209 
Mediterranean, great changes in eastern basin 
INDEX. 
Macrocystis, i, 313. 
Macropneustes, i. 159, 160. 
Macropneustes spatangoides, ii. 98. 
Macruroids, ii. 26. | 
Maerurus Bairdii, ii. 26, 27. | 
Maerurus caribbeus, ii. 26, 27. 
Madagasear, relation to Africa, i. 120. 
Madrepora cervicornis, i. 82, 86. 
Madrepora palmata, i. 70, 83. 
wall of, i. 70. 
Madrepora prolifera, i. 81, 82. | 
Mwandrina areolata, i. 82. | 
Maffitt and Craven on Gulf Stream globige- | 
rine, i. 45. 
Magnaghi, i. 41. 
Maioidea, ii. 37. 
Malacosteus niger, ii. 34, 85. 
Maldane cuculigera, ii. 54. 
Mallet on primordial ocean, i. 153. 
on atmosphere of steam, i. 128. 
Malmgren, i. 42. 
Malthe, ii. 31. 
Mammals, distribution of, by driftwood, i. | 
122, | 
Manatee bones, i. 282. | 
Pourtalès on, i. 144. | 
Manganese concretions and phosphate of 
lime, i. 275. 
Manganese nodules, i. 141, 290. 
Mangrove islands, formation of, i. 53. 
Mangrove plants, 1. 53. 
Manicina, i. 55. 
Margarita ægleës, ii. 68. 
Marginella suceinea, ii. 69. 
Marginella Watsoni, ii. 69, 70. 
Marie-Galante, i. xvi. 
Marine animals, destruction of, i. 274, 
food of, i. 204. 
Marine deposits, character of, i. 266. 
Marine fishes in the Amazons, i. 153. 
Marine forms within 100 fathom line, i. 
142. i | 
Marine plants, distribution of, i. 312. | 
composition of, i. 262. | 
Marquesas atoll, structure of, i. 73. | 
Marquesas islands, examination of, i. 73. 
lagoon of, i. 73. 
Marshall, his tangle bar, i. 26. 
Martinique, i. 112. 
island of, i. xvi. 
Mascarene islands, relation to Africa, i. 126. 
, ii. 59. 
Mastigoteuthis Agass 
MeClintock, i. 45. 
McRea, Henry, i. 32, 
Mediterranean, contrast between northern 
and southern shores of, i. 123. 
of, i. 123. 
recent connection with Atlantie, i. 123. 
Medusee, decomposition of, ii. 128. 
deep-sea types of, ii. 128. 
of intermediate depths, 
Meiocardia Agassizii, ii. 74. 
Melanocetus, ii. 32. 
Mellita, i. 159. 
Membranipora canariensis, ii. 
Meningodora, ii. 47. 
Mentz, Geo. W., i. viii, 32. 
Meoma, i. 159. 
Merlucius, ii. 25. 
Metacrinus, ii. 116. 
Metacrinus angulatus, ii. 117. 
Metamorphoses of deep-sea animals, ii. 8. 
Mexico, Gulf of, Hydrographie Chart of, 
i, 10, 
unstable equilibrium of, i. 248. 
Mieropanope pugilator, ii. 98. 
Migration of sharks, i. 123. 
Miliolin:, i. 271. 
Millepora, Agassiz on, ii. 138. 
Moseley on, ii. 138. 
Millepora aleieornis, ii. 138, 139. 
Miller on Pentaerinus, ii. 116. 
Miller-Casella thermometer, i. 15. 
Milne-Edwards, Alph., i. 40, 44, 204. 
on fauna of antarctic region, i. 121. 
Report on Crustacea, i. xxi. 
on Sargassum, i. 212. 
Milne-Edwards and Haime on tertiary corals, 
ii. 18. 
Mississippi basin, denudation of, i. 128. 
Mississippi mud, i. 57, 131. 
fauna of, i. 282, 
Mississippi, wearing action of, i. 138. 
Mitchell, Henry, on current of Gulf Stream, 
i. 282. 
on Nicholas 
935. 
Mitra Swainsonii, ii. 70. 
Mixtopagurus paradoxus, ii. 41. 
Mnemiopsis, i. 199. 
Modiola polita, ii. 64, 73. 
Mohn, i. 44. 
Mollusk fauna of West Indies, i. 114. 
Mollusks, ii. 58. 
absence of vegetable feeders, ii. 64. 
bathymetrical range of, i. 169. 
carnivorous, ii. 05. 
Dall, W. H., Report on, i. xxi. 
distribution of, by driftwood, i. 122. 
flexible species of, ii. 65. 
inflexible species of, ii. 65, 
and Santaren chamnels, i. 
