INDEX 



66 1 



Rhizostomatidae, 325 



Rhodactidae, 383 



Rhodactis (Rhodactidae, 383) ; it. sancti- 



thomae, 373 

 Rhodalia, 308 

 Rhodophysa (sub - family Physophorinae, 



308), 300 

 Rhodophyton, 3Ifi 

 Rhodopsammia, 404 

 Rhopilema, 325 ; R. csculenta, 312 ; R. 



verrucosa, 312 

 Rhumbler, on Foraminifera, classification, 



58 n. ; shell, 66 f. ; monstrous shells, 



69 n. 

 Rhyncheta, 159 f., 160, 162 

 Rhythm, of cell-life and reproduction, 



30 f. ; of contractile vacuoles in Para- 

 mecium, 143 n. ; in life-cycle of 



Infusoria, 148 n. 

 Ricorclea, 371 

 Ridley, 216 n., 352 n. 

 Riisea, 355 

 Ring-canal, of water- vascular system, 428 ; 



of Asterias rubens, 441 ; of Echinus 



esculentus, 517 ; of Holothuria nigra, 



566 

 Robertson, on the habits of Echinocardium 



cordatum, 552 

 Rock-urchins, 529 

 Rodents, hosts of Trypanosoma lewisii, 



119 

 Roemer, 199 n. 

 Romanes, on physiology of Echinoidea,519, 



521 

 Rom pel, on Spirochona, 144 n. 

 Rosette, -aggregate, of Treponema, 120 ; 



of Antedon rosacea, 584 

 Ross, on intermediate host of malarial 



parasites, 103 

 Rotalia, 59, 65 

 Rotaliaceae, 59 

 Rotifers, bladder of, 14 n. ; rheotaxy of, 



21 ; distribution of, 48 ; associated with 



Euglenaviridis, 124 ; formerly included 



under Infusoria, 136 ; vibratile styles of, 



141 

 Rotula, 548, 549 

 Rotula of Echinus esculentus, 526 

 Rotula muscles of Aristotle's lantern, 526 

 Roule, 408 

 Royal Society, early publications on 



Protozoa, 45 

 Ruminants, infested by Trypanosoma 



evansii, 119 ; parasitic Ciliata in paunch 



of, 152 

 Rumphius, 360 



Saccammina, 59, 63 



Sacculus, of Antedon rosacea, 587 ; of 



other species of Antedon, 588 

 Sagartia, 372, 375, 381 ; S. troglodytes, 



378 



Sagartiidae, 88 1 



Sagittal, 185 



Sagittal ring, 78, 83 ; plane, 414 ; costae, 

 416 n. 



Salenia, 538 ; S. varispina, 538 



Saleniidae, 530, 537, 558 



Salivary gland of gnat in relation to 

 malarial parasites, 105 



Salpingoeca, 111, 122 



Sand from sponges, a source of Fora- 

 miniferal tests, 62 



Sand, Rene, on Suctoria, 162 



Sand-dollar, 542 



Sand-urchin, 529 



Sanidaster (a modified euaster in which a 

 slender rod-like axis bears spines at 

 intervals along its length), 222 



Sapropelic Protozoa, 48 



Saprophyte, 33, 37, 90, 113, 119 ; relation 

 to brood-formation, 33 



Saprophytic, nutrition, 33, 37 ; Flagellata, 

 113, 119 



Sarasin, C. F. and P. B., on the madre- 

 poric vesicle and axial sinus of 

 Echinoidea, 528 ; on the relationships 

 of the Echiuothuriidae and Holo- 

 thuroidea, 537 



Sarcocystis, 98 ; S. tenella, 108 n. 



Sarcocyte, 96, 98 



Sarcode (Dujardin's term for protoplasm), 

 3f. 



Sarcodictyon, 344 > & catenatum, 342 



Sarcodictyum, 79 



Sarcodina, relations of, 48 f., ^,9, 50 f. ; 

 distinction from Flagellata, 109 



Sarcofiagellum, 80 



Sarcolemrna of stalk-muscle of Vorticella, 

 157 n. 



Sarcophyllum (Pennatulidae, 361), 360 



Sarcophytnm, 248, 330, 333, 347, 349 



Sarcosporidiaceae, 98, 108 



Sarsia, 265, 272 ; S. proli/era, 272 ; & 

 siphonophora, 272 



Sauropsida, egg of, 34 



Scaphiodon, 137, 141 n. 



Schafer, on mechanism of ciliary action, 

 18 n. 



Schaudinn, on exogamy in Foraminifera 

 and Trichosphaerium, 34 n. ; on Pro- 

 tozoa, 46; Arch iv fir Protisienkunde, 

 46 ; on chromidia in Sarcodina, 52 n. ; 

 on Trichosphaerium sieboldi, 54, 56 f. ; 

 on bud -fission in Rhizopoda, 55 ; on 

 syngamic processes of Rhizopoda, 57 ; 

 on reproduction in ForaminifVi 

 69 n. ; onHeliozoa, 71 ; on Sporoi 

 on life -cycle of Coccidiidae, 99, 101 ; 

 on relations of llalteri'Iium and 

 panosoma, 103 n., 116 n., 120; on 

 relations of Acystosporidae, 106 ; on 

 conjugation in Flagellates, 116 I 

 Trypanosoma, 120 ; on '/' 



