480 
INDEX to VOL. X. 
Acts, new species of, 126. 
Acontia, new species of, 229. 
Addisoniide, characters of the new 
family, 16. 
Alcides, new species of, 446. 
Alcyonaria, observations on the, with 
descriptions of new, 125; on the 
development of the, 418. 
Alycus roseus, on segmentation in, 
188. 
Amblypodia, new species of, 152. 
Animal polymorphism, on, 416. 
Annelid, on a synthetic type of, 
330. 
Annelids, on the structure and func- 
tions of the elytra of the Aphrodi- 
tacean, 258. 
Anophia, new species of, 250. 
Anoplonereis Herrmanni, a com- 
mensal of Balanoglossus, 330. 
Anthribide,’ on a new genus of, 
455. 
Appias, new species of, 155. 
Areosternus, Pemphix, and Glyphea, 
on the genera, 133, 306. 
Areas, new species of, 159. 
Archeopteryx, on the structure of 
the head of, 334. 
Armadillo officinalis, note on, 361. 
Aroa, new species of, 227. 
Artaxa, new species of, 227, 
Arypteeus, characters of the new 
genus, 451. 
Asopia, new species of, 234. 
- Axinus, new species of, 29. 
Balanoglossus, observations on, 79 ; 
on a commensal of, 330. 
Barrois, Dr. J., on the embryogeny 
of the Bryozoa, 265, 588. 
Bate, C. Spence, on the new genus 
Eryoneicus, 456. 
Belenois, new species of, 153. 
Bell, Prof. F. J., on the Echinoderm 
fauna of Ceylon, with observations 
on Heteractinism, 218. 
Birds, new, 431. 
Boarmia, new species of, 252. 
Books, new :—Blake’s British Fossil 
Cephalopoda, 61; Rupert Jones’s 
Catalogue of Fossil Foraminifera 
in the British Museum, 66; Pas- 
coe’s Student’s List of British 
Coleoptera, 170; Distant’s Rhopa- 
locera Malayana, 171; Babington’s 
Manual of British Botany, 256; 
Nicholson’s Synopsis of the Clas- 
sification of the Animal Kingdom, 
407 ; Transactions of the Natural- 
History Society Isis for 1882, 
408; Cameron’s Monograph of the 
British Phytophagous Linen. 
pee 471; Guide to the British- 
useum Department of Geology 
and Paleontology, 474. 
~ Botys, new species of, 237. 
Bouchon-Brandely, M., on the sexu- 
ality of the Oyster, and on the 
artificial fecundation of the Por- 
tuguese Oyster, 328. 
Boulenger, G. A., on new genera 
and species of Frogs, 35, 326. 
Brady, H. B., on a new type of por- 
cellanous Foraminifera, 242. 
Brisingze, note on the, 261. 
Bryocheeta, new species of, 444. 
Bryozoa, on the embryogeny of the, 
265, 388. 
Butler, A. G., on new genera and 
species of Lepidoptera, 36, 149, 
226, 317, 372; on Euplcea Castel- 
naui, 73, 263 ; on some new species 
_ of Spiders, 100; on new species 
of Sphingide, 482. 
Calcispongiz, on fossil, with descrip- 
tions of new species, 185. 
Callopistria, new species of, 230. 
Carpenter, P. H., on the relations 
of Hybocrinus, Baerocrinus, and 
Hybocystites, 68. 
Carter, H. J., observations on the 
Spongida, with descriptions of 
new, 106, 362. 
Cellaria, new species of, 463. 
Cephalodiscus, a new type allied to 
Rhabdopleura, observations on, 
307. 
Ceramopora megastoma, on the 
identity of, with Fistulipora minor, 
427. 
Chalina palmata, observations on, 
109. 
Cheerocampa, new species of, 433. 
