366 
INDEX. 
Neothauma, varieties of, in Tanganyika, 
149, 150. 
Nyanzas, the, number of species in the, 
146. 
Nyanza, Albert Edward, the, 130. 
,, ,, ,, , altitude of, 
130- 
,, ,, ,, , fauna of, 130, 
144. 
,, ,, the, altitude of, 129. 
„ ,, , fauna of, 129, 144. 
,, Victoria, character of, 131. 
,, ,, , fauna of, 130. 
Nyassa, aqueous deposits about, 35, 43, 65. 
,, , baobab beaches on, 70, 12 1. 
,, , deposits, south of, 71. 
,, , downthrust on, 53. 
,, , extent of, 122. 
,, , faulting on, 421. 
,, , fauna of, 3, 73, 121, 124, 125, 126, 
147, 328. 
,, , fishes of, 124. 
,. , floor of, sinking, 44, 70, 71. 
,, , geological characters of, 35, 43, 
58, 61, 70. 
,, , level of, changes in, 70, 122, 123. 
,, , number of species in, 146. 
,, , park -lands of, 108. 
,, , position of, 35. 
,, , post pleistocene activity round, 43. 
,, sandstones, 42, 61, 62. 
,, , section, a, through the south of, 40. 
,, ,, ,, north of, 42. 
,, and Shirwa, 70. 
,, valley, 41, 42, 48, 49, 73, 122. 
,, ,, , upthrust in, 43, 49, 55. 
ONUSTUS, AFFINITIES OF, 330. 
Oolitic fossils, affinities of, 346, 350, 352. 
Opisthobranchs, affinities of, 274. 
Origin of fresh-water faunas, 11, 12, 13, 
15, 17, 18, 20. 
PAL/EMON MOOREI, 291. 
Palaeontological evidence of first appear- 
ance of fresh - water 
faunas, 16, 25. 
Paramelania, 218. 
,, , affinities of, 266, 336, 342, 
344- 
,, crassigranulata, 150. 
,, ,, , description 
of, 245. 
,, crassilabris, of von Martens, 
238. 
,, damoni, affinities of, 130, 
272, 346. 
,, ,, , description of, 244. 
„ of Tanganyika, 334, 336. 
,, , variations in, 150. 
Paratilapia aurita, description of, 178, 
,, bloyeti, 128. 
,, ,, , description of, 178. 
,, calliura, description of, 178. 
,, cavifrons, 130. 
,, dewindti, description of, 180. 
,, dimidiata, 124. 
,, furcifer, description of, 181. 
,, intermedia, 124. 
,, leptosoma, description of, 182. 
,, livingstonii, 124. 
,, longiceps, 124. 
,, longirostris, 130. 
,, macrocephala, 128. 
,, macrops, description of, 179. 
,, moeruensis, 128. 
,, modesta, 124. 
,, nigripinnis, description of, 184. 
,, nototsenia, 124. 
,, pfefferi, description of, 178. 
,, retrodens, 130. 
, , robusta, 1 24. 
,, serranus, 130. 
,, stenosoma, description of, 182. 
,, ventralis, description of, 180. 
,, vittata, description of, 176. 
Park-lands, African, 107. 
,, ,, , a clue to the forma- 
tion of, 1 13. 
,, ,, , description of, 108. 
,, , and the struggle for existence, 
1 18. 
,, , attempts to account for the 
existence of, 110. 
