INDEX 



551 



hians, Halicornaria, 199, 237. 



Plumularia, 237. 

 hibernicus, Campylodiscus, 51. 

 hiltonianus, Asteromphalus, 30. 

 hirsutispina, Rhopalocidaris, 275. 

 hirsutispinus, Cidaris (Discocidaris), 



272. 

 hirtus, Hyalodiscus, 84, 93, 178. 

 hispida, Melosira, 92. 

 hispidus, Actinoptychus, 14. 

 Histocidaris, 245. 



acutispina, 247, 248-249 (fig.), 

 307, 310. 



elegans, 247, 250, 252-253 (fig.), 

 307, 310. 



magnifica, 244, 245, 246-247 (fig.), 

 307, 310. 



misakiensis, 255. 



recurvata, 256. 



sp., 254, 255 (fig.), 307, 310. 

 hodgsonii, Campylodiscus, 51. 

 honshuensis, Amphora, 25. 

 horologium, Actinodiscus, 29. 



Campylodiscus, 52, 54. 

 horridus, Coscinodiscus, 65. 

 hospes, Cocconeis, 63. 



Navicula, 104. 

 huerteli, Diphasia, 199, 218, 241. 

 humilis, Coscinodiscus, 175. 



Willemoesia, 175. 

 hyalina, Amphora, 24. 

 hyalinum, Bacteriastrum, 57. 

 Hyalodiscus, 58, 83, 84, 93. 



annulus, 83, 178. 



argus, 83. 



aspersus, 83, 178. 



cervinus, 65, 84. 



hirtus, 84, 93, 178. 



laevis, 84. 



maximus, 85. 



propeplanus, 84, 178. 



radiatus, 85. 



stelliger, 85. 



subtilis, 12, 84, 85. 

 Hyalosira punctata, 141. 

 hybrida, Surirella, 155. 

 Hydroida of the Philippine region, 195. 

 hydrophana, Bulimus, 409. 



Bulimus (Orthostylus), 409. 



Cochlostyla, 409. 



Cochlostyla (Cochlostyla), 407, 408. 



Cochlostyla (Cochlostyla) hvdro- 

 phana* 408, 409. 



Cochlostyla metaformis, 409. 



Helicostvla, 409. 



Helix, 409. 



Helix (Cochlogena), 409. 

 hydrophanus, Bulimus, 409. 



Cochlodryas, 409. 

 Hydrosilicon, 85. 



rimosa, 85. 

 Hypselostyla (subg.), 435. 

 Hvpselostvla cincinniformis, 441. 

 Idia pristis, 199, 207, 217. 

 ilinensis, Obba marmorata, 338, 341, 

 360. 



116415—39 4 



ilogana, Cochlostyla (Chrysallis) as- 

 persa, 502, 503, 517. 



Helicostvla (Chrysallis) mindoroen- 

 sis, 531. 



Obba sarcochroa, 355. 

 imitans, Navicula, 104, 179. 



Surirella, 155, 181. 

 imitatrix, Mastogloia, 89, 179. 

 imperator, Branchiocerianthus, 198,200. 



Monacaulus, 200. 

 imperialis, Campylodiscus, 50, 52. 

 impleta, Navicula, 119. 

 impressa, Biddulphia, 40. 



Navicula, 103, 121. 

 incanum, Cerion, 454. 

 incertus, Campylodiscus, 49, 50, 52,55. 

 incompta, Melosira, 93, 179. 

 incurvata, Surirella, 154, 156. 

 indica, Biddulphia, 41. 



Navicula, 104. 



Stereocidaris, 303. 

 indigens, Navicula, 105, 179. 

 inelegans, Biddulphia (Triceratium), 42. 



Trigonium, 169. 

 inermis, Hercotheca, 82, 178. 



Stephanopyxis turris arctica, 93. 



Triceratium robertsianum, 47. 

 inexacta, Navicula, 8, 104, 105, 118, 179. 

 inflata, Achnanthes, 11. 



Amphora, 8, 24. 

 inflatum, Dimeregramma, 73. 

 informis, Biddulphia, 41, 177. 

 infuscata, Helix, 387. 

 ingens, Navicula, 103, 105, 179. 

 inglorium, Trigonium, 169. 

 inhalata, Navicula, 107, 179. 

 inopinus, Campvlodiscus, 52. 

 inornata, Diphasia, 199, 219, 241. 



Triceratium eulensteinii, 166, 167. 

 inornatus, Hemidiscus, 80. 

 insecta, Auricula, 33. 

 insignis, Biddulphia, 41. 



Cocconeis, 63. 



Craspedodiscus, 71. 



Navicula lvra, 108. 



Nitzschia, 127, 180. 

 intercedens, Navicula, 7, 107. 



Surirella, 156. 

 intermedia, Navicula (Diploneis) Cyn- 

 thia, 101. 



Terpsinoe, 160. 

 intermedium, Pleurosigma, 132. 

 intermedius, Campylodiscus, 50, 52. 

 interrupts, Amphora, 24. 



Biddulphia, 44. 

 intersecta, Amphora, 24, 176. 

 invenusta, Navicula, 107. 

 inversa, Biddulphia, 41, 177. 

 Iphione, 183. 



muricata, 183. 

 Iphionella elongata, 313, 315 (fig.), 

 iridis, Navicula, 107, 133. 

 ishikawai, Halicornaria, 238. 

 islandica, Grammatophora, 79. 

 Isthmia, 85. 



capensis, 85. 



