INDEX. 
[Synonyms aud native names are printed in italics. A star * denotes the first 
publication of a name ; a dagger + denotes a fossil. The absence of an 
authority is due to omission by the respective authors.] 
Aaptos aaptos, O. Schimdt, -1:79, 508. 
— adriatica, Gray, 508. 
A brolhos Islands: Amphipoda andlsopoda, 
1 ; Echinoderms, 229-251 ; Opistho- 
branohiata, 521 ; sea-pens, 21; sponges, 
477. 
Acamarchis, Lamx., 297. 
— dentata, Lamx., 297. 
— neritina, Lamx., 297. 
Acanthodoris pilosa, 569. 
Acantholeberis curvirostris, Lilljeb., 425, 
437. 
Acarapis -woodi. Hirst, 382. 
Acavi, new species, 363-392. 
Acarus marginatus, Herm., 366. 
Acervulina inh<erens, Schultze, 637. 
Acroperus harpre, Baird, 423, 425. 
Actheres, 90. 
Actinodoris, Ehrenb., 553. 
— sponsa, Ehrenb., 553. 
Aetinometra annnlata, Bell, 233. 
— nigra, P. H. Carp., 232. 
— stelUgera, P. H. Carp., 232. 
Actinophrys, Ehrenh., sp., 457, 473. 
Adults, phyletic succession, 83. 
Aetea, Lamx., 297, 308, 309, 316. 
— anguina, 297. 
— ligulata, Busk, 304. 
— truncata, Landsb., 297, 309. 
Aeteopsis, Boeck, 297. 
— elongata, Boeck, 297. 
^thusa ciliatifrons. Fax., 47, 48. 
.(Ethusina, 48. 
— gi-acilipes, Miers, 47, 78. 
Alcedo ispida, Linn., its brilliant colouring 
aposematic, 288. 
Alecto parvicirra, J. Miiller, 234. 
Algse, food of Daphnia, 416. 
Aliens rostratus, Triig., 383. 
AUantion, Sandun'*, 461; mentd., 452, 475. 
— tachyploon, Sandon*, 461; mentd., 452, 
457, 467. 
AUoniscus, Dana, 107 ; four spp., 108. 
— alluaudi, Dollf., 108. 
— brevis, Budde-Lund, 108. 
— elegans, Dollf., 108. 
— guttatus, Dollf., 1C8. 
— nacreus, CoUinge*, 107, 108, 113. 
— pallidulus, Budde-Lund, 108. 
— pigmentatus, Budde-Lund, 108. 
— tigris, Dollf., 108. 
Alloidoris, Bergh, 547. 
— hedleyi, O'Don.*, 523, 547, 549, 5.-)0, 
577, 579. 
— lanuginata, Abrah., 549. 
— marmorata, Bergh, 547, 548, 549, 550. 
Alona afiinis, Leyd., 425. 
— rustica, T. Scott, 425. 
Alonella excisa, 425. 
— nana, 425. 
Alouopsis elongata, Sars, 414, 423, 42 4 
425. 
Altson, A. M., Method of oviposition and 
the egg of Lyctus brunneus, Steph. 
217-227 ; Genital system of Lyctus 
brunneus, Steph., 581. 
Alveolina, Orb., 612. 
— melo, Heron-All. S,- Earl., 612. 
