HYDR0MEDUS7E, graptolithida. 
Cod. 19 
S. desmoidis , p. 65, pi. viii, figg. 70-72, S. incongrua , p. 69, pi. ix, figg. 81 & 
82, S. traski , fig. 83, California, Torrey, t. c. n. spp. 
Solmaris tetranema , Woods Holl region, Narcomedusa, Hargitt, Biol. Bull, 
iv, pp. 17 & 18, fig. 5, n. sp. 
Solmissus marshalli , Marshall Islands, p. 151, pi. v, figg. 23-25, Agassiz & 
Mayer, Mem. Mus. Harvard xxvi, n. sp. 
Syncoryne sarsii , habits and histology, Citron, Arch. Naturg. lxviii, i, 
pp. 1-26, pis. i & ii. 
Tiara oceanica , north of the Marquesas, p. 141, pi. i, fig. 1, Agassiz & 
Mayer, Mem. Mus. Harvard xxvi. T. intermedia , Falkland Islands 
( Tiaridce ), Browne, Ann. Nat. Hist. (7) ix, p. 277 : n. spp. 
Tiaricodon n. g. for T. ccendeus , n. sp., Falkland Islands (Tiaridce), 
Browne, t. c. p. 276. 
Tiaropsis davisii , Falkland Islands ( Eucopidce ), Browne, t. c. p. 281, n. sp. 
Trachynema digitate (Trachomedusa), variation, Hargitt, Science xvi, 
p. 344. 
Tubularia , experiments in reduction, Driesch, Arch. Entwic-kmech. xiv, 
pp. 532-538, 2 text-figg. T., grafting experiments, Peebles, Arch. 
Entwickmech. xiv, pp. 49-55, 23 text-figg. T. crocea , reproduction 
and regeneration, Torrey, Univ. Calif. Publ. i, p. 43, pi. ii, figg. 22 & 
23. T. crocea , regeneration, Morgan, Arch. Entwickmech. xiii, pp. 
528-544, 25 text-figg. T. mesembryanthemum , regeneration, Stevens, 
Arch. Entwickmech. xv, pp. 319-326, 13 text-figg. T. mesembryan¬ 
themum ,, regeneration after longitudinal splitting, Godlewski, Bull. Ac. 
Cracovie, No. 7, pp. 387-396, 11 figg. T. mesembryanthemum , histology 
of gonophores, Schneider, Lelirbuch vergleich. Hist. Jena 1902, 
pp. 609-617, text-figg. 501-504. 
T. marina , North America, Pacific Coast, characters, especially of female 
gonophores, Torrey, Univ. Calif. Publ. i, p. 46, pi. ii, figg. 24 & 25. 
T. parasitica , Woods Holl, on Corymorpha pendula , Hargitt, Amer. 
Natural, xxxvi, p. 549, fig. 1 : n. spp. 
Turris pelagica, Tropical Pacific, p. 142, pi. i, fig. 2, Agassiz & Mayer, 
Mem. Mus. Harvard xxvi, n. sp. 
Vallentinia n. g. for V. falklandica , n. sp. (Pet a si dee), Browne, Ann. Nat. 
Hist. (7) ix, p. 284. 
Yelella swarm at Mentone, Thompson, Nature lxv, p. 560, and at Alassio, 
Sherrington & Thomas, t. c. p. 586. V. spirans , histology, Schneider, 
Lelirbuch vergleich. Hist. Jena 1902, p. 597, text-fig. 492. 
Willia mutabilis , Falkland Islands ( Williadce ), Browne, Ann. Nat. Hist. 
(7) ix, p. 280, n. sp. 
III. graptolithida. 
[The following memoirs refer to Graptolithida :—Almera (5), Barrois 
(8), Clark (24), Hall (67), Kerforne (92 & 93), Moberg (112 & 113), 
Tornquist (169), Wiman (183).] 
SUBJECT INDEX. 
Geography. 
tBaltic, Silurian forms, n. genera and spp., Wiman (183). 
fSweden, Phyllo-Tetragraptus beds, 8 n. spp., Tornquist (169). 
tlreland, north-east, Silurian spp., Clark (24). 
tBrittany, Monograptus convolutus , and other spp., Kerforne (92). 
tAnjou and Llandovery, Kerforne (92). 
tBarcelona, Almera (5). 
tCatalonia, Barrois (8). 
+New South Wales, 4 n. spp., Hall (67). 
