248 
ZOOPHYTOLOGY. 
low, smooth, with two or more spines (?). Avicularia, ou the top of club- 
shaped spines, developed sparingly on any part of the margin of the cell. 
Flustra spinifera, Johnst. 'Transact, of Newcastle N. H. Soc./ vol. ii, 
p. 266, pi. ix, fig. 6. 
Flustra (?) lineata^ Johnst,, ' Brit. Zooph.' 
5. M. craticula, n. sp. Alder (p. 54, PI. ¥111, figs. 3, 3 a). _ 
Cells in linear series, small, oval ; margin with five to seven spines on 
each side, which are shining, flattish at the edges, and lie closely over the 
aperture ; one or two of the uppermost spines are erect, long, and cylindrical. 
Ovicapsule rather small, smooth, and cylindrico-globose, with a rib across 
the middle. _An avicularium generally at the top of the ovicapsule, some- 
times at its side. 
Hah. Deep water. 
6. M. Flemingii, Busk. Cat., p. 58, pi. Ixi, fig. 2 ; pi. Ixxxiv, figs. 4, 
6, 6; pi. civ, figs. 2, 3, 4. Alder, p. 55, PI. VIII, fig. 4. 
7. M. Fouilletii, Audouin. 
Cells ovate, broadish below, rather larger than in M. Fleminp^ and without 
the inner expansion ; margin granulated with a thin rim ; spines four or six, 
round the top of the cell, short ; one only, on each side, visible below the 
ovicapsule. Ovicapsule large, globose, or elongated, strongly granulated and 
occasionally perforated. Avicularia dispersed ; sometimes a small one on 
each side of the ovicapsule. 
M. memhranacea, Johnst. 
M. Fouilletii, Audouin, 'Expl.' I, p. 240; Savigny, 'Egypt,' pi. ix, 
fig. 12. 
8. M. unicornis, Pleming, (p. 56, PI. VIII, fig. 6). 
Cells stout, oval ; margin granulated, with two spines on each side near 
the top, one of which is usually covered by the ovicapsule. Ovicapsule sub- 
cj'lindrical, smooth, with a strong rib above the margin and surmounted by 
a conical avicularium. 
Flustra wiicornis, Pleming. 
Mem. memhranacea., Johnst. (pars). i . 
Lepralia squama^ Dalyell. 
2. Pam. Cellulaeiad^. 
1. Bugula, Okeu. 
B.fastigiata, Pab. Alder, p. 59. 
Polyzoary one to four inches high, stout, bushy, irregularly branched ; 
becoming purplish or rusty-red when dry; cells biserial, cylindrical, 
elongate, attenuated below ; aperture wide above, elliptical below, with a 
stout cylindrical jointed spine at the upper and outer angles, and a denticle 
in front of it ; no spine at the inner angle. Avicularium large, with a 
longish beak. Ovicapsules very shallow. 
Sertularia fastigiata, Pab. 
Cellularia fastigiata., Pleming, Dalyell. 
Cellularia plumosa, Johnst., ' J3rit. Zooph.,' p. 341, pi. Ixi. 
Hab. Laminarian zone. Very common, 
3. Pam. SALICOENARIADiE. 
1. Salicornaria, Cuvier. 
1. S. sinuosa, Has sail. 
