476 



INDEX TO VOL. Xlll. 



ACALLES, new species of, 415. 

 AcarinsB, observations on some, 74. 

 Acaulis primarius, observations on, 



135. 

 Acrfea, new species of, 381. 

 Actinia, on the nervous system of, 



254. 

 Adelium, new species of, 110. 

 ^turina, observations on the genus, 



15. 

 Agamura, characters of the new 



genus, 455. 

 Anchomenus, new species of, 240. 

 Animals marine, on the boring of, 344. 

 Annelid, on some remarkable egg- 

 sacs on an, 200. 

 Annelides, contributions to the study 



of the errant, of the older palfeozoic 



rocks, IGG; of the Gulf of St. 



Lawrence, on the, 261 ; new, 292. 

 Amarygmus, new species of, 112. 

 Ammonites, on the zoological rela- 

 tions of the Spirulae to the, 183. 

 Apion, new species of, 387. 

 Aquilamaculata, observationson, 373. 

 Araneidea, on certain peculiarities in 



the structure and functions of the, 



340. 

 Arcturus, new species of, 291. 

 Aricia, new species of, 296. 

 Artystona, description of the new 



genus, 104. 

 Ascidians, on the relationship of the 



Sponges to the, 433. 

 Astathmetus, description of the new 



genus, 23. 

 AsterophyUites, on the organization 



of the, 60. 

 Astroides, on the embryology and 



histology of the, 42. 

 Auletes, new species of, 388. 

 Bacteria, on the development of, in 



organic infusions, 168. 

 Balaena Hectori, on the bladebone 



of, 56. 



nodosa, note on, 180. 



Balsenoptera Huttoni, on the skeleton 



of, 448. 

 Barbus, new species of, 231. 

 Barker, A. E., on Max Schultze's 



latest views of the nature of Eozoon 



canadense, 379. 

 Bates, F., on new genera and species 



of Heteromera, with a revision of 

 the genus Hypaulax, 16, 102. 



Bates, H. W., on the geodephagous 

 Coleoptera of New Zealand, 233, 

 270. 



Beaumont, E. B., on high-power de- 

 finition, 177. 



Bees, on the sterile eggs of, 65. 



Bembidium, new species of, 275. 



Birds, on the parasitic mites of, 74 ; 

 on the existence of certain relations 

 between the mode of coloration of, 

 and their geographical distribution , 

 180; new, 123, 137, 160, 375, 448. 



Blackwall, J., on certain peculiarities 

 in the structure and functions of 

 the Araneidea, 340. 



Blanford, W. T., on new Lizards from 

 Persia and Baluchistan, 453. 



Books, new : — Scott's Mammalia, re- 

 cent and extinct, 58 ; Van Beneden 

 and Gervais's Osteographie des C^- 

 taces, vivants et fossiles, 60 ; Belt's 

 Naturalist in Nicaragua, 246 ; 

 Thomas's Acrididse of North Ame- 

 rica, 322. 



Bos pumilus, observations on, 159, 

 258. 



Brady, G. S., on the Ostracoda of the 

 Scilly Islands, and on the anatomy 

 of Darvdnella Stevensoni, 114. 



Brady, H. B., on a true Carboniferous 

 Niimmulite, 222. 



Brocchi, M., on the spermatophores 

 of the Decapod Crustacea, 471. 



Brooke, Sir V., on the Dwarf Buftalo 

 of Pennant, 159. 



Bunopus, characters of the new genus, 

 454. 



Butterflies, new, 380. 



Callignathus, observations on the 

 genus, 182. 



Callismilax, description of the new 

 genus, 105. 



Calycella producta, note on, 134 ; 

 new species of, 149. 



Carcinua mtenas, on the geographical 

 distribution of, 405. 



Cariuopora, description of the new 

 genus, 81. 



Carpenter, P. P., on the generic affi- 

 nitiesof the New-England Chitons, 

 119. 



