302 DE. C. A. MATLEY ON BRACHIOPODA [Aug. I9H, 



Order NEOTKEMATA Beecher. 



Family Aceoteetid^: Schuchert. 

 Aceothele cf. geanulata Linnarsson. (PI. XXVI, figs. 9 a & 9 b.) 



1876. Acrothele granulata Linnarsson, op. jam tit. Bihang K. Svensk. Veteusk.- 

 Akad. Handl. vol. iii, No. 12, p. 24 & pi. iv, fig. 51 (and 52?). 



1877 & 1883. Non A. granulata Swanston, App. to Proc. Belfast Nat. Field- 

 Club ('Silurian Rocks of Co. Down'), pi. vii, fig. 20; and Davidson, 

 ' Monogr. Brit. Foss. Brach.' (Pal. Soc.) vol. v, p. 214 & pi. xvi, figs. 29-30. 



1908. Acrothele (Bedlichella) granulata, Walcott, Smithsonian Misc. Coll. 

 vol. liii, No. 1810, pp. 89-90. 



The specimen figured [682] shows a partly-exfoliated fragment 

 of the posterior portion of the pedicle-valve. The outermost layer 

 where preserved shows under a strong lens a minute granulation, 

 which at a little distance from the margin is arranged in wavy and 

 irregular lines that cross the corrugations of growth at a very acute 

 but variable angle. Close to the margin these wavy lines become 

 more nearly parallel to the concentric lines of growth. The inner 

 layers are smooth, and are pierced in the neighbourhood of the apex 

 by the pedicle-tube. The valve when complete would be about 

 6^ millimetres wide, this being also the width of another (complete) 

 valve from the same locality. Several more fragments showing the 

 beautiful ornamentation of this species have also been obtained. 



The specimens, though agreeing generally with Linnarsson's type 

 in shape, size, and granulated character of the ornamentation, differ 

 from the Swedish form in having the apex less excentric. In this 

 respect they approach the closely-allied A. coriacea Linnarsson, 

 of the Paradoxides-forchliammeriZoTie. A. granulata is found in 

 Sweden in the P.-olandicus Beds, and in Warwickshire in the Lower 

 Stockingford Beds (Purley Shales) near Nuneaton. 1 



Locality and horizon. — The upper section on the Shoot- 

 Rough Road, Comley; from the band of the Shoot-Kough-Eoad 

 Flags which yields Acrotreta aff. socialis. A fragmentary specimen 

 [1116], showing similar granulated ornamentation, was obtained 

 from the same flags of the lower section, in association with 

 Billingsella Undstroemi, var. salojoiensis. 



Aceoteeta (Linnaessonia) sagittalis Salter. (PI. XXVI, figs. 10 a 

 &106.) 



1866. Obolella sagittalis and Discina labiosa Salter MS. Rep. Brit. Assoc. 



1865 (Birmingham) p. 285. 

 1868 & 1871. Obolella sagittalis Davidson, Geol. Mag. vol. v, p. 309 & pi. xv, 



figs. 17-24 ; ' Monogr.' Brit, Foss. Brach.' (Pal. Soc.) vol. iii, p. 339 &]pl. 1, 



figs. 1-14. 

 For further references see C. D. Walcott, Proc. U. S. Nat. Mus. No. 1299 ; 



vol. xxv (1903) p. 594. 



Three examples of this species have been found in the lower section 



1 C. Lapworth & others, ' Greology of the Birmingham District 1 Proc. Geol. 

 Assoc, vol. xv (1898-99) p. 346. 



