INDEX. 



869 



stone canal 183, num- 

 ber of madreporites 



184, axial organ, 

 vascular system, 

 gonads 186, care of 

 brood, habits 187, 

 extinct forms 188, 

 fixation of 149. 



Asteropsis 191 l . 



Asteropsis 241 J . 



Asthenos o m a 2 4 ] , 

 spines 226. 



Astigmata 851 2 . 



Astrobunus 842 l . 



Astroceras 207 ^ 



Astrochele 207 l . 



Astrochema 207 l . 



Astroclon 207 l . 



Astrocnida 207 '. 



Astrocrinus 313. 



Astrogomphus 207 l . 



Astrogonium 190 1 . 



Astronyx 207 \ 



Astropecten 189 2 , larva 

 141, no pedicellariae 

 173, potean vesicles 



185, stone-canal 183. 

 Astrophis 206 2 . 

 Astrophiura 207 -. 

 Astrophyton 207 ~, 



pedicellariae of 196. 

 Astroporpa 207 l . 

 Astropyga 241 \ 

 Astrotoma 207 l . 

 Astyra 501 l . 

 Asymmetry 390 2 . 

 Asymmetry of Verru- ' 



cidae 426 1 . 



Atax 843, 851 l . * 



Atelecrinus 301 l . 

 Atelecyclus 549. 

 Atelopsalis 851 -. 

 Atemeleta 667 2 . 

 Athalia 758. 

 Athanas 532 2 . 

 Athelges 491 2 . 

 Athelgue 491 2 . 

 Athelgus 491 2 . 

 Atherix 746 2 . 

 Atrac tides 851 '. 

 Atractosoma 593 1 . 

 Atrial cavity 12. 

 Atropos 678 1 . 

 Atta 772 2 . 

 Attacus 714 1 . 

 Attus 826 2 . 

 Aturus 851 l . 

 Atya 532 l . 

 Atyaephyra 532 \ 



Atylus 501 -. 

 Atyoida 532 l . 

 Atypoides 820 l . 

 Atypus 820 l , coxal 



glands 817. 

 Auditory organ, Insecta 



635. 

 Augaptilus 405 \ sexes 



399. 



Aulacus 761. 

 Auricle Echinoids 228, 



Balanoglossida 87, 



pluteus 140. 

 Auricularia 137, 138. 

 Austromysis 471 2 . 

 Austro-Peripatus 576. 

 Autodermophily 121. 

 Autotomy Asteroids 187, 



Balanoglossida 100. 

 Avicularia811,819. 

 Axial organ 130, 234, 



development 146, 



Asteroids 186, Cri- 



noids 287, Holo- 



thurians 255, Ophiu- 



rids 202. 

 Axial sinus Asteroids 



180, development 145, 



Echinoderms 128, 



Echinoids 231. 

 Axillary primibrach 277. 

 Axiopsis 538 l . 

 Axius 523, 538 1 . 

 Axonopsis 850 2 . 



Babycurus 806 -. 



Bacillus 670 1 , 670 2 



Back-swimmers 695. 



Bacteria 670 1 . 



Bactridium 670 l . 



Baculus 408 2 . 



Bacunculus 670 1 . 



Baerocrinus 294 l . 



Bairdia 391, fossil 358, 

 gastric mill 361, gut 

 386. 



Balanidae, shell of 419. 



Balanocrinus 301 l . 



Balanoglossida 67, 68. 



Balanoglossus 68, 73, 

 102. branchial pores 

 77, gonads 95, ova 

 95, habits 100, neural 

 canal 73, nerve-roots 

 73, notochord 75, 

 proboscis 82, 83, pro- 

 boscis pore 84, peri- 

 cardium 87. 



Balanus 425 2 , body of 

 418, excretory organs 



421, fertilization of 



422, larvae of 414, 

 parasite of 49 1 1 . 



Barana 784. 



Bargena 850 2 . 



Barnacles = Balanus. 



Barrandeocrinus 296 2 . 



Barrus 833. 



Barybrotes 489 '. 



Barychelus 819. 



Barycrinus 295 l . 



Basal plates Echino- 

 derms 121, Crinoids 

 275. 



Basanistes 409 2 . 



Basement membrane 

 Balanoglossida 91 , 

 connective and skele- 

 tal tissues 91. 



Basilar plate 595. 



Basipodite 344. 



Batea501 2 . 



Bathyactis, parasite of 

 435. 



Bathybiaster 189 2 . 



Bathycrinus 299, 300 *, 

 apical nervous sys^ 

 tern 283. 



Bathycuma 476. 



Bathyherpystikes 267 *. 



Bathynectes 548 -. 



Bathynella 463. 



Bathynomus 489 l , gills 

 of 441, pleopods of 

 482. 



Bathyoncus 28 >, 29 2 , 

 pharynx of 11, 26. 



Bathyphantes 823 -. 



Bathyplax 547 l . 



Bathyplotes 267 J . 



Bathyporeia 501 1 . 



Batocrinus 296 2 . 



Bdella 851 2 . 



Bdellorhynchus 852 2 . 



Beche de Mer 264. 



Bed-bug 694 1 . 



Bedeguar gall 758. 



Bee-bread 762. 



Beetles =Coleoptera. 



Beetles, black- 667 S 

 sound- producing 723, 

 wingless 727, smallest 

 728 2 , of ants 727 l , of 

 beavers 727 2 , mice 

 and humble-bees 727 2 , 

 ants' nests 728 S 

 thatch 728 2 , of rape- 1 



