morpho- 
logy of the Myriopoda, 537. 
Papilio, new species of, 106. 
Pascoe, F. P., on new genera and 
species of Curculionids, 88; on 
new Australian Curculionids, 412. 
Pentellina, on dimorphism in, 67, 
Perichzta, new species of, 216. 
Perionyx, new species of, 217. 
Perrier, E., on the organization of 
the Crinoidea, 358. ; 
Phakellia, new species of, 318. 
Phloeodictyon, new species of, 526. 
Phycopsis, description of the new 
genus, 319. 
Pintia, new species of, 160. 
Plants, on selenotropism in, 140; on 
some fossil, from Northern China, 
172. 
Pleurotoma, new species of, 120. 
Plumularide, on the guard-animals 
of the, 250. 
Polycystina, on the detection of, in 
certain nodular flints, 52. 
Polyporus, new British species of, 
373. 
Potamolepis, description of the new 
genus, 405, 
Propheesia, new species of, 415. 
Ptilocaulis, description of the new 
genus, 321. 
Purpura tetragona, notes on, 66, 143, 
208. 
Pyrops, new species of, 242. 
Pyrosoma, observations on, 1; on 
blastogenesis and alternation of 
generations in, 70. 
Rappia, new species of, 163, 
Reptiles, new, 161, 225, 308. 
431 
Rhacophorus, new species of, 162. 
Rhaphidiophrys, new species of, 209, 
Rhinaria, new species of, 417. 
Rhinodon typicus, on the occurrence 
of, on the west coast of Ceylon, 
48. 
Rhinoplethes, new species of, 417. 
Riley, C. V., on jumping seeds and 
galls, 140. 
Ryder, J. A., on the microscopic 
sexual characteristics of the Ame- 
rican, Portuguese, and common 
edible oyster of Hurope, 37. 
Sacculina Carcini, on a new stage in 
the development of, 423. 
Salpze, on blastogenesis and alterna- 
tion of generations in the, 70. 
Schlumberger, M., on the dimorphism 
of the Foraminifera, 67. 
Scolopendrella, on the structure and 
systematic position of, 53. 
Scortizus cucullatus, note on, 388. 
Shells, on Brocchi’s collection of sub- 
apennine, 422, 
Spelerpes, new species of, 165. 
Spider, on the intelligence of the 
American Turret-, 281. 
Sponges, on the structure of some 
fossil, 26; on the presence of 
starch-granules in the ovum of 
marine, 30; on two new fresh- 
water, 120; new genera and species 
of, 308, 391. 
Spongilla, new species of, 120; on 
spicules of, in the diluvium of the 
Altmiuhl valley, Bavaria, 329. 
Stenocorynus, new species of, 89. 
Stenopora Howsii, on the structure 
of, 285. 
Stereum, new British species, 374. 
Stock, T., on the structure and affi- 
nities of the genus Tristychius, 
17. 
Styreus, characters of the new genus, 
413. 
Suberites domuncula, on the ovige- 
rous layer of, 34. 
Tabulipora Uri, remarks on, 154, 
295. 
Tarentula arenicola, on the intelli- 
gence of, 281. 
Telchinia, new species of, 102. 
Telephz, new species of, 99. 
Tenaris, new species of, 241. 
Teracolus, new species of, 103. 
Tetraneura ulmi, on the complete 
biological evolution of the, 282.. 
