PLATE XV. 

 Leptograptus — continued. 



FIGS. 



1 a — c. — Leptograptus flaccidus, cf. var. macilentus, Lap worth, MS. 



1 a. Large, strongly curved specimen. Hartfell Spa, Moffat. Hartfell 



Shales. Lap worth's Collection. 

 1 6. Ibid. 



1 c. Straighter form with conspicuous sicula. On same slab as fig. 1 b. 



2tt — i. — Leptograptus flaccidus, var. macer, Elles and Wood, nov. 



2 a. Portion of a slab showing specimens in association. Hartfell Spa. 



Hartfell Shales. Elles' Collection. 

 2 b. Two specimens in association. Belcraig Burn. Hartfell Shales 



(zone of Pleurog. linearis). Wood's Collection. 

 2 c. More flexed form with prominent sicula. Hartfell Spa. Hartfell 



Shales. Wood's Collection. 

 2 d. Isolated stipe. On same slab as fig. 2 c. 

 2 e. Well-preserved specimen. Hartfell Spa. Hartfell Shales. Wood's 



Collection. 

 2/. Centribrachiate form. Hartfell Spa. Hartfell Shales. Lapworth's 



Collection. 

 2 g. Flexed form. Belcraig Burn. Hartfell Shales. Wood's Collection. 

 2 It. Double centribrachiate form. Hartfell Spa. Hartfell Shales. 



Wood's Collection. 



2 i. Ditto ?, or Amphigraptus ? On same slab as fig. 2 It. 



3 a — c. — Leptograptus flaccidus, var. arcuatus, Elles and Wood, nov. 



3 a. Symmetrically curved form. Hartfell Spa. Hartfell Shales. 



Lapworth's Collection. 

 3 b. Typical form Avith sigmoid curvature. On same slab as fig. 3 a. 



3 c. Ditto. On same slab as figs. 3 a and 3 b. 



4 a — d. — Leptograptus capillaris (Carruthers). 



4a. Type specimen. Figured, Carruthers, Geol. Mag., 18G8, vol. v, 

 pi. v, fig. 7 a. Hartfell Spa ? Hartfell Shales. British Museum 

 (Natural History), S. Kensington. 



4 b. Part of a slab, showing general habit of the species. Hartfell Spa, 



Hartfell Shales. Lapworth's Collection. 

 4 c. Single stipe, showing curvature. Ibid. 

 4d. Centribrachiate form. Belcraig Burn. Hartfell Shales (zone of 



Pleurog. linearis). Elles' Collection. 



