INDEX. 197 
Axohelia mirabilis, ii. 152, 153. Bathymetrieal range, of mollusea, ii. 10. 
Ayres, i. 43. of ophiurans, i. 168. 
of sponges, ii. 11. 
Bache, A. D., i. 45. of sea-urchins, ii. 10. 
on Gulf Stream in 1845, i. 252. of starfishes, 11. 10. 
Baer, K. E. v., on eastern extension of Gulf | Bathyonomus giganteus, ii. 48, 49. 
Stream, i. 252. ; Bathypterois quadrifilis, ii. 32. 
Bahama Bank, eastern slope of, i. 96, 104. | Bathysaurus Agassizii, ii. 32, 33. 
formation of, i. 69. Baur on range of pelagic animals, i. 200. 
land shells of, i. 116. Behring Strait eurrent, i. 243. 
slope of, i. 288. Belknap, Geo. E., i. 6. 
Bahama Banks, structure of, i. 75, | sounding cylinder, i. 3. 
Bahama plateau, i. 75. | Bellerophon, i. 190. 
Bahia Honda, i. viii. ; Bemini, Straits of, i. 137. 
Bailey, i. 3. | current flowing north through the, i. 234. 
on Atlantic globigerine, i. 146. | Benthacetes Bartletti, ii. 47. 
on Atlantic ooze, i. 45. Benthodytes gigantea, ii. 87. 
on greensand of Zeuglodon limestone, | Benthosaurus grallator, ii. 52, 
i. 278. | Benthoteuthis, ii. 61. 
Baird, S. F., U. S. Fish Commissioner, i. 50. | Bergh, R., on Bathydoris abyssorum, ii. 02. 
Baltieina finmarchica, ii. 142, 143. ' Bermuda sea-serpent, ii. 28. 
Barathrodemus manatinus, ii. 25. | Bermudas, not inhabited by Caribs, i. 118. 
3arathronus bicolor, ii. 25. | origin of fauna and flora of, i. 110. 
Barbados, island of, i. xix. | recent origin of, i. 117. 
limestone terraces of, i. 63, Rein on the, i. 80. 
Barbuda, island of, i. xix. to West India islands, ocean bed from, 
Bartlett Deep, i. 100, 226. | i. 02. 
Bartlett, John R., i. viii. | vegetation of, i. 117. 
exploration of Caribbean, i 50. ' Berthold, on bathymetrieal range of alge, 
on current passing over ridge of wind- , 1. 912. 
ward passage, i. 202. | Beryx splendens, ii. 27. 
on deep-sea sounding and dredging, i. | “Bibb,” i. 51. 
bl | Biflustra macrodon, ii. 82. 
on path of warm water in Gulf of Mexico | Biloculina clay, ii. 160. 
and Caribbean, i. 255. | Pourtalds on, ii. 160, 
on Pentacrinus off Santiago de Cuba, | Sars on, ii. 160. 
ii. 6. | Biloculina ringens, ii. 159. 
on rip off Charleston, i. 254. | Jiloeulina tenera, ii. 100. 
on Sargassum, i. 211. ' Bird fauna of West Indies, i. 114. 
on temperature sections of Caribbean , Birds, effects of currents on distribution of, 
and of Gulf Stream, i. 217. i. 120. 
on temperature sections between the | " Blake," i. 51. 
West India Islands, i. 218. | ** Blake,” plan of deck of, i. 33. 
Barrett and Andrews, i. 43. | eruises of, i. vill, xi, xix, 38. 
Barrett, survey of Alacran, i. 70. rich dredgings by, off the West India 
Bathometer, Siemens, C. W., i. 6. islands, ii. 12. 
Bathybius, Haeckel on, i. 204. small size of, i. 32. 
8, i 24. 
{ * Blake" dredges, 
Bathygadus areuatus, ii. 26, 27. Blake Plateau, i. 96, 135. 
| 
| 
Bathymetrical faunal subdivisions, i. 162, | deposits on steep slope of, 1. 277. 
| ` 
| 
Bathydoris abyssorum, ii. 62. 
163. swept clean, i. 250. 
Bathymetrical range, of corals, ii. 11. ' Bland, on land shells of West Indies. i. 115. 
of crinoids, ii. 10. | Blennies, ii, 29, 
of erustacea, ii. 9. 3lind fishes, 1. 308, 
of fishes, ii. 8. | Blind invertebrates, i. 307. 
Y . .. a 4 H NO 
of gorgonians, ii. 11. | Block Island soundings, i. 272. 
