130 
Hah. On stones and shells from Eddystone Lighthouse 
to the Lizard and Land’s-end, common. 
This elegant and beautiful species varies in height from 
one to six inches, and is readily recognized from having no 
British species like it. It is arborescent and dichotomously 
branched ; the branches are cylindrical and contracted a * 
their terminations, and two ramifications arise from each 
joint. The cells are numerous, rhomboidal in shape, pla*?’ 
quincuncially arranged on all parts of the branches. It 13 
rooted by tubular fibres, and the branches are erecto-patenb 
and from the contracted terminations of the internodes being 
said to resemble sausages it derives its generic name F° r ' 
cimia. A good deal of difference occurs in the size of tb 0 
polypidom, and the shape and distribution of the cell*! ,n 
different specimens. In some now before me, the branched 
are three fourths of an inch in length and very stout, abo ot 
a line in transverse diameter ; in others the branches ar ® 
about one fourth of an inch long and about as stout as a ° 
ordinary sewing needle, and some are fusiform and others a rfl 
club-shaped. The cells also are liable to considerably 
variations, not only in different specimens, but in differeO 
parts of tlie same. Thus those cells at the inferior port* 01 ? 
of the branches are quadrangular most commonly, while a 
the upper parts the superior angle is expanded into an arC , ! 
and hence resembles the cells of F lustra foliacea. It won' 
almost seem as if there were two species confounded uniE 
this name; but although they cl i Her so much in size I h aV ® 
been unable to discover any specific distinctions bet* e . e , 
them. The cells can offer no guide iu determining this p ol ° 
as they vary so much in the same specimen. This is a 
elegant species both as it regards its arborescent form, 
the delicately embossed appearance of its branches. 
RETEPORA. Larnark. 
Generic Character: Coral foliaceous, stony, fragile, nette**’ 
cells opening one way, on the upper or inner side, sh° 
and not prominent. Polypes ascidian. 
NETTED CORAL. R. Reticulata. Polypidom lattice^' 
wavy and convolute, the upper surface warty and per° 
Millepora retepora, Borlase’s Cornwall, p. 240, pi* 
fig. 8. Millepora reticulata, Ellis and Solander’s 
p. 138. Retepora reticulata, Fleming’s Brit. An., P* " 
Johnston’s Brit. Zoopb., p. 296. 
Hub. Two leagues south-west of Gillstone, Scilly> 
W. Borlase. , ^ 
Of this species, I have been unable to procure a C 
specimen. Borlase found it at Scilly and I have speciH' 
