INDEX. 



585 



Quadrula — Continued. 

 rubiginosa, 401, 403, 414. 



parasites of, 406, 409, 410, 412. 

 trigona, 401, 403. 



parasites of, 409,4 10,4 12,4 1 3,4 1 4. 

 tuberculata, 401, 303. 



parasites of, 408, 409, 410, 412, 

 413, 415, 416. 



R 



Rabot, Ch., 158. 

 radiata, Astrosiga, 329. 

 Radiolaria, 306, 315. 

 radiosum, Amceba, 317. 

 Rafter, G. W., The Microscopical 

 Examination of Potable Water, 

 cited, 13, 21. 

 Randolph, H., 456. 



Beit rag zur Kenntnis der 

 Tubificiden, cited, 456. 

 Raphidiophrys, 322. 

 elegans, 322. 

 pallida, 313, 322. 

 Rattulidae, 358, 371. 

 rectus, Lampsilis, 401,403,408, 409, 

 410, 412, 416. 

 Unio, 403. 

 reflexa, Obliquaria, 401, 403, 408, 



409, 410, 412, 413- 

 Keighard, J. E., 8, 535. 



A Biological Examination of 

 Lake St. Clair, cited, 2, 3, 



4, 5- 19- 

 on color of Dina fervida, 537. 

 reighardi, Diaptomus, 98, 109, 121, 



169, 184. 

 Report of the Biological and Nat- 

 ural History Survey of 

 Minnesota, cited, 132, 233. 

 Massachusetts State Board 

 of Health, cited, 13. 

 Khabdostyla, 340. 

 found on Entomostraca, on Pol- 

 yarthra platyptera, and on 

 aquatic worms, 340, 367. 



Rhizodrilus, 451. 



lacteus, 443. 



circulatory system of, com- 

 pared with that of Ilyodrilus 

 coccineus and Vermiculus 

 pilosus, 452. 



comparison of, with o ther 

 Tubificidae, 450-452. 



description of, 444-449. 



distinguishing characters of, 

 450. 



found on Sagittaria variabilis, 



444- 

 summary of important char- 

 acters of, 449. 

 Khizopoda, 304, 305, 313, 314, 31 7- 

 Rhizota, 356, 358, 360. 

 rhomboides, Metopidia, 377. 

 Rhynchelmis, 471. 

 Riballierdes Isles, 158. 

 Richard, J., on basal segment of ru- 

 dimentary f< m it ( if Cyclops viridis, 

 40. . 



See de Guerne and Richard, 

 ringens, Melicerta, 345. 

 riparia, Diplocardia, 442. 

 Rivularia, CLcistes mucicola found 



on, 361. 

 rivulorum, Tubifex, 442, 444- 

 robustus, Cyclops, 29. 

 roeselli, Stentor, 334. 

 rosea, Allolobophora, 441. 

 roseola, Philodina, 345. 

 Ross, L. S., 28, 31, 98, 126, 156, 181. 

 Rotifer, 362. 

 macrurus, 363. 

 neptunius, 363. 

 tardus, 363. 

 vulgaris, 363. 

 Rotifera, 12, 14, 19, 3°4. 3i°. 342- 

 384. 420, 421. 

 affinities and classification of, 355. 

 and Protozoa found in the Illi- 

 nois River and Adjacent Lakes 

 at Havana, 111., A List of the, 

 301-388. See under Protozoa 

 and Rotifera. 



