PLATE XVI. 



Fig. 1. — Anthracomya subcentralis. From No. 6 Pit, Victoria, South Wales Coal-field. In the 

 Collection of the Cardiff Museum. (Page 109.) 



Figs. 2 and 3. — Anthracomya pumila. Same Collection. (Page 108.) 



Fig. 4. — Anthracomya subcentralis. From the roof of the Hard Mine Coal, Adderley Green, North 

 Staffordshire Coal-field. My Collection. (Page 109.) 



Figs. 5 — 9. — Anthracomya subcentralis. A series of crushed examples from the horizon of the 

 Cockshead Ironstone, Hulme Colliery, Longton. My Collection. (Page 109.) 



Fig. 10. — Anthracomya Phillipsii. The type sj>ecimen. From the Upper Coal-measures, Ardwick. 

 In the Collection of the Manchester Museum, Owens College. (Page 120.) 



Fig. 11. — Anthracomya Phillipsii. From the Bassev Mine Ironstone, Chatterley, North 

 Staffordshire. My Collection. (Page 120.) 



Figs. 12, 13, 13 a, 14. — Anthracomya Phillipsii. Complete specimens from the Knowles Iron- 

 stone. Fenton. My Collection. (Page 120.) 



Fig. 15. — Anthracomya Phillipsii. — An elongate form from the Bassey Mine Ironstone, 

 Chatterley, North Staffordshire. My Collection. (Page 120.) 



Fig. 16. — Anthracomya Phillipsii. — Like the type ; from the Bassey Mine Ironstone of Chatterley, 

 North Staffordshire. My Collection. (Page 120.) 



Figs. 17 and 19. — Anthracomya lievis, var. Scotica. Limehouse Water, West Calder ; Lower 

 Carboniferous. Collection of the Geological Survey of Scotland. (Page 123.) 



Fig. IS. — Anthracomya laevis, var. Scotica. The type figured by Mr. P. Etheridge, jun., ' Geol. 

 Mag.,' 1877, dec. 2, vol. iv, pi. xii, fig. S. Same Collection. (Page 123.) 



Fig. 20. — Anthracomya lievis, var. Scotica? Water of Leith. This specimen was labelled by 

 Mr. P. Etheridge, jun., Anthracoptera papyracea, MS., doubtless on account of the sinuated posterior 

 border. Same Collection. (Page 123.) 



Figs. 21, 22. — Anthracomya minima. Large specimens from Black Adder Water, Duns ; Lower 

 Carboniferous of Scotland. Same Collection. (Page 116.) 



Fig. 23. — Anthracomya lecvis. A specimen from the South Joggins Coal-field, Nova Scotia. My 

 Collection. (Page 123.) 



Figs. 24, 26 — 30. — Anthracomya minima. From the Middle Coal-measures of Lancashire 

 Coal-field, Prestolee, in a band of ironstone. My Collection. (Page 116.) 



Figs. 25, 31 — 34. — Anthracomya minima. From the Knowles Ironstone. Railway-cutting north 

 of Golden Hill, North Staffordshire. My Collection. (Page 116.) 



Figs. 35 — 39. — Anthracomya minima, var. carinata. From Prestolee, Middle Coal-measures, 

 Lancashire. In the Collection of C. Poeder, Esq., of Manchester. (Page 119.) 



Fig. 40. — Anthracomya purnila. Coal-measures, Merthyr Tydvil. From the Strickland Collection, 

 Woodwardian Museum. (Page 10S. ) 



Fig. 41. — Anthracomya obovata. From the roof of the Hard Mine Coal, Mossfield Colliery, 

 Longton. My Collection. (Page 110.) 



Figs. 42, 43. — Anthracomya Icevis, var. Scotica. From the Cannel Coal, Wigan. My Collectiom 

 (Page 123.) 



Figs. 44 — 48. — Anthracomya Valenciensis. From Dalmeny railway-cutting. Lower Carboni- 

 ferous of Scotland. Collection of the Geological Survey of Scotland. (Page 113.) 



Fig. 44 a. — The shell of fig. 44 viewed from above. (Page 113.) 



Fig. 49. — Anthracomya modiolaris. One of the original type specimens figured by Mr. Sovverby 

 in Professor Prestwich's ' Geology of Coalbrookdale.' In the Collection of the Natural History 

 Museum, South Kensington. (Page 95.) 



Figs. 50, 50 a. — Anthracomya modiolaris. Two views of the second type specimen figured by 

 Mr. Sowerby in the above work, a view only, as in 5 a, being given. The same Collection. (Page 95.) 



Fig. 51.— Anthracomya modiolaris. A specimen like Mr. Salter's type (PI. XIV, fig. 9), from 



Coalbrookdale. In the same Collection. (Page 95.) 



Fig. 52. — Anthracomya modiolaris. From the Middle Measures ? of the Durham Coal-field. My 

 Collection. (Page 95.) 



Fig. 53. — Anthracomya modiolaris. From the Grains Ironstone, Dudley, South Staffordshire 

 Coal-field. My Collection. (Page 95.) 



Fig. 54. — Anthracomya Adamsii? An aberrant form from the South Wales Coal-field. In the 

 Collection of the Cardiff Museum. (Page S9.) 



