PLATE XLIII. 



MonOgraptUS— continued. 



Figs. 



1 a — d. — Monograptus uncinatus, var. orbatus, Wood. (Page 427.) 



1 a. Type specimen, figured Wood, Quart. Jouru. Geol. Soc, vol. Ivi, pi. xxv, fig. 23 a. 



Trefnant-Middletown Brook, Long Mountain. Lower Ludlow Shales. Wood's 



Collection. 

 1 b. Typical specimen, figured Wood, loc. cit. supra, fig. 23 b. Ibid. 

 1 c. Somewhat narroAver specimen, partly figured Wood, loc. cit. supra, p. 47(3, fig. 20 b, 



Wren's Nest, Dudley. Wenlock Shales. Dr. Fraser's Collection. 



1 d. Broader specimen showing sicula. Trefnant-Middletown Brook, Long Mountain. 



Lower Ludlow Shales. Sedgwick Museum. 



2 a — s. — Monograptus uncinatus, vnr. micropoma (Jaekel). (Page 428.) 



2 a. Typical specimen, figured Wood, Quart. Journ. Geol. Soc, vol. hi, pi. xxv, fig. 24 a. 



Elton -Ludlow Road. Lower Ludlow Shales. Wood's Collection. 

 2 b. Longer specimen, figured Wood, loc. cit. supra, fig. 24 B. Above Garbett's Hall, Long 



Mountain. Lower Ludlow Shales. Wood's Collection. 

 2 c. Somewhat wider specimen, showing sicula. Stormer Hall, near Leintwardine. Lower 



Ludlow Shales. Sedgwick Museum. 



3. — Monograptus irfonensis, Elles. (Page 429.) 



Type specimen, figured Elles, Quart. Journ Geol. Soc, vol. Ivi, p. 407, fig. 19. River Irfon, 

 near Builth. Wenlock Shales (zone of Cyrtog. Lundgreni). Elles' Collection. 



4 a—e. — Monograptus flexiUs, Elles. (Page 430.) 



4 a Type specimen, figured Elles, loc. cit. supra, p. 417, fig. 18. Moel Ferna, Dee Valley. 



Wenlock Shales (zone of Cyrtog. Linnarssoni). Elles' Collection. 

 4 b. Imperfect specimen, on same slab as fig. 4 a. 

 4 c. Incomplete but very long specimen, showing flexed form of polypary. Near Gill, 



Cautley, Yorkshire. Wenlock Beds (zone of Cyrtog. symmetricus) . Miss Welch's 



Collection. 

 4 d. Specimen with very long virgella. Middle Gill, Cautley. Wenlock Beds. Welch's 



Collection. 



4 e. Similar specimen. Same locality as figs. 4 a and b. 



•5 a — e. — Monograptus gemmatus (Barraude). (Page 43(5.) 



5 a. Two specimens, (?) figured Lapworth (as M. attennatus), Geol. Mag., 1876, pi. x, 



fig. 9 b. Dobb's Liun. Upper Birkhill Shales. Lapworth's Collection. 

 5 b. Small curved fragment. Dobb's Linn. Upper Birkhill Shales (baud of Cephalog. 



cometa). Wood's Collection. 

 5 c. Broken fragments, preserved in relief. Parys Mountain, Anglesea. Llandovery 



Beds. G. J. Williams' Collection, Bangor. 



5 d. Two specimens crossing each other, figured Carruthers (as M.capillaris), Geol. Mag., 



18H8, pi. v, fig. 16. Belcraig Burn', near Moffat. Upper Birkhill Shales. British 

 Museum (Natural History), South Kensington. 

 he. Some flexed fragments. Duffkiunell Burn, Warn phray. Birkhill Shales. Geological 

 Survey of Scotland. 



6 a — d. — Monograptus distans (Portlock). (Page 433.) 



6 a. Typical specimen. Pomeroy, co. Tyrone. Llandovery Beds (zone of Monog. 



Sedgwickii). Geological Survey of England and Wales. 

 6 b. Another specimen, on same slab as fig. 6 a. 

 6 c. More distal fragment, on a slab which is the reverse side of that on which figs. 6 a 



and 6 b occur. Lapworth's Collection. 



6 d. Fragmeut with more closely set thecae, but probably referable to this species. The 



Corrie, Dobb's Linn. Upper Birkhill Shales. Elles' Collection. 



7 a— e. — Monograptus acus, Lapworth MS. (Page 431.) 



7 a. Large flexed specimen. Griestou-on-Tweed. Gala Beds. Sedgwick Museum. 



7 b. Distal fragment. Meigle Quarry, S. Scotland. Gala Beds. Lapworth's Collection. 

 7 c. Proximal fragment. Cacra Bank, Tushielaw, Selkirkshire. Gala Beds. Lapworth's 

 Collection. 



