692 



SILURIAN CORALS. 



by Schweigger and other authors, this structure is not mentioned ; it is presumed, nevertheless, 

 that the fossil here represented is a Strombodes, and that it is the S. plicatum of Goldfuss. 

 Fig. 4. is from a specimen in the collection of Mr. Bright, Brand Lodge, Malvern. 

 Formation and locality in England. Wenlock Limestone, Western slopes of the Malvern 

 Hills. 



Foreign localities and authorities. Sweden, Goldfuss; Awirs, between Colonster and the 

 Chaussee de Beaufays, Dumont. 

 Cladocora, Ehrenberg. 



Cladocora sulcata, sp. n. Lons. PI. 16 bis. f. 9, 9 a, 9 b nat. size. 



C. strongly furrowed; terminal star, rays thick; internal structure, lamellae not symmetrical. 

 On one side of the specimen is a deep cicatrice, presenting no connexion with the interior 

 structure of the stem, but appears to be the point from which a lateral branch has been detached. 

 On the other side (9 a) is a small shoot strongly united to the stem by a thick deposit of ap- 

 parently the original matter of the coral. This specimen is in Mr. Goodhall's cabinet. 

 Formation and locality. Wenlock Limestone, Benthall Edge. 



Limaria, Steininger. 



Limaria clathrata (Steininger), PI. 16 bis. f. 7, 7 a, b. — 7 nat. size, 7 a, 7 h magnified representa- 

 tions of the openings in different states of contraction and preservation 1 . 



Syn. and Ref. Millepora ramis vagis, punctis imbricatis ? Fougt, 1745, Linn. Amcen. Acad, 

 p. 202. fig. 14. 1749. 



L. clathrata, Steininger, 1831, Mem. Soc. Geol. France, t. i. p. 339. PI. XX. f. 6. 1834. 

 Formation and locality in England. Wenlock Limestone, Dudley. 

 Foreign locality and authority. JEifel, Steininger. 



In the opening or mouth of the tubes, this coral presents great diversity of aspect, due ap- 

 parently to the degree of contraction and the state of preservation. In the specimen from 

 Shropshire figured in PL 16 bis, the triangular form given by Steininger is well shown in some 

 parts ; while in others, the mouths are merely transverse lines, slightly waved and close toge- 

 ther ; the surface in both cases being more or less rough, according to its relative perfection. In 

 some portions of the same specimen the branches are confluent or anastomose, and therefore be- 

 long to the L. clathrata of Steininger; but in others they are long, round and disconnected, 

 and if found separately they might be supposed to belong to his second species, L. fruticosa. 



In some well-preserved specimens the mouth is open and triangular, the lower part projecting 

 like the raised portion of a coarse file. 

 Limaria fruticosa (Steininger), PI. 16 bis. f. 8, 8 a — 8 nat. size, 8 a mouth magnified. 

 Ref. Steininger, 1831. Mem. Soc. Geol. France, t. i. p. 339. 



Formation and localities in England. Wenlock Limestone, Wenlock, Ledbury; Lincoln 



Hill and Colebrook Dale, Dudley, Nash Scar, Presteign, Abberley Hills. 

 Foreign locality and authority. Eifel, Steininger. 

 Turbinolopsis, Lamouroux. 



Turbinolopsis bina, sp. n. Lons., PI. 16 bis. f. 5, 5 a nat. size and vertical lamella? magnified. 



T. turbinated : external cast, perpendicular striae crossed by transverse lines more or less 

 distinct ; internal cast, lamellae disposed in pairs connected irregularly by transverse distant 

 processes, most numerous towards the base of the cast ; lamellae of each pair also united by 

 close-set processes, thicker and more prominent than the other set. 



Formations and localities. Ludlow Rocks and Aymestry Limestone, Bringivood Chase 



