HYDROZOA. 
Ccel. 19 
Sars and Z. gracillima Alder.), Z. gracillima , N. Sea, Broch (22) 
pp. 13 & 14 ; Z. serpens , Norway, Z. abietina , N. Cape, Z. gracillima , 
Ing0 Sea, Z. dumosa , Hammerfest, Z. fructuosd , Norway, Z. sym- 
metrica, Bonnevie in Nordgaard (128) p. 157. 
Laodice calcar ata, Valencia Harbour, M. & C. Delap (43) p. 12 ; Z. 
cruciata , Monaco, notes on Thauma.tiidce , Maas (113) pp. 17-19 ; 
Z. indica n. sp., figg., W. Ceylon (nearest to Z. calcarata ), Browne, 
t. c. p. 136 ; Z. fiqiana var. indica , figg., Manipa Straits, Maas (115) 
p. 25. 
Laomedea. geniculata , Z. longissima i L. hyalina , Z. gracilis , N. Sea, Broch 
( 22) pp. 12 & 13. 
Lar sabellarum , Valencia Harbour, M. & 0. Delap (43) p. 9 ; Z. 
sabellarum (= Willsia stellata Forbes), descript, specimen with two 
stomachs, Firth of Clyde, Browne (24) p. 753. 
Lictorella (?) operculata n. sp., figg., Antarctic (fragment), Hartlaub, 
Exp. Antarct. Belgica Zool. 1904, p. 12. 
Liriopc tetraphylla ( = \Geryonia Cham., t Liriantha Haackel), Ceylon, 
Browne (26) p. 152 ; Z. tetraphylla , note on genus, Manipa 
Strait &c., figg., Z. rosacea , figg., Z. compacta , figg., Maas (115) 
pp. 60-63. 
Lizzia grata f Woods Hole, Mass., fig., Hargitt (86) p. 39 ; Z. blondina , 
Valencia Harbour, M. & C. Delap (43) p. 9. 
Lucernaria yuadricornis , Algse, Norway, Nordgaard (128) p. 158. 
Margelis bntanica , synons., notes, Browne (24) p. 752. 
Margellium octopunctatum ( = Lizzia Forbes), Firth of Clyde, Browne, 1. c. 
p. 755 ; M. octopunctatum , Valencia Harbour, M. & C. Delap (43) p. 10. 
Melicertidium malayicum n. sp., figg., Ternate, Maas (115) p. 28. 
Melicertidium octocostatum , Valencia Harbour, M. & C. Delap (43) p. 12 ; 
M. octocostatum ( = Stomobrachium Forbes), young and adult, descript., 
note on genus, Clyde, Browne (26) pp. 163-167. 
Mesonema pensile { — M. ccelum pens. Modeer), figg., Gulf Manaar, descript., 
Browne (26) pp. 147-149; M. macrodactylum , figg., Ternate, &c., 
M. pensile , fig., Amboina, Maas (115) pp. 40-42. 
Mitrocomella polydiademata ( = Tiaropsis Romanes, 1878), descript., 
dimens., Browne (24) pp. 767-769. 
Mitrocomium assimile n. sp., fig., resembling M. cirratum , Ceylon, Browne 
( 26) pp. 137 & 138. 
Muggioea atlantica , Valencia Harbour, M. & C. Delap (43) p. 4. 
Obelia dichotoma, different rates of regeneration in still and running water, 
Billard, C.R. Soc. Biol, lvii, 1, p. 1048; 0. dichotoma , colonies, 
medusa reared, Clyde, 0. lucifera , Clyde, 0. nigra , Firth of Clyde, 
Browne (24) pp. 769-771 ; 0. Jlabellata , rheotropism in, Hallez, 
C.R. Ac. Sci. cxli, p. 841 ; 0. geniculata on Eurypodius latreilli , 
Boagle Canal, Hartlaub, Exp. Antarct. Belgica Zool. 1904, p. 6 ; 
0. nigra , Valencia Harbour, M. & C. Delap (43) p. 112. 
Oceania ; on retention of genus, 0. languida ( = Phialidium), N. E. Coast 
America, Hargitt (86) pp. 49 & 50. 
Octocanna polynema, figg., notes on genus, New Guinea, Maas (115) pp. 38 
& 39 ; 0. p. figg., Ceylon, comparison with rest of genus, Browne (26) 
p. 144. 
Octorchis gegenbauri , Valencia Harbour, M. & C. Delap (43) p. 12 ; 0. 
gegenbauri, notes, Clyde, Browne (24) p. 771 ; 0. orientalis n. sp., 
fig., intermed. stages noted, Ceylon, Browne (26) pp. 140-147. 
Olindias phosphorica n. var. malayensis , figg., measurements, Maas (115) 
pp. 44-48. 
Pandcea conica , figg., Monaco, Maas (113) p. 16. 
Pantachogon rubrum, genus defined, fig., very deep, E. Indies, S. Sea, 
Maas (115) p. 64. 
