18 Gc&l 
XVI. CCELENTERATA. 
[ 1905 ] 
Grammaria abietina , Norway and N. Sea, Broch (22) p. 15. 
Halecium , sp. spermatozoon, figg., Retzius (146) p. 80 ; H. beauii , grown 
in running water from a colony of B. halecinum , Hallez, C.R. Ac. Sci. 
cxli, pp. 728 & 729, 1905 ; H. halecinum , Skerries, co. Dublin, Colgan, 
Irish Natural, xiv, p. 2u9, 1905 ; H, halecinum , on Panopcea norvegica, 
H. beauii , II. labrosum, U. sessile, N. Sea, Broch (22) pp. 8 & 9 ; H. 
, halecinum, B. labrosum , H. tortile , II. scutum, H. sessile, N. Cape, 
, II scheideri, Norway, Bonnevie in Nordgaard (128) p. 157; II 
i tenellum, fig., Antarctic, Hartlaub, Exp. Antarct. Belgica Zool. 1904, 
, p, ,13 ; B. halecinum , Kiasr (103) p. 73. 
Halicystus octoradiatus , Faroes, Maas (113) pp. 43 & 44. 
Ifaleremita parvula n. sp., St Yaast-la-Hougue, Billard, Bull. Mus. 
Paris 1904, p. 561. 
Halicreas papillosum, E. Indies, S. Sea, figg., Maas (115) pp. 56 & 57. 
Halopsis ocellata, regeneration and double manubria, N. E. Coast America, 
Hargitt (86) p. 51. 
Halistemma rubrum , ontogeny, figg., Woltereok, Zeitschr. wiss. Zool. 
lxxxii, pp. 611-626. 
Heterotiara n. gen. anonyma n. sp., figg., D. E. Indies, Maas (115) pp. 18 
& 19, 
Hippocrene pyramidata ( = Margelis Browne), note, dimensions, Firth of 
Clyde, Browne (24) p. 751 ; II ( Bourgainvillea ) super ciliaris, figg., 
Spitzbergen, Maas (113) p. 9. 
Bybocodon prolifer, Valencia Harbour, M. & C. Delap, 1. c. p. 9 ; H. 
prolifer ( — Amphicodon amphipleuris Hseckel), Hydroid unknown, 
Firth of Clyde, Browne (24) p. 752 ; II prolifer, fig., notes morphol., 
N. E. Coast Amerioa, Hargitt (86) pp. 33 & 34. 
Hydra , discussion of systematic, II. viridis, spermatogenesis, detailed 
figg., II fusca, spermatogenesis, figg., II. dioecea, spermatogenesis, 
figg., Downing, Zool. Jahrb. Anat. xxi, 3, pp. 379-427 ; H. oligastis , 
Lake Kaba, note, Meissner, Trudui Kazan Univ. xxxix, pt. 3, p. 329; 
, II. vulgaris (?) from Calcutta, descript, with notes on habits, Annan- 
dale, J. Asiat. Soc. Bengal i, 1905, No. 3, pp. 72 & 73. 
Bydractiniidie, discussion of the family, Hydractinia aculeata, fig. 
{ — Hydra and Podocoryne A.) on Murex, H. fucicola , synons., fig., 
note on spines, H. pruvoti n. sp., figg., bibliography, Motz-Kosswska, 
, (124) pp. 81-96 ; H. echinata, H. camea, both on Pagurids , N. 
Sea, Brooh (22) p. 7; H. angusta n. sp., figg., Antarctic, Hartlaub, 
, , Exp. Antarct, Belgica Zool. 1904, p. *7 ; H. echinata, Norway, Bonnevie 
in Nordgaard (128) p, 156 ; II. pruvoti n. sp., on shell of Cassidaiia , 
inhabited by Pagurus, Balearic Isles, de Buen, Bol. Soc. espan. y, 
... No. 10, p. 517. 
Hydrallmannia, gen. defined, p. 18, H. falcata, Norway, Broch (22) 
p, 21 ; H. falcata, rheotropism, Hallez, C.R. Ac. Sci. cxli, p. 841, 
1905 ; II. fulcata, Norway, Bonnevie in Nordgaard (128) p. 157 ; 
B. falcata, Skerries, Co. Dublin, Colgan, Irish Natural, xiv, 10, 
p. 209, 1905. 
Irene ceylonensis n. sp., figg., Ceylon, I. palkensis n. sp., figg., N. Ceylon, 
. Browne (26) pp. 140 & 141 ; I. pellucida { — Geryonia Uill.), Clyde, 
. Browne (24). pp. 761 & 762. 
Irenopsis hexanemalis , figg., genus defined, Sulu Is., Maas (115) pp. 36 
& 37 ; I. hexanemalis ( = Phialidium tenue Browne, 1904), figg., Palk 
Bay, Ceylon, notes on genus, Browne (26) pp. 142-144. 
Lafo'ea antarctica n. sp., fig., on Bryozoon, Antarctic, near to L. serpens, 
L. plicata n, sp., Antarctic, Hartlaub, Exp. Antarct. Belgica Zool. 
1904, pp. 11 & 12; L. calcarata, synons. (Ilebella rejected), on 
i., Thujaria, Red Sea, Billard, Bull. Mus. Paris 1904, p. 482; L. 
serpens, L. pygmea, on other Bydrida, L. dumosa (cf. L. fruticosa 
