PLATE XXXII— continued. 



Figs. 



8 a— e. — Petalogra/ptus folium (Hisiuger) — continued. 



8 c. Narrower specimen. Ibid. 



8 d. Fragment of narrower specimen. Branch Linn, Dobb's Linn. Birkhill Shales (band 

 with P. folium). Elles' Collection. 



8 e. Fragment of proximal end. Ibid. 



9 a— d. — Cephalograptus tubulariformis (Nicholson). (Page 287.) 



9 a. Typical specimen, reverse aspect, figured ? Nicholson, ' Geol. Mag.,' 1807, pi. vii, 



fig. 12, and Elles, as Cephalog. petalum, ' Quart. Journ. Geol. Soc.,' 1897, vol. bii, 



pi. xiii, fig. 8. Frenchland Burn, near Moffat. Birkhill Shales. British 



Museum (Natural History), S. Kensington. 

 9 b. Proximal end, reverse aspect, figured, Elles, ibid., fig. 7. Duffkinnell Burn, near 



Wamphray. Birkhill Shales. British Museum (Natural History), S. Kensington. 

 9 c. Long specimen. Belcraig Burn, near Moffat. Birkhill Shales (zone of Cephalog. 



cometa). Elles' Collection. 

 9 d. Typical specimen incomplete, figured Elles, as Cephalog. petalum, ' Quart. Journ. 



Geol. Soc.,' 1897, vol. liii, pi. xiii, fig. 6. Duffkinnell Burn, near Wamphray. 



Birkhill Shales. British Museum (Natural History), S. Kensington. 



10 a — d. — Cephalograptus cometa (Geinitz). (Page 285.) 



10 a. Typical specimen partly in relief. Parv's Mountain, Anglesea. Llandovery. G. J. 



Williams' Collection. 

 10 b. Very long specimen. Dobb's Linn. Birkhill Shales (zone of Cephalog. cometa). 



Lapworth's Collection. 

 10 c. Well-preserved, very typical specimen. Dobb's Linn. Birkhill Shales. Geological 



Survey of Scotland, Edinburgh. 



10 d. Distal fragment, showing virgula, figured Elles, ' Quart. Journ. Geol. Soc.,' 1897, 



vol. liii, pi. xiii, fig. 10. Duffkinnell Burn, near Wamphray. British Museum 

 (Natural History), S. Kensington. 



11 a — d. — Cephalograptus (?) acuminatus (Nicholson). (Page 289.) 



11a. Typical specimen. Dobb's Linn. Birkhill Shales (zone of Cephalog. (?) acuminatus). 



Lapworth's Collection. 

 116. Smaller specimen, straighter. Duffkinnell Burn, near Wamphray. Birkhill Shales. 



Lapworth's Collection. 



11 c. Small specimen. Dobb's Linn. Birkhill Shales. Lapworth's Collection. 



11 d. Longer straight specimen. Dobb's Linn. Birkhill Shales (zone of Cephalog. (?) 



acuminatus). Sedgwick Museum. 



12 a — d. — Cryptograptus tricornis (Carruthers). (Page 296.) 



12 a. Long typical specimen, poorly preserved. The Cornice, Hartfell. Hartfell Shales. 



Lapworth's Collection. 

 12 b. Ibid. 

 12 c. Smaller specimen. The Cornice, Hartfell. Hartfell Shales (zone of Climacog. 



Wilsoni). Elles' Collection. 



12 d. Small specimen. Blaen-y-delyn Quarry, Fishguard. Llanvirn Beds. F. R. C. Reed's 



Collection. 



13 a — c. — Cryptograptus tricornis, var. Schaferi, Lapworth. (Page 299.) 



13 a. Typical specimen. Llandrindod Wells. Llandeilo. Lapworth's Collection. 

 13 b. Wider specimen. Pencerrig, near Builth. Llandeilo. Sedgwick Museum. 



13 c. Same locality etc., as fig. 13 a. 



14 a — e. — Cryptograptus (?) antennarius (Hall). (Page 300.) 



14 a. Typical specimen with very long basal spines. Outerside, Keswick. Skiddaw Slates. 



British Museum (Natural History), S. Kensington. 

 14 b. Smaller specimen, figured Elles, ' Quart. Journ. Geol. Soc.,' 1898, vol. liv, p. 520, 



fig. 31 a. Outerside. Skiddaw Slates. Sedgwick Museum. 

 14 c. Specimen showing additional spines, figured ibid., fig. 31 c. Ibid. 

 14 d. Specimen showing virgular tube. Ibid. 



14 e. Small specimen (young), figured Elles, ibid., fig. 31 b. Ibid. 



15 a, b. — Cryptograptus Hoplcinsoni (Nicholson). (Page 299.) 



15 a. Typical specimen, mentioned, Elles ' Quart. Journ. Geol. Soc.,' 1898, vol. liv, p. 521. 



Outerside, Keswick. Skiddaw Slates. Sedgwick Museum. 



15 b. Distal fragment. Ibid. British Museum (Natural History), S. Kensington. 



16 a — e. — Petalographis (?) pih/ylloides, Elles and Wood, nov. (Page 284.) 



16 a. Typical small specimen. Belcraig Burn. Glenkiln Shales (zone of Nemag. gracilis). 



Elles' Collection. 

 16 b. Ibid. 



16 c. Narrower specimen. Ibid. Wood's Collection. 

 16 d. Specimen showing sicula. Ibid. 

 16 e. Young specimen with sicula. Dobb's Linn. Glenkiln Shales (zone of Dicellog. 



patulosus). Elles' Collection. 



