178 TABULATE CORALS. 



from an examination of the figure given by Goldfuss, except that 

 this indicates a coral in many respects very unlike the normal 

 forms of Favosites. I am unable personally to give any fresh 

 information as to the structure or affinities of this coral ; but Mr 

 George J. Hinde, who has lately examined the original speci- 

 men in the Bonn Museum, permits me to say that in his opinion 

 the relationships of this peculiar type, so far as they can be 

 determined without actual sections, are rather with Syringopora 

 than with Favosites. The walls of the corallites are very thick, 

 and the tubes (as noted by Milne-Edwards and Haime) are 

 actually not in contact near their mouths, while there is no 

 positive evidence as to the existence of mural pores. The 

 tabulae also are simply invaginated, without being so bent down- 

 wards in the centre as to give rise to a median tube ; so 

 that, on the whole, the corallum may " be compared with that 

 of a Syringopora, in which the connecting-processes are absent 

 and the corallites are in close contact." On the other hand, 

 my friend Mr Hinde has had the great kindness to allow me 

 access to his specimens of a most remarkable Favositiform 

 coral, which he has collected in the Niagara Limestone of 

 Canada, and which in some respects agrees with the published 

 description oi Rosmeria, E. and H.; and I am further indebted 

 to him for the permission to make use here of the following 

 condensation of its characters, drawn from the MS. of a paper 

 which he is about to publish on the subject. 



Gemis Syringolites, Hinde, 1879. 

 (Fig. 27.) 



Gen. Char. — Corallum composite, forming flattened expan- 

 sions, with a basal epitheca, in general appearance resembling 

 Favosites Gothla^idica, Lam. Corallites in close contact through- 

 out, prismatic, thin-walled, with one or more vertical rows of 

 mural pores on each prismatic face. Tabulae annular, curved 

 so as to be concave upwards, and depressed centrally so as to 

 give rise to a vertical median tube, which may be continuous 



