PLATE XXXVIU— continued. 



Figs. 



6 a — (1. — Monographic argenteus, var. cygneus (Tornquist). (Page 389.) 



G a. Small specimen. Pary's Mountain, Anglesea. Llandovery Beds. 

 Sedgwick Mnseiim, 



6 h. Specimen showing characteristic form, but badly preserved. 



Ibid. 



G r. Long distal fragment. Ibid. 



G (J. Specimen distorted so as to resemble M. Ivmaiulus. Skelgill. 

 Skelgill Beds. British Museum (Natural History), S. Ken- 

 sington. 



7 (( — (1. — Movogroptus limatuhs, Tornquist. (Page 390.) 



7 a. Typical specimen. Grennan Point, N.W. of Port Logan, Wig- 



townshire. Birkhill Shales. Geological Survey of Scotland, 



Edinburgh. 

 7 h. Incomplete specimen. Skelgill. Skelgill Beds. Elles' Collection. 

 7 c. Long specimen. Dobb's Linn. Birkhill Shales (zone of M. 



convuluius). Elles' Collection. 



7 (I. Specimen much distorted, but showing long, slender proximal 



portion. Same locality as fig. 7 h. 



8 a — d. — Moiwgrajjfus coloniis (Barrande). (Page 391.) 



8 (I. Typical specimen, mainly in relief, figured Wood, Quart. Journ. 



Geol. Soc, vol. Ivi, pi. xxv, fig. 10 b. Helm Knot, Lake 



District, Coniston Flags. British Museum (Natural History), 



S. Kensington. 

 8 h. Rather narrow specimen, showing recurved proximal thecje. 



Vicarage Road, Builth. Lower Ludlow Shales. Sedgwick 



Museum. 

 8 c. Broad specimen, in low relief, figured Wood, loc. cit., fig. 10 d. 



Adferton, near Ludlow. Lower Ludlow Shales. Hopkin- 



son's Collection. 



8 d. Characteristic specimen, figured Wood, loc. cit., fig. 10 c. River 



Irfon, Builth. Lower Ludlow Shales. Wood's Collection. 



9 a — c. — Monograptus colonns (?), var. Ivdeiisis (Murchison). (Page 394.) 



9 a. Complete specimen, figured Wood, loc. cit., fig. 11. Llanfair, 



Montgomeryshire. Ludlow Beds. Dr. Humphreys' Collec- 

 tion, Llanfair. 

 9 h. Fairly complete specimen. Llanfair, Montgomeryshire. Ludlow 

 Beds. Wood's Collection. 



9 c. Narrower specimen, showing sicula. Ibid. 



10 n — c. — Moiiograptus colonus, var. compactiis, Wood. (Page 393.) 



10 a. Type specimen (somewhat broken), figured Wood, loc. cit., 



fig. 12. Elton-Evenhay Lane, near Ludlow. Lower Ludlow 



Shales. Wood's Collection. 

 10 h. Well-preserved specimen. Stormer Hall, near Leintwardine. 



Lower Ludlow Shales. Wood's Collection. 

 10 c. Small specimen. Elton-Evenhay Lane. Lower Ludlow Shales. 



Sedgwick Museum. 



