12 GW. 
XVI. CCELENTERATA. 
Regeneration in the egg, embryo, and adult Tubularia and Hydra, 
Morgan (89).—Regeneration in Tubularia , Morgan (90) ; Tubularia , 
Driesch (37). 
Regeneration in Tubularia mesembryanthemum , Stevens (118).—Trans¬ 
formation and regeneration in Campanularia , Loeb (79).—Regeneration 
experiments, Hydra viridis , King (71). 
Fission in Hydroids, Obelia, Billard (10) ; stolonisation in Hydroids, 
Billard (11). 
Function of the h} T drostatic bladder in Siphonophores, Ilyin (66). 
Hydra suspension from surface-film, Scourfield (113). 
Reactions of Hydra to the electric current, Pearl (106). 
Spermatogenesis of Hydra , Downing (36). 
Development of Gonothyrea loveni , Wulfert (150). 
Development of gonophores, eggs, and embryos of Cordylophora lacustris, 
Morgenstern (91). 
Origin of tentacles in Gonionemus, Perkins (107). 
Variation, Hargitt (58).—Variations of Antennidaria antennina , Bil¬ 
lard (12). 
Geography. 
Locality unknown, Sertidarella pluma, n. sp., Hartlaub (61). 
Murman Coast, a medusoid allied to Sarsia brachygaster , Linko (78). 
Atlantic plankton, Cleve (25). 
Arctic Siphonophora , Romer (110). 
Antarctic, n. spp. of Sertidarella, Hartlaub (61).—Antarctic, abysmal, 
Shipley (115). 
fEuropean Pliocene, n. spp., Vinassa de Regny (139). 
Norway, West, Hydroids, 2 n. spp., Bonnevie (16). 
tClyde Area, post-drift fossils, Smith etc. [in] Handb. Nat. Hist. 
Glasgow 1901, p. 532. 
Isle of Man, Zoophytes, Wood (49). 
Ireland, freshwater Hydra, Toppin (125). 
Normandy, 9 marine spp., Gadeau de Kerville (45). 
Lyons, Limnocodium, Vaney & Conte (131). 
Mediterranean, n. sp., Sertidarella , Hartlaub (61). 
Naples, plankton, Gunther (56). 
Madagascar, n. sp., Billard (12). 
tSumatra, mesozoic, Tornquist (126). 
Amboina and Thursday Island, n. sp., Weltner (141). 
New Zealand, Bare Island, Vancouver, Laysan, with bibliography of 
Pacific Hydroids, Hartlaub (60). 
North America, Hydromedusce monograph, Hargitt (59). 
Alaska, 53 spp., with table of distribution, Oregonian fauna, 20 n. spp., 
Nutting (98).—British Columbia and Alaska, n. spp. of Medusae, Murbach 
& Shearer (92). 
Eastern Canada, catalogue, Whiteaves (143). 
fNiagara Falls and vicinity, 2 spp. described, Grabau (53 & 55). 
Woods Holl region, 3 n. spp., Nutting (97). 
Systematic. 
Nutting, Bull. U. S. Fish Comm, for 1899, pp. 325-386, 105 figg., mono¬ 
graphs the Medusae from Woods Holl district, and the Hydroids of 
Woods Holl district. 
f Hy dr act inice general work on fossil forms, Vinassa de Regny, Mem. 
Acc. Lincei (5) iii, pp. 105-155. 
