638 



INDEX 



Digestion, 9, 15 f. ; of reserves in brood- 

 formation, 33 ; in Carchesium, 147 ; in 

 Starfish, 440 



Digestive system see Alimentary Canal 



Dileptus, 137, 152 n. 



Dill, on Ghlamydomonas, etc., 119 n. 



Dimorpha, 70, 73, 75 n., 112 



Dimorphism of chambered Foraminifera, 

 67 f. 



Dinamoeba, 51 ; test of, 53 



Dinenympha, 111, 115 ; undulating mem- 

 branes of, 123 



Dinobryon, 110, 112 



Dinoflagellata, 110, 113, 130, 131, 132 ; 

 plastids of, 40 ; nutrition of, 113 



Dinoflagellate condition of young Noctiluca, 

 134 



Diphyes, 303, 307 



Diphyidae, 306 



Diphyopsinae, 307 



Diplacanthid, 457 



Dipleurula, definition, 605 ; forms of, 605- 

 608 



Diplocyathus, 111 



Diplodal, 210 



Diplodemia, 223 



Diploepora, 346 



Diplograptus, 281, 282 



Diplomita, 111 



Diplopore, 597, 599 



Diploporita, 598, 599 



Diprionidae, 282 



Directives, 367 



Disc, of Vorticellidae, 155, 158 ; of Ophio- 

 thrix frag His, 484 



Discalia, 309 



Discohexaster, 200 



Discoidea, 77 



Discoidea, 558 



Discomedusae ( = Ephyropsidae, 322 + Atol- 

 lidae, 322 + Discophora, 323) 



Discomorpha, 137 



Discooctaster, 200 



Discophora, 310, 316, 323 f. 



Discorbina, 59, 63; reproduction of, 69 



Discosomatidae, 383 



Diseases, produced by Coccidiidae, 102; 

 by Acystosporidae, 103 f. ; by Flagel- 

 lates, 119 f. ; by Trypanosomes, 119 f. ; 

 Protozoic organisms of, 43 f. 



Dissepiments, 385, 387 



Dissogony, 419 



Distichopora, 284, 2S6 



Distomatidae, 110 



Distribution of Protozoa, 47 ; of Sponges, 

 in space, 239 f. ; in time, 241 



Disyringa dissimilis, 209, 214, 215 



Diverticulum see Caecum 



Division, binary, 10 ; reduction-, 75 n. 



Dixon and Hartosj on pepsin in Pelomyxa, 

 16 



Dobie, 167 



Doederlein, 193 n. 



Doflein, 46 ; on parasitic and morbific 



Protozoa, 94 n. ; on syngarny of Cysto- 



flagellates, 135 

 Dohrn, on carnivorous habits of Sphaer- 



echinus, 516 

 Dolichosporidia ( = Sarcosporidiaceae), 98, 



108 

 Doramasia, 306 ; D. picta, 303* 

 Dorataspis, 78 ; skeleton, 80 

 Dorocidaris see Cidaris 

 Dorsal elastic ligament of Antedon rosacea, 



587 

 Dorso - central plate of Echinarachnius 



parma, 543 

 Dourine, disease of horses and dogs, 119 

 Drepanidium ( = Lankesterella), 97, 102 

 Dreyer, on genera and species of Radio- 



laria, 87 f. ; on skeleton of Radiolaria, 



82 n. 

 Dropsy, ascitic, associated with Lcyclenia, 



91 

 Drysdale and Dallinger, on organisms of 



putrefaction, 44 f., 116 f. 

 Dual force of dividing cell, 26 f. 

 Duboscq, Leger and, sexual process in 



Sarcocystis tenella, 108 n. 

 Duerden, 261, 369 n., 371, 373, 374, 389, 



397 n., 400 n., 403, 405, 406 

 Dujardin, on sarcode ( = protoplasm), 3; 



on Protozoa, 45 ; on true nature of Fora- 

 minifera, 62 f. ; on Sponges, 167 

 Dust, containing cysts of Protozoa, 47 ; of 



Flagellata, 118 

 Dysentery, in Swiss cattle, caused by 



Coccidium, 102 ; tropical, caused by 



Amoeba coli, 57 

 Dysteria, 137, 153 ; oral apparatus, 145 ; 



shell, 141 



Earthworm, Monocystis parasitic in, 95 



Echinanthidae, 5Jfi 



Echinarachnius, 548, 549 ; E. parma, 

 542 f., 543, 544, 545, 547 ; shape, 542 ; 

 sphaeridia, 545 ; internal skeleton, 545 ; 

 habits, 546 ; alimentary canal, 546 ; 

 Aristotle's lantern, 546 ; tube-feet, 547 



Echinaster, 439, 462 



Echinasteridae, 455, 458, 462 



Ecliinating, 217 



Echinidae, 539, 558 



Echininae, 539 



Echinocardium, 549 ', E. cordatum, 549 f., 

 551, 552 ; habitat, 549 ; shape, 550 ; 

 spines, 550 ; sphaeridia, 551 ; ali- 

 mentary canal, 551 ; tube -feet, 551 

 habits, 552; stone - canal, 552; E. 

 Jiavescens, 555 ; E. pennatifidum, 555 



Echinoconidae, 558 



Echinocyamus, 548, 549 ; E. pusillus, 549 



Echinocystites, 557 



Echinodermata, 425 f. 



