46 
INDEX to VOL. XVI. 
ACALEPHA, on the occurrence of an 
intestinal worm in a species of, 88. 
Accentor, new species of, 204, 
Achatina, new species of, 344. 
Acipenser Huso, notice respecting the 
capture of, 213. 
Actzon, on the anatomy of, 145. 
Adolias, new species of, 179. 
igus, new species of, 276. 
Agassiz, M., on the geological develop- 
ment of animal life, 355. 
Alcedo Alcyon, on the occurrence of, in 
Ireland, 430. 
Alder, J., on new genera and species of 
nudibranchiate mollusca, 124, 311; 
Monograph of the British Nudibran- 
chiate Mollusca, reviewed, 252. 
Algz, on the spores of some, 141; on 
mounting minute, for the microscope, 
351; on the existence of tetraspores in 
a genus of, 428. 
Allman, Prof. G. J., on a monstrosity oc- 
curring in Saxifraga Geum, 125; on 
the anatomy of Actzon, with remarks 
on the order Phlebenterata, 145. 
Amblygnathus, new species of, 22. 
Ammophorus, new species of, 30. 
Amphipeplea, on a new species of, 341. 
Anchonus, new species of, 39. 
Animalculites of certain tertiary and mo- 
dern deposits, remarks on the, 73. 
Animals, marine, notes on some, 238. 
Annelides, on the British, 4; on the de- 
velopment of the, 183; index to the 
British, with descriptions of new spe- 
cies, 433. 
Apatura, new species of, 178. 
Aphroditacez, new genera of, 8. 
Aquila nzevia, notice respecting the oc- 
currence of, in Ireland, 351. 
Arctic expedition, account of the, 163. 
Ardea, new species of, 335. 
Argonauta Argo, on the Hectocotyle of 
the, 414. 
Argyrophenga, characters of the new ge- 
nus, 307. 
Artamus mentalis, description of, 174. 
Artemis, new species of, 56. 
Asiatic Society, proceedings of the, 137. 
Astur, new species of, 227. 
Athene, new species of, 228. 
pee, characters of the new genus, 
Babington, C. C., on some species of 
Cuscuta, 1; on Ranunculus Lenor- 
mandi, 141. 
Bzomyces anomalus, observations on, 90. 
Baily, F., notice of the late, 415. 
Ball, Mr., on the sounds produced by one 
of the Notonectide, 129. 
Barneoud, J. M., on the group Schizope- 
talez, 66. 
Bats, new species of, 49. 
Berkeley, Rev. M. J., on mounting mi- 
nute algee for the microscope, 351. 
Berkeleya, on the British species of, 110. 
Bettington, A., on certain fossils related 
to the Sivatherium and giraffe, 137. 
Birds, new genera and species of, 48, 60, 
61, 174, 198, 227, 335; found in the 
vanity of Tunis and Biserta, list of, 
Blood-corpuscle, on the development of 
the, 131. 
Boisduval, M., on a fossil diurnal lepid - 
pterous insect, 353. 
Botanical Society of Edinburgh, proceed- 
ings of the, 139. 
Botanical travellers, notices respecting, 
113, 189, 248, 829, 462. 
Bowerbank, J. S., on the Spongiade, 
with descriptions of some new genera, 
400. 
Brachypteryx, new species of, 228. 
British Association, proceedings of the, 
123. 
Brongniart, A., on the organogeny of the 
flower of the Malvacez, 240. 
Buch, M. von, on the Cystidez, 213. 
Bulimus, new species of, 334, 340, 343. 
Buteo, new species of, 207. 
Butterflies, descriptions of new, 176, 232, 
304. 
Butterfly, fossil, description of a, 353. 
Calamoherpe, new species of, 64. 
Calicium, remarks on some British spe- 
cies of, 91. 
Callirhipis, new species of, 209, 
Cantor, Dr., on the foetus of Zygzena la- 
ticeps, 372. 
odie 
