History of British animals - University of Guam Marine Laboratory

Cellularia. ZOOPHYTA. CELLARIADjE 539OELLARIADiE.Gen. LV1L CELLULARIA.—Cells in two rows,alternate,ovate, the openings with sessile margins ; sides of thebranches denticulated.149. C. Jhstigiata.— Cells semicylindrical, slightly roundedat the top, with a blunt process at the summit on the outer sideof each.Corallina cellifera erecta, ramosissima ; tenerrima, et plumosa, Ellis,Coral. 33. t. xviii. f. 1.— Sertularia fast. Linn. Syst. 1314.— C. plumosa,Pall. El. 66—Crisia plumosa, Lamour. Cor. Flex. 143 Not uncommon,beyond low water-mark.Height several inches, dichotomously branched, upright, tufted, irregularlyjointed ; at the lower part invested with tubular radicles from the upperbranches ; the cells are rather narrow, with pearly ovaria on their upperpart.150. C. ncritina.— Cells quadrangular, lengthened, with atruncated summit, the outer angle projecting.Snail-bearing coralline, Ellis, Coral. 35. t. xix.— Sertularia neritina, Linn.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 narrow,rather diverging, and more than the half of the outer summit is free ;the pearly, helmet-shaped ovaria, opening transversely, were at one time consideredby Ellis as the young of Neritse. I possess a specimen from the collectionof the late Dr Walker, which he received from Miss Blackburne fromthe coast of Cheshire.151. C. Hookeri.— 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 roundedtop is nearly free, projecting laterally, giving the edge a remarkably jaggedoutline, and the pearly ovaria are rounded.— I observed this species, in a collectionof zoophytes obligingly presented to me by the celebrated individualto whom, as a mark of my respect and gratitude, I have inscribed it.152. C. scruposa.— Cells oval, with a projecting, lateral, truncated,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 radicles,dichotomously divided, branches rather broad ; lateral process sometimesdenticulated on the upper margin ; pearly ovaria round, on the top ofthe cell.