INDEX 



561 



pulchrior, Cochlostyla (Prochilus), 458. 



Cochlostyla virgata, 457. 



Helicostyla virgata, 457. 



Helicostyla (Prochilus) virgata, 

 457. 

 pulverulenta, Navicula, 117, 180. 

 punctata, Biddulphia, 44, 48. 



Grammatophora, 79. 



Hyalosira, 141. 

 punctatum, Trigonium, 169-171. 

 punctulatus, Actinocyclus, 12, 13. 



Campylodiscus, 7, 54. 

 pustulatus, Coscinodiscus, 69. 

 Pycnotheca, 197. 

 pygmaea, Biddulphia, 44. 

 Pyxidicula, 76. 

 Quadras, J. F., 375. 

 quadrasi, Amphidromus, 500. 



Opisthoporus, 323-325. 



Opisthoporus quadrasi, 324, 325, 

 327. 

 quadrasi subsp., Opisthoporus, 327. 

 quadratum, Pleurosigma, 133. 

 quadratus, Auliscus, 33, 177. 

 quadriceps, Porpeia, 140. 

 quadridens, Thuiaria, 199, 214. 

 quadridentata, Pasythea, 199, 220. 

 quadridentata, Sertularia, 220. 

 quadrigibbum, Plagiogramma, 131. 

 quadrilateralis, Thuiaria, 214. 

 quinquecostata, Mastogloia, 91, 179. 

 quinquelobata, Amphipentas, 34. 

 quinquelobatum, Trigoniurn, 171. 

 rabenhorstianus, Campylodiscus, 8, 54. 

 radcliffei, Obba subhorizontalis, 355. 

 radfordianum, Trigonium, 150, 171. 

 radfordianus, Stictodiscus, 150, 166, 167. 

 radiata, Biddulphia, 44. 



Rutilaria, 144. 

 radiatus, Coscinodiscus, 69. 



Hemidiscus, 80. 



Hyalodiscus, 85. 



Stictodiscus, 150. 



Zygoceros, 161. 

 radiolatum, Trigonium (Triceratium), 



171. 

 radiolatus, Cestodiscus, 171. 

 radio-punctatum, Triceratium, 42. 

 radiosus, Coscinodiscus, 68, 69. 

 raeana, Navicula, 118. 

 ralfsii, Campylodiscus, 50, 54. 

 ramosa, Aglaophenia, 232. 

 rarior, Cochlostyla (Chrysallis) chrysali- 



diformis, 470, 473. 

 rattrayanus, Campjdodiscus, 8, 54. 

 recedens, Aulacodiscus, 31, 176. 



Surirella, 157. 

 recessa, Amphora, 27, 176. 

 recta, Antennella, 199, 227, 241. 



Navicula lyra, 108. 

 rectangularis, Amphora, 27. 

 rectangulata, Navicula, 118. 

 recurvata, Histocidaris, 256. 



Obba listeri, 345, 351. 



Obbina listeri, 351. 

 regalis, Campyloneis, 55. 

 regina, Trinacria, 172. 

 reini, Cidaris (Cidaris), 292. 



reini, Cidaris (Dorocidaris), 292. 



Dorocidaris, 292. 



Stylocidaris, 292, 294 (fig.), 299, 309. 



Tretocidaris, 292. 

 reniformis, Coscinodiscus, 69, 150, 151. 



Surirella, 70, 151, 157. 

 reticulata, Biddulphia, 38, 45. 



Donkinia, 75. 

 reticulatus, Asteromphalus, 30. 



Auliscus, 33. 

 reticulum, Trigonium, 171. 

 retiformis, Biddulphia, 45, 177. 

 retinenda, Navicula, 118. 

 retrostauros, Navicula, 118, 180. 

 rex, Coscinodiscus, 66, 70. 

 Rhabdocidaris bispinosa, 258. 

 Rhabdonema, 9, 141. 



adriaticum, 141. 



arcuatum, 141. 



mirificum, 141. 



sutum, 141, 181. 

 Rhaphoneis, 61, 73, 142. 



amphiceros, 142. 



bilineata, 142. 



mammalis, 60-62. 

 Rhizoselenia, 2. 

 Rhizosolenia, 82, 142. 



hebetata, 142. 



setigera, 142. 

 Rhoicosigma, 74, 131, 132, 142. 



compactum, 143. 



oceanicum, 143. 



robustum, 143. 



weissflogii, 143. 

 rhombeum, Pleurosigma, 138. 

 rhombica, Amphora, 27. 



Navicula, 119. 

 rhomboides, Frustulia, 147. 

 rhombus, Mastogloia, 8, 91. 

 Rhopalocidaris, 272, 273. 



hirsutispina, 275. 



hirsutispina viridis, 243, 273, 274 

 (fig.), 308, 310, 311. 

 richardsoniana, Navicula, 109. 

 richi, Obba mesai, 357, 358. 

 rigens, Pleurosigma, 138, 181. 

 rigidum, Pleurosigma, 138. 

 rimosa, Hydrosilicon, 85. 

 rivalis, Campylodiscus, 55. 

 rizalana, Obba marmorata, 338, 340. 

 robertsiana, Biddulphia, 45. 

 robertsianus, Campylodiscus, 51, 55. 

 robusta, Cocconeis, 62. 



Cochlostyla (Chrysallis) albolabris, 

 493. 



Navicula, 119. 



Plagiogramma gregorianum, 130. 



Stauroneis, 112. 



Stephanopyxis, 84, 92, 93. 



Synedra, 160. 

 robustum, Pleurosigma, 136. 



Rhoicosigma, 143. 

 robustus, Asteromphalus, 30. 



Coscinodiscus, 67. 

 roissyana, Cochlostyla, 389, 394, 397, 

 398. 



Cochlostyla (Calocochlea), 381, 386, 

 391. 



