PLATE XLVIII— continued. 



Figs. 



5 a — d. — Monograptus fimbriatus, var. si mills, Elles and Wood, var. nov. 



(Page 483.) 

 5 a. Small specimen, showing short proximal end. Dobb's Linn. 



Birkhill Shales. Lapworth's Collection. 

 5 b. Somewhat wider specimen. Ibid. 



5 c. Small specimen showing sicnla. Dobb's Linn. Birkhill Shales. 



Sedgwick Museum. 

 •5 d. Long specimen, but incomplete proximally. On same slab as 

 fig. 5 b. 



6 a — d. — Monograptus planus (Barrande). (Page 484.) 



6 a. Specimen, preserved in partial relief. Plas-bach Stream, near 



Llanbrynmair. Junction beds of the Dolgau and Nant-ys-gollen 



Shales. Wood's Collection. 

 6 b. Small specimen, showing proximal end. Dobb's Linn. Geological 



Survey of Scotland. 

 (5 c. Characteristic specimen. Hebblethwaite Gill, Lake District. 



Browgill Beds. Sedgwick Museum. 



6 d. Larger and broader specimen. Dobb's Linn. Geological Survey 



of Scotland. 



7 a — d. — Monograptus spiralis (Geinitz). (Page 475.) 



7 a. Small specimen, showing proximal thecae. Tarannon River, 



Montgomeryshire. Gelli Beds. Wood's Collection. 

 7 b. Large specimen with characteristic irregular curvature. Porta- 



ferry, Co. Down. Gala Beds. Belfast Natural Histoiw 



Museum. 

 7 c. Incomplete specimen. Thirlstane Score, near Moffat. Band of 



Bast rites maximus. Lapworth's Collection. 



7 d. Very regularly curved specimen, but probably referable to this 



species, true thecal form concealed for the most part. Nant 

 Fuches-wen, Pont Erwyd. Jones' Collection. 



8 a — c. — Monograptus proteus (Barrande). (Page 477.) 



8 a. Specimen, showing typical form of polypary. Bont Dolgadfan, 



near Llanbrynmair. Brynmair Beds. Wood's Collection. 

 8 b. Similar specimen, but with longer proximal portion. Portaferry, 

 Co. Down. Tarannon Beds. Swanston's Collection, Belfast. 



8 c. Group of distal fragments, showing form of thecae. Gelli-dywyll 



Stream, near Llanbrynmair. Brynmair Beds. Wood's 

 Collection. 



9 a, b. — Monograptus circularis, Elles and Wood, sp. nov. (Page 479.) 



9 a. Typical specimen. Plewlands Burn, Raehills. Upper Birkhill 



Shales. Geological Survey of Scotland. 

 9 b. Less well-preserved specimen. Ibid. 



