Cellularia. 
ZOOPHYTA. CELLARIADtE. 539 
CELLARIADiE. 
Gen. LVII. CELLULARIA.—Cells in two rows, alternate, 
ovate, the openings with sessile margins ; sides of the 
branches denticulated. 
149. C. Jastlgiata.—QeH^ semicylindrical, slightly rounded 
at the top, with a blunt process at the summit on the outer side 
of each. 
Corallina cellifera erecta, ramosissima ; tenerrima, et plumosa, EUisy 
Coral. 33. t. xviii. f. 1 — Sertularia fast. Linn. Syst. 1314. — C. plu- 
mosa, Pall. El. 66 — Crisia plumosa, Lamour. Cor. Flex. 143.-—Not un- 
common, beyond low water-mark. 
Height several inches, dichotomously branched, upright, tufted, irregu- 
larly jointed ; at the lower part invested with tubular radicles from the up- 
per branches ; the cells are rather narrow, with pearly ovaria on their upper 
part. 
150. C. neritma . — Cells quadrangular, lengthened, with a 
truncated summit, the outer angle projecting. 
Snail-bearing coralline, Ellis., Coral. 35. t. xix. — Sertularia neritina, Lin7i. 
Syst. i. 1315. — Cellularia neritina, Pall. El. 67- — Acamarchis nerit. 
Lamour. Cor. Flex. 135 — On the English coast. 
Height several inches, dichotomously divided, spreading, the cells are nar- 
row, rather diverging, and more than the half of the outer summit is free ; 
the pearly, helmet-shaped ovaria, opening transversely, were at one time con- 
sidered by Ellis as the young of Neritse. I possess a specimen from the col- 
lection of the late Dr Walker, which he received from Miss Blackburne from 
the coast of Cheshire. 
151. C. Hodkeri . — Cells rounded, diverging, projecting. 
Found by Dr Hooker at Torquay, 1812. 
Height upwards of an inch, dichotomously branched, branches straight, 
stiff, brittle, divaricate ; the cells are protuberant dorsally, and their rounded 
top is nearly free, projecting laterally, giving the edge a remarkably jagged 
outline, and the pearly ovaria are rounded — I observed this species, in a col- 
lection of zoophytes obligingly presented to me by the celebrated individual 
to whom, as a mark of my respect and gratitude, I have inscribed it. 
152. C. scruposa . — Cells oval, with a projecting, lateral, trun- 
cated, pointed wing. 
Creeping stony Coralline, Ellis., Cor. 37. t. xx. f. 4. —Sertularia scrup. 
Linn. Syst. 1315. — C. scrup. Pall. El. 72 — Crisia scrup. Lamour. Cor. 
Flex. 139 Adhering to corallines, common. 
Height about an inch, creeping, and frequently sending out tubular ra- 
dicles, dichotomously divided, branches rather broad ; lateral process some- 
times denticulated on the upper margin ; pearly ovaria round, on the top of 
the cell. 
