460 
INDEX to VOL. VIII. 
eee 
Aptrr, Dr. H., on the alternating 
generation of the Gall-flies of the 
oak, 281. 
Afrenica, new species of, 145. 
Alactaga, new species of, 14. 
Alampyris, new species of, 150. 
Alpheus, new species of, 365. 
Alpheus heterochelis, on an abbrevi- 
ated metamorphosis in, 447. j 
Amphionycha, new species of, 196. 
Antarctia, new species of, 311. 
Antodyce, new species of, 145. 
Apagomera, characters of the new 
genus, 146, 
Apellorrhina simillima, note on, 362. 
Aphilesthes, characters of the genus, 
145. 
Aphis of the Alder, on the biological 
evolution of the, 323 
Aplysina, new species of, 103. 
Archeopteryx, on the, 452. 
Archaster, new species of, 440, 
Archer, Mr., on a new Sarcodine, 
230; on a new species of Stauras- 
trum, 252. 
Arctia, new species of, 311. 
Aristeus, new species of, 188. 
Artemia salina, on the vitality of the 
germs of, 456. 
Ascidia, on the compound, of the Bay 
of Naples, 455. 
Ascidians, on the embryogeny of the, 
6 
Asterias, new species of, 66. 
Aulastoma heluo, observations on, 
137. 
Azelina, revision of the genus, with 
descriptions of new species, 29. 
Barkas, T. P., on Ctenoptychius or 
“ Kammplatten,” 350. 
Barrois, J., on the metamorphosis of 
Pedicellina, 163, | 
Be C. Spence, on the Penzidea, 
69, 
Bates, H. W., on the Afrénicides 
and Amphionychides of tropical 
America, 142, 196, 290. 
Bell, Prof. F. J., on the characters of 
the genus Crossaster, with descrip- 
tion of a new species, 140; on 
the Echinodermata of Ascension 
Island, 436; on a new species of 
Archaster, 440. 
Benthesicymus, characters of the new 
genus, 190. 
Birds, on the Jurassic, and their allies, 
452. 
Blastoidea, on certain points in the 
morphology of the, 418. 
Blepharisma lateritia, on the vitality 
of the germs of, 456. 
Bombyces, on some North-American, 
306. 
Books, new :—Nicholson’s Structure 
and Affinities of the genus Monti- 
culipora, 61; Lee’s Note-book of 
an Amateur Geologist, 63; Journal 
and Proceedings of the Royal So- 
ciety of New South Wales for 1879, 
158; Proceedings of the Bristol 
Nat. Hist. Soc., 1879, 2b. ; Proceed- 
ings of the Yorkshire Geological 
and Polytechnic Society, 1880, 
159; Clarke and Roebuck’s Ver- 
tebrate Fauna of Yorkshire, 319 ; 
Balfour’s Comparative Embryo- 
logy, vol. i1., 3882; Rutot’s Excur- 
sions Géologiques, 883; Buck- 
ton’s British Aphides, 384; Dar- 
win’s Formation of Vegetable 
Mould through the action of 
Worms, 448. 
Brady, H. B., on some Arctic Fora- 
minifera, 393. 
Brongniart, C., on the structure of 
the oothecee of the Mantides, 164. 
Butler, A. G., on the genus Azelina, 
29; on Dr. Karsch’s subdivision 
of the Phrynidia, 69; on North- 
American Sphinges and Bombyces, 
306; on new Heterocerous Lepi- 
doptera, 379. 
Caberea, new species of, 2. 
Calocosmus, new species of, 151. 
Carlin, W. E., on Siredon lichenoides, 
235. 
Carpenter, P. H., on a new Coma- 
tula from the Kelloway Rock, 167 ; 
