214 
Radiaster elegans, ii. 104. 
Radiella sol, ii. 179. 
Radiolarian earth of Barbados, ii. 157. 
Radiolarian ooze, i. 266. 
Radiolarians, Johannes Müller on yellow cells 
of, i. 213. 
£. Haeckel on yellow cells of, i. 213, 
siliceous species of, ii. 157. 
Raised terraces of Caribbean district, ii. 19. 
Ramsay on geological time, i. 199. 
Range of species, ii. 12. 
Rawson, Rawson W., ii. 123. 
Reade, M., on chemical denudation, i. 128. 
Record of dredging and trawling, i. 92. 
Red clay deposit, i. 267. 
basin of, in Eastern Atlantic, i. 293. 
basin of, in South Atlantic, i. 209. 
discovery of, by ‘‘ Challenger," i. 292. 
in Western Atlantic, i. 202. 
slow rate of accumulation of, i. 268. 
Redonda, island of, i. xvi. 
Regadella phonix, ii. 172, 173. 
Regalecus Jonesii, ii. 28. 
Regnard and Certes on decay at great 
depths, i. 203. 
Regnard on effect of pressure, i. 305, 314. 
Rein on undermining of Bermuda, i. 87. 
Renard on St. Paul's Rocks, i. 127. 
Rennell, i. 247. 
Reophax scorpiurus, ii. 163. 
Reptiles, distribution of, by driftwood, i. 
122. 
relation of West Indian, i. 115. 
Retepora reticulata, ii. 82. 
Reuss on tertiary corals, ii. 18. 
Reynolds, E. L., i. viii, 92. 
Rhabdammina abyssorum, ii. 162, 163. 
Rhabdammina linearis, ii. 163. 
Rhabdocidaris, radioles of, ii. 90 
Rhabdoliths, i. 209. 
Rhabdospheres, i. 209. 
Rhamphobrachium Agassizii, ii. 55. 
Rhizochalina, ii. 177. 
Rhizocrinus, dredged by Pourtalès, i. 285. 
discovery of, i. 43. 
fields of, ii, 118. 
range of, ii. 15. 
Rhizocrinus lofotensis, ii. 120, 121. 
Rhizoerinus Rawsoni, ii. 121. 
Rhizopod earth of Barbados, i. 79. 
Rhizopods, ii. 157. 
association of arenaceous and siliceous, 
ii. 158, 
calcareous, living on bottom, ii. 159. 
Goés on Caribbean, ii. 157. 
Rhizophysa, i. 185. 
INDEX. 
Rhizophyside, ii. 133. 
Rhizostomæ, live on bottom, ii. 130. 
Rhizotrochus fragilis, ii. 151. 
Rhombodichthys, i. 175. 
Rhynchopygus caribæarum, ii. 97. 
Ribbon fishes, ii. 28. 
Ridge, between Atlantic and Arctic oceans, 
i. 242. 
from Santa Cruz to Porto Rico, i. 98, 
112. 
Ringgold, i. 48. 
Ringicula leptocheila, ii. 69, 70. 
Ringieulidse, ii. 69. 
Rocinela oculata, ii. 48. 
Rocky banks off the Carolinas, i. 276. 
Rodgers, i. 48. 
Roebling and Sons, wire rope ot, i. 29. 
Rogers, H. D., on character of Florida, i. 
67. 
Rogers, W. R., i. 47. 
Rondelet's Medusa head, ii. 113. 
Ross, James, i. 99. 
Jas. C., i. 42, 44. 
Rosses on deep-sea temperatures, i. 46. 
Rugosa, Ludwig on, ii. 154. 
Milne-Edwards and Haime on, ii. 154. 
Ryder on organs of lateral line, ii. 30. 
Saba Bank, i. xv. 
Saba, island of, i. xv. 
Sabinea princeps, ii. 45. 
Sagartia abyssicola, ii. 147. 
Sagitta, i. 193. 
Sagrina dimorpha, ii. 166. 
Saintes, the, i. xvi. 
Salenia, i. 158; ii. 90. 
apical system of, ii. 01. 
suranal plates of, ii. 91. 
young, ii. 92. 
Salenia Pattersoni, ii. 90, 91. 
Salenia varispina, ii. 90, 91. 
Salinity of sea water, i. 300. 
Salpa, i. 187. 
large solitary form and chain, i. 189. 
masses of, i. 171. 
Salpa Caboti, i. 190. 
Salpæ, sudden appearance of, i. 190. 
Salts, distribution of by animals, i. 159. 
Sander Rang on Holopus, ii. 128. 
Sandy bottom of East Coast, i. 285. 
Sandy deposits, where found, i. 270. 
Santa Cruz, ‘‘ Albatross’’ on ridge between 
it and Porto Rico, i. 08. 
connection with Porto Rico and St. 
Thomas, i. 112. 
island of, i. xiv. 
