sicilis — Continued. 



van imperfectus, Diaptomus, 124, 

 158, 167, 169. 

 siciluides, Diaptomus, q8, 100, 114, 

 121, 124, 137, 146, 154, 157, 165, 

 166, 181, 182, 183, 265. 

 signatus, Cyclops, 29. 



van tenuicornis, Cyclops, 47. 

 signicauda, Diaptomus, 98, 114, 120, 



157, 159, 160, 164, 183. 

 signicaudatus, Diaptomus, 164. 

 similis, Diaptomus, 132, 182. 



Vorticella, 338. 

 Simpson, C. T., 418. 

 sinensis, Limnocaianus, 99, 229, 235 



236, 237, 238, 245. 

 singularis, Diplocardia, 442. 

 Slipper animalcule, 332. 

 Smith, Fmnk, i, 98, 228, 229, 303, 

 348, 479. 

 List of the Pnitozoa and Mol- 

 lusca observed in Lake St. 

 Clair in the Summer of 1893, 

 cited, 313. 

 Notes on Species of North 

 American OligochcCta. 

 IL, cited, 447,462, 468,470, 



471. 



Notes on Species of Nortli 

 American 01igt)c!iceta. 111. 

 List of Species found in Illi- 

 nois, and Descriptions of Illi- 

 nois Tubificida;, 441-458. 



Notes on Species of North 

 American Oligochaeta. IV. 

 On a New Lumbriculid Ge- 

 nus from Florida, with addi- 

 tional Notes o\\ the Nephrid- 

 ial and Circulat<iry Systems 

 of Mesoporodrilus asym- 

 metricus Smith, 459-478. 



on occurrence of Rhizopoda in 

 surface collections, 313. 

 Snails as food of G 1 o s s i p h o n i a 

 c:omplanata, 493. 



Snapping turtles, Opercularia 



i r r i t a b i 1 i s found on backs of, 

 340. 

 snowi, Diaspis, 398. 

 sociale, Gonium, 437. 

 sol, Actinophrys, 313, 322. 

 Solenococcus proposed as new 



name for Solenophora, 392. 

 Solenophora (?) dryandras w i th - 

 drawn by Fuller, 392. 



Solenococcus proposed as new 

 name for, 392. 

 solidus, Metopidia, 377. 

 solstitialis, Trochospha^ra, 362. 

 Sparganophilus eiseni, 442. 

 Sphasrococcini, 389. 

 Sphajrococcus, 489. 

 spiralis, Lumbriculus, 450. 

 Spirogyra, 354. 



as food of Mastigocerca, 371. 

 spirogyra, Euglena, 313, 324. 

 Spirosperma, 453, 456. 

 Spirostomum, 333. 



teres, 333. 

 Spirotricha, 308, 316, 333. 

 Spondylomorum, 419. 

 Sporochytriacea?, one of the, as 



parasite of Platydorina caudata, 



434. 

 Sporozoa, 305, 306, 315. 

 stagnalis, Diaptomus, 97, loi, 113, 

 115, 129, 136, 138, 142, 164, 183. 



Glossiphonia, 496, 497- 



Hirudc), 497. 

 Stenton 308, 333. 



barretti, 313, 334. 



ctcruleus, 313, 334. 

 culture of, 348. 



igneus (?)334. 



polymorphus, 313, 334. 



roeselii, 334. 



sp.. 334- 

 Stentoridie, 333. 

 Stephanoceros eichhornii, type of 



tropin of, 345. 



