INDEX. 



877 



co- 



Distichal 277. 



Distoma 33. gill slits of 



10. 

 Distomidae, epicar- 



dium 15. 



Dithyrocaris 358-. 

 Dixa 745 1 . 

 Dolchinia 60. 

 Dolichoderinae 772. 

 Dolichoglossus 67, 09, 



78. 96. 97, 103 2 . 



branchial pore 77. 



gill - slits, collar 69. 



nerve cord 72, nerve- 



root 73, ova 95. 



development 96, 



habits 100, odour and 



colour 100, proboscis 



pores 84. peripharyn- 



geal cavities 87. mus- 



cles 91. 



Dolichopidae 748-. 

 Dolichopterus 798. 

 Doliolida 54. develop- 



ment of 56. 

 Doliolum 54. 55. 56. 57. 



58, 59, 60, budding of 



57, development of 



19. 



Doliomalus 824-. 

 Dolistenus 594 '. 

 Dolomedes 852 2 . 



coons of 819. 

 Dolophones 824 '. 

 Dolops 413". 

 Donusa 408 2 . 

 Dorceus 820 -. 

 Doridicola 407 1 . 

 Dorippe 544 1 . 

 Doris, parasite of 407 1 

 Dorocidaris 239 -. 

 Dorodotes 532-. 

 Doropygus 406 -. 

 Dorsal lamina '.). 

 Dorsal organ 130, Am- 



phipoda 498. 

 Dorsal shield Crust.'icc.-i 



343. 

 Dorsal tubercle. 5, of 



Salpida 47. 

 Dorsocentral of C'rinoids 



157. 276. 

 Dorsocentral plate C'ri- 



noids 121. 

 Dorsolaterals 171. 

 Dorycera 749 -. 

 Dorycrinus 296-. 

 Dorylus 773. 

 Doryphora 735-'. 



Dotilla 547-. 

 Doyeria 857, 859. 

 Dragon-flies 686. 

 Drakes 686. 

 Drassodes 822 '. 

 Drepana 717 '. 

 Drepanepteryx 704 2 . 

 Drepanopus 405 '. 

 Drepanosiphuin 699 1 . 

 Drepanothrix 381 2 . 

 Dresser us 820 -. 

 Dromia 543. 

 Drone 765. 

 Drosophila 750 2 , micro- 



pyle 640. 

 Drymusa 821 l . 

 Dryomyzidae 750 1 . 

 Dryope 500 -. 

 Dulichia 500 2 . 

 Dung-flies 750. 

 Duns 686. 

 Duplorbis 433 2 . 

 Dycladia 715 2 . 

 Dynomene 543. 

 Dysaster 246 l . 

 DysderaSll, 82*1 2 . 

 Dysdercus 692 2 . 

 Dysgamus 408 l . 

 Dyspontius 407 -. 

 Dytaster 189 1 . 

 Dytiscus, 762 2 , larva. 



ocellus of 329, leg 



621, ovary 638. 



Earias 718 2 . 



Earwigs 666 '. 



Ecdysis 315. 



Echemus 822'. 



Echetus 409'. 



Echidnocerus 541 2 . 



Echinanthus 245 2 . 



Echinarachnius 244 2 ,- 

 pores 215. 



Echinaster 168, 192 2 , 

 stone canal 183, no 

 pedicellariae 173, 

 madreporites of 184, 

 parasite of 435. 



Echiniscoid.es 859. 



Echiniscus 856,857,859. 



Echinobrissus 245 2 . 



Echinocardium 246 2 , 

 habits 235. 



Echinocaris 358 2 . 



Echinocidaris 241 -. 



Echinoconus 245 1 . 



Echinocorys 246'. 



Erhinorrepis 247. 



Echinocyamua 243-, 

 pores 215, madn-- 

 porite 232. 



Echinocyphus 241 2 . 



Echinocystites 238. 



Echinodermata 115, his- 

 tory 115, symmetry 



116, position of anus 



117, radii 117, sur- 

 faces 117, number of 

 radii 118, water- pores 

 and madreporites 118, 



127, increase of radii 

 during growth 119, 

 enumeration of radii 

 119, calcareous plates 

 119, pedicellariae 121. 

 skeletal plates 121, 

 alimentary canal 123, 

 nervous system 123, 

 sense organs 125, 

 muscles 126, coelom 

 126, primary water- 

 pore 127, 130, mad- 

 rcporite 127, peri- 

 visceral cavity 127, 

 amoebocytes 127, 

 axial sinus 128, peri- 

 haemal spaces and 

 sinus system, wat- 

 er-vascular system 



128, anterior coelom 



129, number of water- 

 pores 130, axial or- 

 gan 130, excretion 131, 

 vascular system 131, 

 gonads 131. genera- 

 tive rachis 132, habits 

 132, 133, first appear- 

 ance 133, regenera- 

 tion 133. asexual re- 

 production 133, de- 

 velopment 133, das 

 sificatioii 133, care 

 of brood 134, mesen- 

 chyme 135, ova 134, 

 larval mouth and anus 

 136, larvae 137. deve- 

 lopment of eoelom 

 142, of stone canal 



145, of perihaemal 

 system 145. of aboral 

 sinus 145. 146, of 

 axial organs 14fi, of 

 primitive germ cells 



146. of generative 

 rachis 14'J, fixation of 

 larval Asteroids 149. 

 Antedon develop- 



