500 



INDEX. 



Aphrocallistes Bocagei, 325, 327, 328 ; 

 on a form from the coast of Spain, 

 320. 



Aplysia dactylomela, Notes on, by Gr. 

 E. Dobson, 159 ; lingual ribbon of, 

 159. 



Aptychus, 189. 



Arctic Expedition, Crustacea of, 59 ; 

 •Polyzoa of, 231. 



Argentina Cuvieri, 78, 82 ; decagon, 

 78, 83 ; hebridica, 78, 80 ; lioglossa, 

 84 ; silus, 78, 81, and descrip. of, 

 334; sphyrsena, 78, 82, 84, (ftnote) 

 334; the food of, 336 ; Yarrelli, 78. 



Argentina silus, occurrence of, on shore 

 of Moray Firth, by T. Edward, 334. 



Argentine, on the Hebridal, by F. Day, 

 78. 



Ariina, 38. 



Arius Commersonii, 39 ; fissus, 39. 



Ascaris lonchoptera, 333. 



Ascidia (anat. of), 275 ; aspersa, 281, 

 332 ; depressa, 286 ; exigua, 288 ; 

 fusiformis, 278 ; lata, 277 ; muri- 

 cata, 285 ; obliqua, 286 ; Patoni, 

 284 ; plebeia, 287, 331 ; scabra, 284, 

 289, 330 ; triangularis, 283 ; trun- 

 cata, 280 ; virginea, 279, 330. 



Ascidians, individual variation in the 

 branchial sac of, by W. A. Herdman, 

 329. 



Ascidiidse, remarks on, 274. 



Ascopodaria, n. gen. Polyzoa (Busk, 

 MS.), 2. 



Aspredo, 39. 



Assagena phalerata, 152. 



Atherina Yarrelli, 82. 



Atta testaceo-pilosa, exp. on, 168. 



Atylus carinatus, 68. 



Audouin on segments of insects, 9, 17. 



Aulodictyon, 328. 



Auxis vulgaris, 311. 



Axinellidse (Fam. Sponges), 493. 



Bagrus, 45. 



Balanus crenatus, 73 ; porcatus, 73. 



Balistes, 45. 



Barbus, 42. 



Bee, structure thorax of, 19. 



Bela expansa, 449. 



Bell, Prof. F. Jeffrey, on an abnormal 



Amblypneustes formosus, 126. 

 , on retention of sur-anal plate in 



Echinometra, 318. 

 Belone vulgaris, 48. 

 Bert, Paul, exp. on Daphnia, 376. 

 Bicellariid* (Arctic), 233. 

 Bittium, subg. Cerithium, 99, 123, 227. 

 Blatta orientalis, 9 ; homologues of 



wings on prothorax of, 9. 



Blow-fly, A. Hammond on thorax of, S 

 Borsonia, subg. Pleurotoma, 473. 

 Bourgueticrinus, 211, 212. 

 Bowerbankia arctica, 241 ; gracilis, 24! 

 Bradypus castaneiceps, structure hai 



of, 337, 339. 

 Branchial sac of Ascidians, variatio 



in, 329. 

 Branchinecta arctica, 60, 70. 

 Branchipus stagnalis, 71. 

 British Fishes, observ. on, by F. Da^ 



310. 

 British Tunicata, W. A. Herdman oi 



276. 

 Bugula fruticosa, 233, 241 ; Murraj 



ana, 233. 

 Bullhead, 35. 



Burmeister on humeri of insects, 11. 

 Busk, Gr., Descrip. Cat. sp. of Cell 



pora of ' Challenger' Exped., 341. 

 , on Chitinous org. of Cheilostc 



mata and Cellepora, 357. 

 , on Polyzoa of JST. Polar Exped 



231. 

 Butler, A. Gf., on new Moth (fan 



Liparidse) from Madagascar, 84. 



Cainocrinus, 210. 



Caligus curtus, 67, 71. 



Callichthys asper, 35 ; punctatus, 35. 



Campbell, F. M., on glands in maxill 

 of Tegenaria domestica, 155. 



, on stridulating-org. of Steatod 



guttata and Linyphia tenebricoh 

 152. 



Camponotus inflatus, 185, 186. 



Caprella septentrionalis, 69. 



Caranax hippos, 49. 



Carassius auratus, 41. 



Carpais, 301. 



Carpenter, P. Herbert, on Solanocrinu 

 and its relations to recent Comatula 

 187. 



Cassidaria, 146. 



Cassidea (Chall. Exp.), 245. 



Cellepora, 343 ; albirostris, 343, 34 

 345, 346 ; ansata, 356 ; apiculat 

 343, 344, 345; bicornis, 354; bi 

 denticulata, 356 ; bilabiata, 355 

 bispinata, 345, 347 ; canaliculate 

 356; cervicornis, 237, 238; cc 

 lumnaris, 343, 344, 348 ; conic* 

 355 ; coronopus, 239 ; cylindriformi 

 351 ; Eatonensis, 351, 352, var. ma 

 gellensis, 342 ; hastigera, 343, 344j 

 honolulensis, 343, 344, 348; im 

 bellis, 343, 349 ; Jacksoniensis, 351 

 magellensis, 352 ; mamillata, 34'? 

 354 ; nodulosa, 343, 344, 345 ; ovalis 

 352 ; polymorpha, 353, var. a. dig 



