1108 
THE VOYAGE OF H.M.S. CHALLENGER. 
Tree Hill, 744, 749. 
Tree Swifts, 485, 729. 
Trees, height of, at Arrou, 547 ; looseness 
of, at Juan Fernandez, 826. 
Tremarec Islands, 344. 
Trematoda, 316. 
Tremodopus, 270. 
Tres Montes Peninsula, 849, 862. 
Tretodictyum, 451. 
“Trial,” the, 822. 
Tribulus cistoides, 184. 
Trichobranchiata, 523. 
Trichodesmivm, 218, 545, 607. 
Trichoglossus cyanogrammus, 688 ; T. 
swainsoni, 534. 
Trichormnes peltatum, 704. 
Trichostemma, 572. 
Triclinic felspar, 161, 169; see also Deposits. 
Tridacna shell, 710, 716, 721. 
Trigonia, 462, 540, 625 ; geographical 
distribution of, 462; Prof. Huxley on, 
462; Dr. E. v. Willemoes-Suhm on, 
462 ; supposed extinction of, 462. 
Trigonia acuticostata, 462 ; T. la- 
marchii, 462 ; T. margaritacea, 462 ; 
T. pedinata, 462 ; T. strangii, 462 ; 
T, uniophora, 462. 
Trinidad Channel, 865. 
Tristan da Cunha group, 238, 240, 241, 
352, 796, 908, 943. 
Tristan da Cunha, abandonment of, 246 ; 
anemometer observations at, 245 ; an- 
nexation of, 243 ; Braehyura at, 586 ; 
cliffs at, 252, 253 ; climate of, 240 ; 
coast of, 242, 245; current observations 
at, 268 ; dipsomaniac at, 248 ; the 
“Eurydice” at, 246 ; first inhabitant 
of, 243 ; flora of, 944 ; geographical 
position of, 242 ; history of, 243 ; 
houses at, 251 ; invertebrata of, 269; 
life at, 251; the Peak of, 242; present 
inhabitants of, 247 ; previous ex- 
plorations of, 240 ; rainfall at, 245 ; 
statistics regarding, 250 ; temperature 
of air at, 245 ; temperature of streams 
at, 253 ; vegetation at, 253 ; weather 
and climate of, 267 ; whalers at, 249. 
Tristan da Cunha to the Cape of Good 
Hope, 274. 
Tristania, 269. 
“Triton,” H.M.S., liv, 695; thermometric 
experiments on, 95. 
Triton, 683, 723. 
Triton Bank, 873. 
Tritoniadae, 695. 
Trochomorpha, 489. 
Trochosa, 187, 518. 
Trochus, 161, 493, 716 ; T. brychius, 897; 
T. niloticus, 710; T. porciter, 897. 
Trogons, 550. 
Trophonia wyvillei, 633. 
Tropic birds, 783, 928. 
Tropija, 889. 
Trout-like fish in Messier Channel, 864, 
866 . 
Truncatulina, 842; T. haidingerii, 912; 
T. wuellerstorfi, 912. 
Trunk-fish, 459. 
Trygon, 459, 718. 
Tua Manado Island, 605. 
Tubes, collecting, 43, 45. 
Tubinares, account of the, 323; ancestral 
form of, 329; definition of, 326; 
zoological position of, 328. 
Tubipora nvusica, 664, 689. 
Tuesday Islets, 542. 
Tuiaan, 652. 
Tulnalutan Island, 606. 
Tulunanaun, 623. 
Tulur Islands, 668. 
Tunicata, account of the, 162. 
Turbinaria, 540. 
Turbo, 129; T. pica, 129; T. transenna, 897. 
Turdus merula, 365; T. musicus, 365. 
Turner, Prof. W., 283, 474, 726, 727, 892, 
946, 1065, 1068, 1070. 
Turner, Prof. W., on bones from deep sea, 
808 ; on crania of Pacific Islanders, 
730; on crania of Sandwich Islanders, 
762; on Mesoplodon layardi, 286; 
on M. sowerbyi, 286 ; on skull of Fur 
Seal, 355. 
Turnstone, 529. 
Turritella, xliii, 490. 
Turtle, 507, 530, 729, 927; skulls of, 722. 
Turtle Island, 487. 
“Tuscarora,” U.S.S., liii, 475, 754. 
Tuscarora, 225, 226; T. belknapi, 226; T. 
bisternaria, 226; T. cygnea, 226; T. 
porcellana, 226; T. tetraedra, 226; 
T. tubulosa, 226. 
Tussock grass, 253, 254, 257, 258, 263, 321. 
Tweeddale, Arthur, Marquis of, 1065. 
Twenty-four Islands, 697. 
Twin Eocks, 701. 
Two Hills Island, 514. 
Twofold Bay, 467, 900. 
Tylaspis anomala, 900. 
Typhlonus nasus, 520, 607. 
Typhlops, 127, 
Udsi Sima, 747. 
Ukado Point, 747. 
Ulloa, Don Antonio, 823. 
Uloborus zosis, 55. 
Umbellula, 49 ; U. leptocaulis, 50, 520 ; U. ' 
miniaeea, 49 ; U. pallida, 49 ; U. 
thomsoni, ' 49. 
Umbellulidee, account of the, 50 ; habitat 
of, 51. 
Uncinataria, 447, 451. 
Undina darwinii, 844, 
Ungrau, 681 ; pile-dwellings of, 681. 
Unio, 499, 500. 
United States Coast Survey, xlvi. 
United States Exploring Expedition, xl. 
United States Fish Commission, liv, 9. 
Uruguay Eepublic, want of settled coinage 
in, 907. 
d’Urville, see D’Urville. 
CJsa Sima, 747. 
Ushant, xlviii. 
TJte, 642. 
Uvigerina, 360, 379. 
Vaccinium, 599, 787. 
Vadebra murrayi, 580. 
Valparaiso, 886, 1003. 
Valparaiso, deposits off, 850 ; description 
of, 842 ; Harbour, 849 ; surface tem- 
perature at, 849. 
Valparaiso to Cape Tres Montes, 849. 
Valve Sounding Leads, 41, 69. 
Vandola, 698. 
Vanilla in Tahiti, 788. 
“ Vansittart,” the, 346. 
Vaqueiros, or cattle herdsmen, dress of, 
232. 
Varanus indicus, 555, 729. 
“ Varuna,” the, 130. 
Varuna litterata, 586. 
Vau, 482. 
Vaudreuil rock, 865. 
“Vega” expedition, reports of, 426. 
Vegetables at Juan Fernandez, 824. 
Vegetation, at Api, 517 ; at Arrou, .547 ; 
at Browera Creek, 460 ; at Cape York, 
534 ; Indian affinities of, 534 ; at 
Christmas Harbour, 335 ; of Falkland 
Islands, 375 ; on Green Mountain (St. 
Vincent), 184 ; at Heard Island, 375, 
•943 ; of Juan Fernandez, 827, 945 ; at 
Marion Island, 299, 945 ; at Mas-a- 
fuera, 945; of Matuku, 489; of Mount 
St. Michael, 213; of St. Helena, 944; 
of St. Paul Island, 945 ; of St. Paul’s 
Eocks, 945 ; of Southeastern Moluccas, 
945; of South Trinidad, 944; of Table 
Mountain, 356 ; at Tahiti, 787 ; of 
Tongatabu, 484; of Tristan da Cunha, 
253, 944 ; at Wai Levu, 498 ; at 
Wellington, 472. 
Velaria, 644. 
Velella, 169, 218, 758. 
Venus, xliii, 346, 593. ^ 
Venus’ flower basket, 650. 
Venus, Point, 776. 
Verbenacese, 828. 
Verde Island, 624. 
Veretillidse, the, 51. 
