PLATE XXXVl— continued. 



Tigs. 

 4ia — d. — Monof/raptus hohemicits (Barrande). (Page 3G7.) 



4 a. Typical specimen, figured Wood, Quart. Journ. Geol. Soc, vol. 



Ivi, pi. XXV, fig. 27 A. River Irfon, near Builtli. Lower 



Ludlow Shales. Wood's Collection. 

 4 h. Specimen, showing sicula, figured Wood, loc. cit., fig. 27 b. 



Aberedw Hill, near Builth. Lower Ludlow Shales. Wood's 



Collection. 



4 c. Long specimen, with slightly curved distal portion. Hospital 



Road, Builth. Lower Ludlow Shales. Sedgwick Museum. 

 4(/. Similar specimen. River Irfon, near Builtli. Lower Ludlow 

 Shales. Wood's Collection. 



5 a — e. — Monograptus coucinnus, Lapworth. (Page 368.) 



ba. Two specimens crossing each other, figured Lapworth, Geol. 

 Mag., 1876, pi. xi, fig. 1 e. Dobb's Linn. Birkhill Shales. 

 Lapworth's Collection. 



5 b. Two similar specimens, one showing marked ventral curvature. 



Dobb's Linn. Birkhill Shales. Lapworth's Collection. 

 5 c. Median fragment, part in relief, part impression. Waterfall, 



Dobb's Linn. Birkhill Shales. Lapworth's Collection. 

 5 d. More proximal fragment, mainly in relief. Rheidol Gorge, 400 



yards E.S.B. of Bryn-chwith Farm, Pont Erwyd. Geological 



Survey of England and Wales. 

 5 e. More distal fragment with marked curvature. Dobb's Linn. 



Birkhill Shales. Lapworth's Collection. 

 5/. Very broad distal fragment of great length, partly in relief, 



provisionally referred to this species (the complete specimen is 



twice this length). Rheidol Gorge, 420 yards E.S.E. of Bryn- 



chwith Farm, Pont Erwyd. Rheidol Group. Geological 



Survey of England and Wales. 



