590 



Tokuplirya- Coiitiiiued. 



fund of, 311. 



(luadripartit.-i, 331), 341. 



fciuiul attached to small ani- 

 mals, 342. 

 method of preser\ati(-iii of, 310. 

 torta, Eugieiia, 313, 324. 



Trachelomonas, 326. 

 Tracheliida?, 331. 

 Trachelomonas, 274, 325, 420. 



acimiinata, 313, 325. 



armata, 325. 



caudata, 313, 325. 



hispida, 326. 



turta, 326. 



urceolata, 326. 

 Trematode, 404, 406. 

 Triarthra, 346, 367, 421. 



longiseta, 367. 



seasonal distrilnition of, 352. 



terminaiis, 354. 355. 367- 

 Triartliridce, 358, 366. 

 Trichodina, 337. 



pediculis, 337. 



frequent on Hydra \ iridis, 



337- 

 Trichomytilus as new genus for 



certain species of Mytilaspis, 397. 

 Trichostomata, 307, 316, 332. 

 trigona, (2uadrula, 401, 403, 409, 



410, 412, 413, 414. 

 trigonus, Unio, 403. 

 triptera, Metopidia, 377. 

 tripus, Notomniata, 369. 

 triqueter, Pliacus, 326. 

 triquetra, Euchianis, 374. 

 triserialis, Glossiphonia, 493. 



Helobdella, 493. 

 Trocliospluera, 356, 361. 



solstitialis, 362. 

 truncata, Lacrymaria, 330. 

 Trybom, F., 154, 160. 

 trybomi, Diaptomus, 98, 112, 120, 



158, 166, 183. 

 tuberculata, Philodina, 363. 



tuberculata — ContiniiciL 



Quadrula, 401, 403, 408, 409, 410, 

 412, 413, 415, 416. 

 tuberculatus, Unio, 403. 

 tuberculosa, Ditflugia, 313, 320. 

 Tubifex ri\ulorum, 442. 

 description of, 444. 

 Tubificida?, 445, 447, 448, 450, 451, 

 452, 453, 454. 456. 

 description of, 443 456. 

 ft)und in Illinois, 442. 

 Illinois, Descriptions of, and List 

 of Species of North American 

 01igt)cha;ta found in Illinois, 

 441-458. 

 Tul)ificid W(M"ms found in caca of 

 Macrobdella decora, 511. 

 found in stomachs of Dina mi- 

 crostoma, 541. 

 turgida, Allolobophora, 442. 

 Turner C. H., and Herrick, C. L.' 

 Syntipsis of the Entomostraca of 

 Minnesota, cited, 37, 38. 

 Turtles attacked by Macrolxlella, 

 511. 

 examination of, for Protozoa, 310, 

 312. 

 Tyrrell. J. B., 177. 

 tyrrelli, I)ia])tonnis,99, 108, 119, 160, 

 176, 184. 



U 



Underwood, L. M., List of the de- 

 scribed Species of Fresh-water 

 Crustacea from America North 

 of Mexico, cited, 97. 

 undulata, Alasniodonta, 401, 403, 

 409. 

 Margaritana, 403. 

 uniangulatus, Cyclops, 39, 41. 

 unicornis, Conochila, 354, 362. 

 Unio alatus, 403. 

 anodontoides, 403. 



C on ch o p h t li i rus anodonta? 

 found among gills of, 333. 



