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considered as a tubipore. The other references, in illustration of this 
species, by Gmelin, appear to be' incorrect. 
Fascicular tubipore ( tubipora fascicularis, Linn.) described by Fa- 
bricius as being formed of fasciculated filiform tubes, anastomosing in 
places, at their sides : * and found in a mineral state on the shores of 
Gothland, and in the lime-stone mountains, of the size of a sparrow's quill, 
has not, I conjecture, been yet figured. Nor have I to my knowledge 
yet seen this fossil. 
Tubipora ramosa, T. pinnata, T. pennicillata, and T. flabellaris, 
have not yet been seen in a fossil state. Indeed, that minuteness of 
the parts of which they are composed, their structure, and various 
other circumstances, demonstrate the little probability there is of these 
substances being detected, after they have become a stony mass. 
Stellated tubipore, ( tubipora stellata, Linn.) is described by Adrian 
Modeerf as a fossil found in the Swedish Island, Gothland. It is formed 
by distinct tubes, combined in ranges, by many remote platforms; 
formed of horizontally disposed plates, with radiating stria on their 
surfaces, and pierced for the passage of the tubes. This fossil, from the 
description, and from the plate which is given of it by Modeer, 
appears to be fully deserving to be considered as a distinct species. 
That curious species of communication between the several parts of 
the animal, which has been already noticed in the organ-pipe coral, as 
being kept up by radiating tubuli, passing through the substance of the 
horizontally disposed plates, appearing in this species to be carried on by 
similar pipes passing either through divided plates, or on the surface of 
the plates, forming on them the radiated striae just described. 
* O. Fabr. Fn. Groenl. 429. f Act. Stockholm. 1788. § 4. No. 1. 
