INDEX 



611 



S* 



Repeated fission, 123, 141. 

 Reproduction, 9, 189. 



analysis of, 9. 



asexual, 10, 189. 



of Amosba, 118. 



of Amphioxus, 338. 



of Ascarisf 300. 



of cockroach, 280.1 



of crayfish* 2.64. 



of Entamoeba, 144. 



offcrog, 65, 109. 



of Hydra, \"jOi 



of leech, 238. 



of liver fluke, 204. 



of malaria parasite, 151s 



of Monocystis, 126. 



of Nereis, 234. 



of Obelia, 178. 



of Opalina, 159. 



of Paramecium, 134* 



of pigeon, 414, 



of Polytomaj, 123. 



of Protozoa, 191, 



of rabbit, 446. 



of swan mussel, ,323., 



of tapeworms, ,209. 



of Trypanosoma, ,149. 



of Vorticella, 1411 



sexual, 10, 189, 190.) 



See also Life-history. 

 Reproductive organs. ^(Genera- 

 tive organs. 

 Reptilia, 374, 385,518- 



blood vessels of, 391; 



heart of, 389. 



orders of, 392. 



skull of, 386. 



urinogenital organs.'ofj 3911 

 Respiration, 3, 16. 



of Amceba, 116. 



of Amphibia, 391. 



of birds, 391; 



of cockroach, 277. 



of crayfish, 257. 



of dogfish, 353. 



of earthworm, 225. 



of frog, 61. 



of Hydra, 170. 



of mammals, 391. 



of pigeon, 411. 



of rabbit, 444. 



Respiration — 



of reptiles, 391. 



of turtles, 391. 

 Retinula, 261. 

 Rhabditis, 302. 

 Rhizopoda, 143, 513.. 

 Rhynchocephalia, 394, 519. 

 Ribs, of cod, 575. 



of dogfish, 344. 



of frog (vestigial), 29., 



of pigeon, 402, 404^ 



of rabbit, 425. 



of snakes, 392. 



of turtles, 391, 393. 

 Rima glottidis, of frog, 62. 

 Rodentia, 471, 520. 

 Rostrum, of crayfish, 240. 



of dogfish, 346. 



of Ixodes, 271. 

 Ruminantia, 467, 520. 



Sacculus rotundus, 442. 

 Saccus vasculosus, 365.. 

 Sacs, air, of pigeon, 411. 



lymph, of frog, id, 



scrotal, of rabbit; 446. 



sperm, of dogfish,. 356. 



vocal, of frog, 47. 

 Salmon, 381. 

 Sarcolemma, 96. 

 Scales, cycloid, 381.. 



epidermal, of pigeon; 397. 

 of reptiles, 385; 

 of snakes, 392; 

 of turtles, 393. 



ganoid, 381. 



of Gymnophiona, 3841 



placoid, 342, 343, 377r 

 Scaphognathite, 246, 257. 

 Scapus, 399. 

 Schizogony, 151. 

 Schizont, 151. 

 Schizozoite, 151. 

 Sclerotic, 80. 

 Sclerotome, 487. 

 Scolex, 209. 

 Scyllium, 340. 



Sea-anemones, 184, ,514, 539- 

 Sea cows, 462. 



Secondary or true body cavity. 

 See Ccelom. 



