34 ———SsNatual, Hiftony, 
which thefe are formed, is of a frmerNature; it was taken out 
of the Sea, at a great Depth, near Falmouth: looks fmoother - 
and whiter than this now before us, and is without Hairs. 
“While I was at Brighthelmpone, I had an’ Opportunity 
of feeing the Animal, which belongs to thefe Cells, It is a 
Polype with 12 Tentaculi, inclofed in a {mall Tube, in the 
_ Middle of the Cell, as it is reprefented magnified, at Fig. D 1, 
in Plate XXIX. When they are difurbed, they draw them- 
{elves into their Tube or Sheath, which clofes on them ; and 
fink, together with it, into their Gell 
Plate XXV. Ne. 5. Ejebara millepora snipe Anglica. ES p. 3Te 
Bias: “  Eorica marina Imperati. 688. iS 
Engli ifb andy Millepora. _ 
Upon examining this Sea-production in the Miceieone, 
it appears to be a Collection of Sand, united by the vilcid 
Matter of fome Sea-Infeéts, and difpoled i in a flat thin Sur- 
face, full of {mall Cavities, where the Infects have been. 
Fig. e, in Plate XXV. is the natural Size of a Part of i it. 
Ne. 6. LEfchara millepora, minima, cruftacea, dilute-purpu- 
Boe eae rea, cellulis tubiformibus, ordine fere equal, oP ae oe 
SS Rhea es 
Small purple Efchara. 
“This Incruftation is compofed: of circular Rows of very 
{mall, and almoft parallel Pipes, of a femitran{parent faint 
purple Colour. It is found furrounding the Stalks of Fucus's, 
and the denticulated Corallines. 
Fig. e, N°. 3. Plate XXVII. is the natural) Appearance. | 
And 
