628 
COE LENTE RATA. 
tata, sp. n., id. 1. c. p. 149, pi. viii. figs. 17-20 (Iceland, 100 fath.) ; C. 
ohliqua, sp. n., id. ibid. pi. vi. figs. 4 & 6. 
Halecium crenulatum, sp. n., id. 1. c. p. 150, pi. viii. figs. 21-23 (Ice- 
land). 
Sertularia arctica, sp. n., Allman, Nature, xi. p. 179 (Spitzbergen). 
Gemminella, g. n., id. ibid, [anticipatory notice of P. L. S., Dec. 17th, 
1874] ; a Sertularia-\ike form, in which the hydrothecse, instead of being 
situated on the opposite sides of the stems, are all brought to the front 
of the stem, and there become adnate to one another in pairs [no type 
or locality given]. 
Sertularella polyzonias (L.), var. n. gigantea^ Hincks (9), p. 151, pi. vii. 
figs. 11 & 12, and S. geniculata, sp. n., id. 1. c. p. 152, pi. vii. figs. 13 & 14 
(Iceland); S. var. n. robusta^ Allman (1), p. 474 pi. Ixvi. fig. 3 
(North Atlantic, 203-605 fathoms) ; S. episcopus^ sp. n., id.^ Nature, xi. 
p. 179. 
Diphasia coronifera^ sp. n., Allman (1), p. 474, pi. Ixvi. fig. 2 (North 
Atlantic, 632 fath.). 
Thuiaria laxa, sp. n., id. 1. c. p. 472, pi. Ixv. fig. 1 (“ cold area,’^ 363- 
640 fath.) ; T. hippuris, sp. n., id. 1. c. p. 473, pi. Ixv. fig. 2 (640 fath.) ; 
T. salicoi'nia, sp. n., id. ibid. fig. 3 (west of Faero, 114 fath.); T. coro- 
nata and cerastium^ spp. nn., id. ibid., Nature, xi. p. 179 (Japan). 
Aglaophenia (restr.), Allman (1). Hydrocaulus pinnate ; hydrothecco 
usually with an intrathecal ridge ; nematophores fixed ; one lateral on 
each side of the orifice of the hydrotheca ; mesial adnate to its front 
for a greater or less extent ; gonangia included in corbulse, each of which 
replaces an ordinary pinna. A. dromaius, p. 475, fig. 1, and elongata, 
p. 476, fig. 2, spp. nn., id. 1. c. pi. Ixvii. (off Spain, 539 fath.). 
Macronychia ? indgnis, sp. n., id. Nature, xi. p. 179 (Ceylon). 
Halicornaria (Busk, modif.), id. (1). Differing from Aglaophenia 
(Alim.) by the gonangia not being included in corbulac, or prptected by 
gonaugial branches {PI. pennatula, Lam.). II. ramulifera, sp. n., id. 1. c. 
p. 477, pi. Ixvii. fig. 3 (“ cold area,” 640 fath.). 
Cladocarpus, g. n., id. 1. c. Differing from Aglaophenia by the 
gonangia not being included in corbulse, but borne on the sides or at the 
base of special protective branches, which are appendages of the pinnae ; 
mesial nomatophore occasionally free, not adnate to the front of the 
hydrotheca. C. furmosus, sp. n., id. 1. c. p. 478, pi. Ixviii. fig. 1 (North 
Atlantic, 167 fath.). 
Diplopteron, g. n., id. 1. c. Hydrocaulus plumose (doubly pinnate) ; 
nematophores moveable, never adnate to the hydrotheca, which is desti- 
tute of intrathecal ridge ; two pairs of lateral nematophores flanking 
the hydrotheca; gonangia not protected by corbulse or by special 
ramuli. D. insigne, sp. n., id. 1. c. p. 479, pi. Ixviii. fig. 2 (S. W. of 
Spain, 364 fath.). 
Taxella, g. n. Hydrothecse and nematophores formed on the type 
of those of Aglaophenia, but gonophores not protected by corbulse; 
ramification doubly pinnate. 2\ eximia, sp. n. Id., Nature, xi. p. 179, 
(Ceylon). 
' Stephanoscyphus mirahiiis, id. (3). Type of a new order, Thcco- 
