CORALS FROM THE SILURIAN FORMATION. 273 



Catenipora escharoides, Steininger, Mem. Soc. Geol. de France, vol. i, p. 341, 1831. 



— — Morren, Descr. Corall. Belg., p. 68, 1832. 

 Halysites escharoides, Fischer, Oryct. de Mosc., p. 164, pi. xxxviii, fig. 3, 1837. 

 Catenipoka escharoides, Hisinger, Letb. Suec., p. 94, tab. xxvi, fig. 9, 1837. 



— — Eichwald, Sil. Syst. iu Esthl., p. 199, 1840. 



— — Castelnau, Terr. Sil. de l'Amer. du Nord., p. 45, pi. xvii, fig. 3, 



18-13. 

 Halysites escharoides, Geinitz, Grundr. der Verst., p. 581, pi. xxiii a, fig. 11, 1845-46. 



— catenulata, Keyserlinc/, Reise in Petsch., p. 175, 1846. 



— escharoides, If Orbigny, Prodr. de Pal., vol. i, p. 50, 1850. 



CATENULATA, Ibid., p. 109. 



— escharoides, Milne Edwards and Jules Haime, Pol. Foss. des Terr. Palaeoz. 



(Arch, du Mus., vol. v), p. 284, 1851. 



Reticulations of the upper surface of the corallum small and polygonal ; their sides 

 in general formed by only 2 or 3 corallites. Calices elliptical, and about half a line broad 

 in the direction of the series of individuals, but much less in the other. 12 septa. Tabula 

 strong and closely set. 



Found at Benthall Edge ; in Gothland, in Groningue, Russia, and North America. 



Specimens are in the Collections of M. Bouchard-Chantereaux, the Museum of 

 Paris, &c. 



6. Genus Syringopora, (p. lxii.) 1 

 1. Syringopora bifurcata. PI. LXIV, figs. 3, 3a, 33. 



Tubiporites fascicularis ? Wahlenberg, Nov. Act. Soc. Ups., vol. viii, p. 99, 1821. (Not 



Linne.) 

 Aulopora serpens? Ibid. A young specimen. 



Syringopora reticulata, Hisinger, Leth. Suec, p. 95, tab. xxvii, fig. 2, 1837. (NotGoldf.) 

 Aulopora serpens, Ibid., p. 95, tab. xxvii, fig. 1. A young specimen? 

 Syringopora reticulata, Lonsdale, in Murchison, Silur. Syst., p. 684, pi. xv bis, fig. 10, 



1839. 



— bifurcata, Ibid., p. 685, pi. xv bis, fig. 11. 



Harmodites catenatus (pars), Geinitz, Grundr. der Verst., p. 565, 1845—46. 



— bifurcata, D' Orbigny, Prodr. de Paleont., vol. i, p. 50, 1850. 

 Syringopora bifurcata, M'Coy, Brit. Palaeoz. Foss., p. 27, 1851. 



— — Milne Edwards and Jules Haime, Pol. Foss. des Terr. Paleeoz. 



(Arch, du Mus., vol. v), p. 287, 1851. 



Corallites straight, or slightly geniculated at the places where the connecting tubes 

 arise ; separated from each other at a distance equal to once or twice their diameter. 

 Connecting tubes large, often somewhat ascendant, and placed at about two lines apart. 

 Diameter of the corallites one third or one line. 



1 Under the name of Harmodites. 



