PLATE XXXIV— continued. 



Figs. 



9 a — c . — Gladiograptus Geinitzianus, var. angvstidens, Elles and Wood, nov. (Page 338.) 



9 a. Long characteristic specimen. North end Falbogue Bay, W. side Meikle Boss, 



Kircudbright Bay. Kiccarton Beds. G-eological Survey of Scotland, Edinburgh. 

 9 b. Distal fragment. Swindale, Lake District. Browgill Beds. Fearnsides' Collection. 

 9 c. Proximal fragment. Ibid. 



10 d—f. — Gladiograptus perlatus (Nicholson). (Page 338.) 



10 a. Type specimen. Mosedale in Long Sleddale, Lake District. Stockdale Shales. British 



Museum (Natural History). 

 10 b. Specimen showing "floors" of thecae iu proximal region. Cramalt, Meggat Water. 



Birkhill Shales (zone of Monog. Sedgwicki). Lapworth's Collection. 

 10 c. Specimen showing reticula throughout. Ibid. 

 10 d. Well-preserved specimen showing thecal floors and zig-zag septal strand. Coalpit 



Bay, Donaghadee. Birkhill Shales (zone of Monog. gregarius). Belfast Natural 



History Museum. 

 10 e. Small specimen on same slab as 10 b. 

 10 /. Wide fragment, possibly referable to this species. Carrifran. Birkhill Shales ? 



Lapworth's Collection. 



11. Gladiograptus perlatus, var. Daironi (Lapworth). (Page 340.) 



Type specimen, figured Lapworth, " Grapt. Co. Down," ' Proc. Belfast Nat. Field Club,' 

 pi. vi, fig. 30. Craigmichan. Birkhill Shales. Lapworth's Collection. 



12 a — c. — Plegmatograptus obesus (Lapworth). (Page 342.) 



12 a. Typical specimen, bi-profile view, showing reticula, etc. Elwand Water, Melrose. 



Gala Beds. Lapworth's Collection. 

 12 b. Type specimen, figured Lapworth, 'Cat. West. Scott. Foss.,' pi. iii, fig. 61. Ibid. 



12 c. Specimen, scalariform view. Ibid. 



13 a, b. — Plegmatograptus obesus, cfr. var. macilentus (Tornquist). (Page 343.) 



13 a. Incomplete fragment, showing wide meshed reticula. Swindale Beck, Knock, Lake 



District. Browgill Beds (zone of Monog. crispus). Sedgwick Museum. 



13 b. Fragment, showing lacinia. Swindale Beck, Knock. Browgill Beds (zone of Monog. 



crispus). Feaimsides' Collection. 



14 a — d. — Plegmatograptus nebula, Elles and Wood, nov. (Page 340.) 



14 a. Profile view, showing lacinia and virgella. Morrach Bay, Portpatrick. Hartfell Shales 



(zone of Dicranog. Clingani ?). Geological Survey of Scotland, Edinburgh. 

 14 b. On same slab as 14 a, but lying at right angles, sub-scalariform view. 

 14 e. Profile view of small broad specimen, showing lacinia. Ibid. 



14 d. Very wide specimen, doubtfully referable to this species. Wood of Cree, Newton 



Stewart. Hartfell Shales (zone of Dicranog. Cliugani). Geological Survey of 

 Scotland, Edinburgh. 



15 a — d. — Gothograptus nassa (Holm). (Page 343.) 



15 a. Specimen in low relief, showing" lappets." Elton Lane, near Ludlow. Lower Ludlow 



Shales. Wood's Collection. 

 15 b. Small specimen, showing proximal end with long virgella. Cefn-Gwyn, 1 mile E. of 



Eglwys Bach, East side of Conway Valley. Denbighshire Flags. Elles' Collection. 

 15 c. Broad distal fragment. Ibid. 



15 d. Complete specimen. Ibid. 



16 a — c. — Gothograptus spinnsus (Wood). (Page 345.) 



16 a. Type specimen, figured Wood, ' Quart. Journ. Geol. Soc.,' 1900, vol. lvi, pi. xxv, fig. 29 a. 



Vicarage Road, Builth. Lower Ludlow Shales. Wood's Collection. 

 16 b. Longer, but less complete specimen. Ibid. 

 16 c. Two specimens in juxtaposition showing effect of chavage. On same slab as fig. 16 a. 



