THE ; 
GEOLOGICAL MAGAZINE. 
NEW SERIES. DECADE III. VOL. VI. 
No. X.—OCTOBER, 1889. 
Oi Gam ASE,) ANE eG aaa. 
——_—___ 
T.—On tur RELATIONS BETWEEN THE GENERA Syrive@ozires, Hinde, 
AND Rorvert4, Epwarps anp HaimE, AND ON THE GENUS 
Cati4pord, SCHLUTER. 
By H. Atteyne Nicuotson, M.D., D.Sc., F.G.S., 
Regius Professor of Natural History in the University of Aberdeen. 
N a recent publication (‘ Anthozoen des rheinischen Mittel-devon,” 
1889) Professor Schliiter has put forward the conclusion that 
the genus Syringolites, Hinde, is identical with the much older genus 
Roemeria, Edwards & Haime, the former name thus becoming a 
mere synonym. From this conclusion I feel obliged to dissent, and 
I propose to show in the following brief communication that Roemeria 
and Syringolites are distinguished by important morphological 
characters, and that the latter is fully entitled to generic rank. 
The genus Syringolites was founded by Dr. Hinde (Gzon. Mac. 
Dee. II. Vol. VI. p. 244, 1879) for the reception of a beautiful and 
interesting coral from the Niagara Limestone of Canada, to which 
the name of S. Huronensis was given by its describer. The same 
species has subsequently been recognized as occurring in the Wenlock 
Limestone of Gotland. The corallum in S. Huronensis (Fig. 1) 
is composite and has the form of a flattened expansion, furnished 
with a basal epitheca, and closely similar in general aspect to 
specimens of the massive forms of Favosites, such as Ff’. Gothlandica. 
The corallites resemble those of Favosites proper in being prismatic, 
Fic. 1.—a, A fragment of a colony of Syringolites Huronensis, Hinde, of the 
natural size; B, A single calice of the same, enlarged eight times, showing the 
central tube, and radiating lines of septal tubercles; c, Part of a corallite of 
the same, split open, and enlarged six times, showing the composition of the 
central tube out of invaginated tabule; p, Part of a corallite of the same, 
viewed from the exterior and enlarged six times, showing the mural pores. 
Niagara Limestone, Manitoulin Island, Ontario. 
DECADE III.—VOL. VI.—NO. X. 28 
