272 BRITISH FOSSIL CORALS. 



Wenlock limestone : Much Wenlock, Dudley, Aymestry, Benthall Edge. Lincoln Hill, 

 Townhope, Little Ridge, Easthope, Malvern (Murchison). 



Middle Ludlow rocks : Aymestry, Tatter Edge near Downton-on-the-Rock Murchison). 



In Ireland, Col. Portlock mentions its existence at Desertcreat, Tyrone, and at Portrane, 

 Dublin ; and Professor M'Coy in a great number of localities in the counties of Galway, 

 Kildare, Kerry, Mayo, Tyrone, and Dublin. 



This coral is also met with in Bohemia, Sweden, Norway, Russia, and North America. 



Specimens are in the Collections of the Geological Society of London, of the Museum 

 of Practical Geology, &c. 



Mr. Hall has separated from this species some specimens, under the name of H. 

 agglomerata, K confined in the upper part of tl e Niagara limestone, in Sweden and Ogden, 

 Monroe county, and in which the reticulations are proportionally smaller ; but the numerous 

 gradations that we observed between these forms, induced us to consider them as being 

 only varieties of the same species. We must even acid that the distinction between H. 

 catenularia and II. escharoides is not as yet clearly established ; the principal difference 

 between them consisting only in the form of the reticulations, which are much more 

 regular and of more equal dimensions in R. escharoides. 



2. Halysites escharoides. Tab. LXIV, figs. 2, 2a. 



Fungite, G. W. Knorr and J. E. E. Walch, Rec. des Monum. des Catastr., vol. ii, pi. J ix, 



figs. 1, 2, 3, 1775. 

 Corallite, Ibid., vol. iii, Suppl., p. 158, pi. via, 1775. 

 Madrepora catenularia, Esper, Pflanz. (Petref.), tab. v. 

 Tubipoka catenulata? Parkinson, Org. Rem., vol. ii, pi. iii, fig. 4, 1808. 

 Catenipora escharoides, Lamarck, Hist, des An. sans Vert., vol. ii, p. 207, 1816 ; 2d edit., 



p. 322. 

 Tubiporites catenularia, Wahlenbery, Nov. Act. Soc. Scient. Upsal., vol. viii, p. 99, 1821. 

 Catenipora escharoides, Lamouroux, Exp. Meth., p. 65, 1821. 



— — Kriiger, Gesch. der Urw., vol. ii, p. 264, 1823. 



— — Lamouroux, Encycl. (Zooph.), p. 177, 1824. 



— — Goldfuss, Petref. Germ., vol. i, p. 74, pi. xxv, fig. 4, 1826. 

 Halysites Jacowickyi, Fischer, Not. sur des Tubip. Foss., p. 15, figs. 5 and 6, 1828. 

 Catenipora escharoides, Eichwald, Zool. Spec., vol. i, p. 192, 1829. 



— exilis, Ibid., p. 193, tab. ii, fig. 13. 



— reticulata, Ibid., p. 192, tab.ii, fig. 11. 



— escharoides, De Blainville, Diet. Sc. Nat. Atlas (Zooph.), pi. xl, fig. 1, 1830 ; 



Man. d'Actin., p. Ixii, fig. 1. 

 Tubipora catenulata, S. Woodward, Syn. Table of Brit. Org. Rem., p. 5, 1830. 

 Catenipora escharoides, Holl, Handb. der Petref., p. 412, 1830. 



1 Geology of New York, 4th part, No. 22, fig. 2. 



