868 



INDEX. 



Archaeocidaris 239 1 . 



Archaster 189 1 . 



Archasterias 188. 



Archiapinae 763. 



Archiblatta 667 2 . 



Archicerebrum 320. 



Archiconchoecia 390 2 . 



Archidistoma 33. 



Archimantis 669 1 . 



Archisometrus 806' 2 . 



Archispirostreptus, de- 

 velopment 589. 



Arctiidae 718' 2 . 



Arctopis 546 1 . 



Arcturides 488 2 . 



Arcturus 488 2 . 



Arctus 535 l . 



Arcys 824 \ 



Argas 846, 849 l . 



Argeia 491'-. 



Argilloecia 391. 



Argiope 823 2 . 



Argopatagus 247. 



Argulus 411, 413, limb 

 344. 



Argynnis 7121 



Argyrodes 823 '. 



Argyroneta 825'. 



Ariadna 821 2 . 



Arista 739. 



Aristaeomorpha 529'. 



Aristaeopsis 529 '. 



Aristeus 529 1 . 



Aristocystis 309. 



Armadillidium 487. 



Armadillium 482. 



Armadillo 487. 



Army-worm 719 1 . 



Arolium 668 1 . 



Arrhennrus 851 l . 



Artema 822". 



Artemesia 529 '. 



Artemia 376, partheno- 

 genesis 373. 



Artemiopsis 376. 



Arthracantha 296 1 . 



Arthrobranchia 518. 



Arthropoda 314, rela- 

 tion to Annelida 315, 

 coelom and haemo- 

 coele 316, heart and 

 pericardium 317, foot- 

 jaws, head, segmenta- 

 tion of head 318, 325, 

 acron 326, innerva- 

 tion of antennae, an- 

 tennae originally post- 

 oral limbs 327, brain 

 320, 328, suboeso- 



phageal ganglion 32 1 , 

 maxillulae 322, table 

 of head-segments 325, 

 eyes 328, function of 

 compound eyes 331, 

 Arachnid eyes 334, 

 Myriapod eyes 329, 

 origin of compound 

 eye, statocysts and 

 otocysts 337, tactile 

 setae chordotonal, 

 light-producing, stri- 

 dulating and respira- 

 tory organs 338, 

 sexes, parthenogenesis 

 and eggs 339, 

 polyembryony 340, 

 early disappearance of 

 mesoblastic somites, 

 development of 



mesenteron, regenera- 

 tion 340, divisions 

 of 341. 



Articulata 298 1 . 



Artotrogus 407'-. 



Asagena 823 '. 



Asanada 603 1 . 



Ascalapluis 703 2 . 



Aschipasma = Ascepas- 

 ma 670 2 . 



Aschiza 748' 2 . 



Ascidia 13. 27 1 , com- 

 mensal in 406 2 , ma- 

 rioni and atra 7, 

 pharynx of 11, test 

 of 21 i. 



Ascidiacea 25. 



Ascidiae compositae 30. 



Ascidiae luciae 39. 



Ascidiae salpaeform.es 

 39. 



Ascidiae simplices 26. 



Ascidicola 406-. 



Ascidiidae 26. 



Ascidiozooid 41. 



Asclera 734 l . 



Ascomyzon 407'-. 



Asc opera 30'. 



Ascorhynchus 784. 



Ascothoracica 434. 



Asellota 487. 



Asellus 488 1 , penis 483, 

 development 485. 



Asexual reproduction, 

 Echinoderms 133, 

 Tunicata 18. 



Asilus 748 1 . 



Asphalia 715 2 . 



Aspidiotus 701 l , 705 



Aspidiphorus 731 -. 



Aspidochirotae 266. 



Aspidodiadema 240 2 . 



Aspidoecia 410 2 . 



Aspidophoreia 501 '-. 



Aspidophryxus 490'. 



Aspidosoma 188. 



Astacilla 488-. 



Astacoides 536 2 . 



Astacopsis 536' 2 , gills of 

 518 2 . 



Astacus 536 1 , blood 352. 

 embryo of 448, gills 

 of 518 2 , nervous sys- 

 tem 348. 



Astata 769 >. 



Astellitim 36'. 



Asterias 173, 185, 192 2 , 

 larva 141, madrepo- 

 rites 184, polian 

 vesicles 185, care of 

 brood 187, stone 

 canal 183. 



Asterina 191 ] , develop- 

 ment 143, hermaphro- 

 dite 186, gonoducts 

 of, autotomy and re- 

 generation 187, larvae 

 141, 142, 188, meta- 

 morphosis 146, stone- 

 canal 183. 



Asternata 245. 



Asteroblastus 310. 



Asterocheres 407' 2 . 



Asterodiscus 191 l . 



Asterodon 189 1 . 



Asteroidea 166, form of 

 body 167, number of 

 rays 167, anus 167, 

 size of 168, body-wall 

 169, skeleton ' 169, 

 peristom 170, ambital 

 skeleton 171, apical 

 system 171, spines 



172, paxilli 172. pedi- 

 cellariae 173, scales 



173, granules 173, 

 absence of pedicel- 

 lariae 173, muscles 



174, nervous system 

 174, eye 175, alimen- 

 tary canal 176, mesen- 

 teries 177, coelom 178, 

 papulae 179, peri- 

 haemal spaces 179, 

 axial sinus 180, 

 aboral sinus 181, 

 watervascular system 

 181. madreporite 182, 



