INDEX 



719 



Hoteromouadiilae. 27. 

 Iletoromysis. 383. 

 Iletcrononicrtoa. 2(»7. 

 Iletonmorois, 2SS, 

 Ileterophrys. 23. 

 Ilotcropoda. 551. 

 hetorostropha ( Physa ) , 



511. 

 Heterotrichida, 57. 

 Hexactinellidae, 77. 

 Hexactiniae, 141. 

 hexagonus (Ilyroides), 302. 

 Hexamitus, 31. 

 hexaptera (Sagitta), 272. 

 hexaris (Aspidisca), 64. 

 hibernalis (Filistata), 419. 

 hincksi (Campanularia), 



111. 

 Hinge (In pelecypods), 564. 

 Hippa, 393. 

 Hippasteria, 627. 

 Hippidae, 393. 

 Hippolyte. r.87. 

 hippolytes (Bopyroides), 



382. 

 HipponoV, 643. 

 Hippospongia, 84. 

 Ilirdnia, 85. 

 hirsuta (Polygyra), 521. 

 hirsutum (Alcyonidium), 



260. 

 hirsutus (Hadrurus), 405. 

 hirsutus (Planorbis), 513. 

 hirtus (Coleps),52. 

 hirudinaceus 



(Gigantorhynchus), 230. 

 Hirudinea, 315. 

 Hlrudinldae, 320. 

 Hirudo, 320. 

 hlrundoides (Eurytemora), 



343. 

 hlspida (Echinomera), 44. 

 hispida (Flustrella), 260. 

 hisplda (Lichenopora), 251. 

 hispida (Tethya).79. 

 hlspida (Trachelomonas), 



32. 

 hlspldipes (Leptodesmus), 



472. 

 histolytica (Entamoeba), 



16. 

 histrionica (Limnesia), 



452. 

 hofmanni (Castrada), 163. 

 holmani (Chirocephalus), 



330. 

 Holomisis, 91. 

 Holophrya, 51. 

 Holopidae, 621. 

 Holopus, 621. 

 Holosticha, 62. 

 Holostomata, 187. 



Holostomum, 188. 

 Holothuria, (;4S. 

 Holothuriidao, 648. 

 Hol(»thurioidoa, 646. 

 Ilolotrichida. 50. 

 Ilomarus, 389. 

 hominis (Babesia), 47. 

 hominis (Sarcopte.s), 440. 

 Homocoela, 75. 

 Hookworm, 223. 

 hooperl (Stylactis), 100. 

 Hoplonemertea, 209. 

 Hoplorhynchus, 45. 

 Horny mites, 442. 

 Horse leech, 320. 

 Horse mussels, 572. 

 Horse sponges, 84. 

 Horseshoe crabs, 400. 

 hortensis (Arion), 527. 

 hortensis (Helix), 520. 

 hortorum (Leucauge), 427. 

 hufelandi (Macrobiotus), 



458. 

 humilis (Lymnsea), 510. 

 huxleyi (Oikopleura), 659. 

 huxelyi (Pauropus). 467. 

 hyacinthi (Rhizoglyphus), 



442. 

 hj-acinthina (Periphylla), 



128. 

 Hyalea, 498. 

 Hyalella, 367. 

 hj-alina (Cryptops), 475. 

 hyalina (Daphnia), 335. 

 hyalina (Leptodora), 338. 

 hyalina (Lyonsia), 600. 

 hyalina (Schizoporella), 



257. 

 hj'alinis (Pamphagus), 21. 

 Hyalonema, 77. 

 Hyalonematidae, 77. 

 Hyas. 395. 



hyatti (Rossia), 609. 

 Hybocodon, 102. 

 Hyctia, 435. 

 Hydatina, 237. 

 Hydatinidae, 237. 

 Hydra, 92. 

 Hydrachna, 449. 

 Hydrachnidae, 447. 

 Hydrachninae, 449. 

 Hydractinia, 100. 

 Hydractinlidae, 99. 

 Hydrallmania, 108. 

 Hydranth, 91. 

 Hydrariae, 92. 

 Hydrobiidae, 541. 

 Hydrocaulus, 91. 

 Hydrocladia, 108. 

 Hydrocorallinae, 93. 

 Hydroid type of structure, 



87. 



Ilydroidt's. .302. 

 Hydrolds. 86. 

 Hydromedusae, 90. 

 Hydrorhiza,91. 

 Hydrothoca. 104. 

 Ilydrozoa, 90. 

 Ilydryphantes. 449. 

 Hydryphantinac, 449. 

 Hygrobates, 450. 

 Hygrobatinae, 450. 

 Hymenolepis, 199. 

 Hyperia, 365. 

 Hyperiidae, 365. 

 Hyperiidea, 365. 

 hypnorum (Aplexa), 512. 

 Hypobranchial gland, 528. 

 Hypopus, 441. 

 Hypostome, in hydroid.s, 



91 ; in mites, 436. 

 Hypotrichida, 60. 

 Hyptiotes, 418. 



IBLA, 360. 

 Ichthydium, 244. 

 Ichthyobdellidae, 317. 

 idae (Cristatella), 264. 

 Idothea, 376. 

 Idotheidae, 376. 

 Idyia, 154. 

 lllecebrosus 



(Ommastephes), 610. 

 lllinoisensis (Pleodorina), 



38. 

 Illoricata, 235. 

 illuminatus (Bdellodrilus), 



306. 

 Ilyan.assa, 558. 

 imbicilis (Anodonta), 582. 

 Imbricata (Dermasterias), 



628. 

 imbricata (Harmothoe), 



285. 

 immaculata (Natica), 538. 

 immaoalata ( Scutlgerella ) , 



466. 

 immitis (Filaria), 219. 

 imparispinosus 



(Amphiporus), 211. 

 imperator 



(Branchiocerianthus), 91. 

 Imperforina, 20. 

 Imperial purple, 555. 

 implexa (Filograna), 302. 

 implicata (Anodonta), 581. 

 impressa (Loxochonca), 



356. 

 impressus (Parajulus), 469. 

 Incisa (Nephthys), 289. 

 incolorata (Persa), 120. 

 inconstans (Trichodrilus), 



311. 

 Indentata (Vitrea), 525. 



