SPIRIFERIDx^]. 



Ill 



as this specific name has been generally adopted, it would not, I think, be desirable to 

 alter it now, especially as no one has made use of Sowerby's name. It is, however, 

 strange that Mr. J. de C. Sowerby, who was fully cognisant of his father's prior claims, 

 since he quotes them in his description, should, in 1839, have described the same shell 

 under the appellation of Atrypa tenuistriata, a name which has not, however, been sub- 

 sequently adopted. Mr. Salter first referred the English shell to Caiman's Atrypa 

 tumida and the shell has since been shifted from genus to genus, as will be seen by a 

 glance at our Hst of Synonyms, until it has finally been taken as the type of Prof. Hall's 

 genus Meristella. 



Position and Locality. Meristella tumida is a common shell in the Wenlock limestone 

 of Dudley, Woolhope, Benthall Edge, the Rushall Canal near Walsall, May Hill, &c. Prof. 

 Phillips and Mr. Salter mention Storridge, Ledbury, Hereford Beacon, and Eastnor Park 

 in the Malvern District, and the Wenlock limestone and Lower Ludlow of Hill End, at 

 Abberley and Callow Farm in the Abberley district. North of Canwood, Dormington 

 Wood, East of Canwood and Lindels, in the Woolhope district. West of Rock Farm, 

 Rock Farm, North of Taynton, in the May Hill district. In the Ayraestry limestone of 

 Llanbadoc and Russell's Farm, in the Wenlock limestone and shale of Cilfigan, Ty-newydd, 

 Trostrey, Bryn Craig, Craig-y-garcyd in the Usk district, and at Ty-newydd, Keeper's 

 Lodge, &c., in the Llandeilo district. In Scotland it has been found by Mr. J. Hen- 

 derson, in the Wenlock shales of the Pentland Hills. It occurs in Gothland ; also in the 

 neighbourhood of Christiania in Norway. Prof. Schmidt mentions having found it in 

 Russia ; and M. Barrande obtained it near Prague in Bohemia. 



Meristella angustifrons, M'Coy (sp.). PI. X, figs. 21 — 27. 



Hemithyris angustifrons, M'Cotj. Ann. Mag. Nat. Hist., 2nd ser., vol. viii, p. 391, 

 1851; Brit. Pal. Foss., p. 199, pi. I H, figs. 6 to 

 8, 1852. 



Terebeatula — Salter. Quart. Journ. Geol. Soc, vol. vii, pi. ix, fig. 



10, 1851. 



Rhynchonella — Morris. Cat. Brit. Foss., p. 146, 1854. 



— — Salter. ' Siluria,' 2nd edition, p. 230, Foss. 48, fig. 



2, 1859. 



Parkinson and Martyn, and might therefore have been misleading. The spiral remains in the present 

 species seem rare, as most of the shells are filled with a hard marly earth. It was found with some other 

 species in Sladacre's Quarry, on tlie right hand side of the road leading from Wych to Colwell Green, a 

 part of the Malvern Hills." I have experienced some difiiculty in ascertaining exactly the date at which 

 Sowerby's description of r. oJ^Msa was really published. The date at the commencement of vol. xi of the 

 Linnean Society's Transactions is 1818; but the part containing Sowerby's description of T. obtusa 

 has the date wanting. The paper, however, appears to have been read partly on the 6th of December, 

 1814, and partly on February ITth, 1815. 



