12 CATALOGUE OF TYPES AND FIGURED SPECIMENS 



1865. Anthracomya Phillipsii, Huxley and Etheridge, Cat. Foss. Mus. Pract. 



Geol., pp. 157 and 160. 

 1870. „ ,, Jones, Geol. Mag., p. 217. 



1877. „ ,, Etheridge, jun., Geol. Mag. (2), iv., p. 243, 



pi. 12, figs. 6 and 7. 

 Types. — Two somewhat crushed specimens, the originals 

 of Etheridge's figures. 



Ardwick, Manchester. 



Upper Coal Measures. Coll. Williamson. 



Avicula (P) Kirkmanni (Brown), 1841. 



1841. Catillus Kirkmanni, Brown, Trans. Manch. Geol. Soc, i., p. 225, 

 pi. vii., fig. 66. 



Type. — An oblong-ovate shell, a quarter of an inch in 

 length ; marked by well-defined concentric lines of growth. 

 Umbones narrow and prominent. Upon a small slab of 

 shale, 12 mm. square. 



High Green Wood, Todmorden, Yorks. 



Yoredale Shales, Carboniferous. ColL Gibson. 



Avicula (.P) laevis (Brown), 1 84 1. 



1841. CaUlhis IcEvis, Brown, Trans. Manch. Geol. Soc , i., p. 226. pi. vii., 



fig. 67. 

 1849. ,, ,, Id., Foss Conch., p. 167, pi. Ixvii., fig. 22. 



Type. — An oblong-ovate shell, 18 mm. in length by 

 12 mm. in breadth. Strongly convex; surface marked by 

 concentric lines of growth. Upon the surface of a slab 

 of ironstone shale, one-and-a-quarter inches in length. 



High Green Wood, Todmorden, Yorks. 



Yoredale Shales, Carboniferous. Coll. Gibson. 



Gervillia C?) minor, Brown, 1841. 



1841. Gervillia minor, Brown, Trans. Manch. Geol. Soc, i., p. 227, pl. vii., 



fig. 70. 

 1849. ,, „ Id., Foss. Conch., p. 165, pl. xl.-^^-, fig. 31. 



Type. — An ovate left valve, narrow in the region of the 

 umbo, and marked by strong concentric folds ; hinge-line 

 long. 



