CORALS FROM THE SILURIAN FORMATION. 263 



3. Alveolites repens. Tab. LXII, figs. 1,1a. 



Millepora repens, Foufft, Amsen. Acad., vol. i, p. 99, tab. iv, fig. 25, 1749. 



— kamis, &c, Ibid., p. 98, tab. iv, fig. 14. 



— cervicornis? Wahlenberg, Nov. Acta Soc. Upsal., vol. viii, p. 100, 1820. 

 Calamopora fibrosa, var. Ramis gracilibus, Goldfuss, Petref. Germ., vol. i, p- 82, 



tab. xxviii, fig. 4, 1826. 

 Poctllopora approximata? Eichwctld, Zool. Spec, vol. i, p. 182, 1829. 

 Millepora Burtiniana? Morren, Descr. Cor. Belg., p. 25, tab. vii, figs. 1 — 4, 1832. 



— repens, Hisinger, Letb. Suec, p. 102, tab. xxix, fig. 5, 1837. 



— ramosa, Ibid., p. 103, tab. xxix, fig. 6. (It is a worn specimen.) 



— repens? Lonsdale, in Murcbison, Silur. Syst., p. 680, pi. xv, fig. 30 (excl., 



fig. 30a), 1830. 

 Ch/Etetes repens, HOrbigny, Prodr. de Pale'ont., vol. i, p. 49, 1850. 

 Alveolites repens, Milne Edwards and Jules Haime, Pol. Foss. des Terr. Palaeoz. (Arch. 



du Mns., vol. v), p. 258, 1851. 

 Cladopora seriata, J. Hall, Paleont. of New York, vol. ii, p, 137, pi. xxxviii, fig. I, 1852. 



Corallum ramose ; its branches slender (in general not more than two lines in diameter) 

 and frequently coalescent. Calices rather closely set, somewhat broader than high ; their 

 exterior margin presenting a medial fissure, on each side of which is a small denticulation 

 of unequal size. Breadth of the calice about one fifth of a line. 



From the upper Silurian rocks of Dudley and Wenlock. Sir R. Murchison has also 

 found it at Lincoln Hill, Coalbrook Dale, Benthall Edge, Hurst Hill, and Sedgley. It is 

 also met with in Gothland ; and in North America, where Mr. Hall has recently found it 

 at Lockport. 



Specimens in the Collections of Mr. Fletcher, of the Paris Museum, &c. 



Alveolites vermicularis 1 much resembles this species, but its branches are much thicker, 

 and the angle formed by the bifurcation of its branches is much more open ; the outer 

 margin of the calices is also more prominent than in A. repens. 



4. Alveolites? seriatoporoldes. Tab. LXII, figs. 2, 2a. 



Millepora ramis, &c, Foitgt, Arasen. Acad., vol. i, p. 98, tab. iv, fig. 15, 1849. 

 Milleporites repens, Wahlenberg, Nov. Acta Soc. Upsal., vol. viii, p. 100, 1821. (Not 



of Fougt.) 

 Millepora repens (pars), Lonsdale, in Murchison, Silur. Syst., pi. xv, fig. 30a, 1839. 

 Alveolites ? seriatopora, Milne Edwards and Jules Haime, Pol. Foss. des Terr. Palaeoz. 



(Arch, du Mus., vol. v), p. 260, 1851. 

 Cladopora mdltipora, J. Hall, Paleont. of New York, vol. ii, p. 140, pi. xxxix, figs, la, 



lb, Ic, Id (cset. excl.?), 1852. 



1 See tab. xlviii, fig. 5. 



