PLATE XIV. 

 Genus Leptograptus, Lapworth. 



TIGS. 



1 a — (j. — Leptograptus flaccidus (Hall). 



1 a. Typical form. Hartfell Spa, Moffat. Hartfell Shales (zone of 



Pleurog. linearis). Lapworth's Collection. 

 1 b. Typical form, preserved in low relief. Mount Benger Burn. 



Hartfell Shales. Geological Survey of Scotland, Edinburgh 



Museum. 

 1 c. Smaller specimen, with a slightly more irregular curvature of the 



stipes. Hartfell Spa. Hartfell Shales (zone of Dicranog. 



Clingani). Lapworth's Collection. 

 1 d. Larger specimen with typical curvature. On same slab as fig. 1 c. 

 1 e. Centribrachiate form. Hartfell Spa. Hartfell Shales. Lapworth's 



Collection. 

 1/. Ibid. 



1 g. Centribrachiate form, showing four extra branches. On same slab 



as fig. 1 e. 



2 a — c. — Leptograptus flaccidus, var. spinifer, Elles and Wood, nov. 



2 a. Typical specimen, well preserved in low relief. Hartfell Spa. 



Hartfell Shales. Lapworth's Collection. 

 2 b. Specimen with well-developed spines on the proximal thecae. 

 Ibid. 



2 c. Broader form with strongly curved stipes, doubtfully referable to 



this variety. Ibid. 



3« — c. — Leptograptus flaccidus, var. macilent-us, Lapworth, MS. 



8 a. Typical form, with somewhat rigid stipes. Hartfell Spa. Hartfell 

 Shales (zone of Pleurog. linearis). Lapworth's Collection. 



3 b. Stipes more flexed. On same slab as fig. 3 a. 



3 c. Specimen showing complete sicula. On same slab as figs. 3 a, 3 b. 



