INDEX. 
Cecidomyia, on the asexual repro- 
duction of the larve of, 161. 
Cellulipora, new species of, 181. 
Cetacean, description of a new, 94, 
303. 
Chalcolyne, description of the new 
genus, 297. 
Chatin, A., on the existence of a third 
membrane in the anther, 309; on 
the placentoid, 395. 
Chevreulius callensis, observations 
on, 152, 313. 
Chloéon, on the transformations of, 
377. 
Chondrostoma, new species of, 311. 
Cissampelos, notes on the genus,128. 
Claparéde, E., on the classitication of 
the Annelides, 100. 
Clinus, new species of, 312. 
Clypea, observations on the genus, 
268. 
Collema, new British species of, 59, 
350. 
Collocalia, synopsis of the species of, 
18. 
Colobus, new species of, 77. 
Colpodz, on the vital resistance of 
encysted, 79. 
Conchological gleanings, $1, 202. 
Conulus, new species of, 53. 
Crinoidea, on the occurreace of an in- 
ternal convoluted plate within the 
body of certain, 398. 
Cucullanus elegans, on the develop- 
ment of, 337. 
Dactylethrze, notes on the, 391. 
Desmiphora, new species of, 200. 
Dissopetalum, characters of the ge- 
nus, 267. 
Dochmius trigonocephalus, on the 
development of, 545. 
Dodo, on some bones of the, 473. 
Dorcasta, new species of, 35. 
Drosier, Dr., on the function of the 
air-cells, and the mechanics of re- 
spiration, in birds, 313. 
Dules, new species of, 317. 
Duméril, A., on the development of 
the Axolotl, 156; on the habits of 
the Lepidosirens, 160. 
Dyce, Dr.R., on some peculiarities in 
the eye of the mackerel, 307. 
Eleotris, new species of, 318. 
Enodia, new species of, 286. 
Epectasis, description of the genus, 
294, 
477 
Erana, description of the genus, 431. 
ee description of the genus, 
Esthlogena, new species of, 289. 
Estola, new species of, 291. 
Eumathes, new species of, 297. 
Eumimesis, characters of the genus, 
298. 
Exocentrus, new species of, 191. 
Fatio, V.,on the various modes of co- 
loration of feathers, 361. 
Feathers, on the various modes of 
coloration of, 361. 
Fischer, P., on the perforating Bryo- 
ie of the family Terebriporide, 
(al 
Fish, on the probable existence of 
accessory eyes in a, 320. 
Fish-hatching, on purifying the water 
for the purpose of, 77. 
Fishes, on the extension of certain 
marine, to the freshwater rivers of 
India, 153; on some marsupial, 
398; new, 311, 317. 
Flyingfish, on the mode of flight of 
the, 397. 
Fungi, on the reaction of iodine in, 
58. 
Garovaglio, Prof., on the Verrucariz, 
183. 
Germination, observations on, at dif- 
ferent degrees of constant tempe- 
rature, 241. 
Gibelli, Prof. G., on the reproductive 
organs of the Verrucariz, 270. 
Gobius, new species of, 318. 
oe J., on a Japanese Pheasant, 
50. 
Gray, G. R., on the species of the ge- 
nus Collocalia, 118. 
Gray, Dr. J. E., on some new species 
of Callithrix, 57; on two new spe- 
cies of Colobus, 77; on the genera 
of Vespertilionide and Noctilio- 
nid, 89; on the Pinnipedes, 444. 
Greyhounds run wild, 471. 
Gromia oviformis, observations on, 
351. 
Guppy, R.J.L., on the terrestrial and 
fluviatile Mollusea of Trinidad, 42. 
Gymnetrus Banksii, note on the cap- 
ture of, 312, 390. 
Hall, J., on the occurrence of an in- 
ternal convoluted plate within the 
body of certain Crinoidez, 398. 
Hastatis, new species of, 299, 
