378 On the Fossil Fishes of the Carboniferous Limestone Series of Great Britain. 
lateral cutting-edge of C. acutus to distinguish it from any other species. The me- 
dian cone of Cladodus striatus is possessed of a sharp cutting-edge, but there can be 
ao hesitation in distinguishing between the teeth of that species and the present one. 
Formation and locality : Carboniferous Limestone, Loughgall, near Armagh. 
Ex coll. Jones collection, Geological Society’s Museum, London. 
Cladodus milleri, Agass. 
(Pl. XLIX., fig. 16.) 
Cladodus milleri—Agassiz, L. 1838. “ Poiss. Foss.,” Vol. III., p. 199, pl. 228, figs. 22, 23. 
Sphenonchus subulatus—A gassiz, MS., in collections. 
Cladodus milleri— Giebel, C. G. 1848. “ Fauna der Vorwelt,” Vol. III., pt. 3, p. 323. 
we A Pictet, F. J. 1854. “ Traité de Paléont.,” Vol. II., p. 259. 
s 55 Morris & Roberts, 1862. ‘“ Quart. Journ. Geol. Soc.,” Vol. XVIII, p. 100. 
3 . Young & Armstrong, 1871. ‘Trans. Geol. Soc., Glasgow,” Vol. III., Supt. p. 69. 
Teeth. “The teeth have a great external resemblance to Cladodus mirabilis : the 
principal cone in particular approaches very near the same form, it is cylindrical, very 
slender and appears to have been obtuse at the summit. This cone is striated ; the 
striee are much finer and more regular than C. mirabilis: the secondary cones are 
also more slender, either vertical or recurved backwards. Root is not well pre- 
served. The base of the crown is undulated. The length of the tooth equals or 
exceeds the height of the principal cone.” 
An example of C. mileri, which is broken across the tooth, is represented in 
(Pl. XLIX, fig. 16). It is 1:4 inches in length, the principal cone is 6 inch. There 
are three secondary cones on each side, the median one strongly implanted, rapidly 
tapering and acuminate. The principal cone in this specimen, terminates in a sharp 
point. This specimen differs somewhat from the description of Prof. Agassiz, the 
median cone is not so high or obtusely pointed, and the lateral cones are of more 
regular size and three instead of two im number. 
Formation and locality : Mountain Limestone, Bristol. 
Ex coll. British Museum. 
Cladodus conicus, Agass. 
Sphenonchus conicus—Agassiz, L. MSS. in British Museum. 
Cladodus 3 Agassiz, L. 1838. ‘“ Poiss. Foss.,” Vol. [II.,p. 199, pl. 226, fig. 24. 
% 3 Giebel, C. G. 1848. “ Fauna der Vorwelt,” Vol. L, pt. 3, p. 323. 
Fs Pictet F. J. 1854. “ Traité de Paléont.,” Vol. II., p. 259. 
S . Morris & Roberts, 1862. ‘“ Quart. Journ. Geol. Soc.” Vol. XVITI., p. 100. 
- 5 Young & Armstrong, 1871. “Trans. Geol. Soc., of Glasgow,” Vol. ITI., Supt., 
p. 69. 
Prof. Agassiz distinguished this tooth from the Mountain Limestone of Bristol, 
under the name of Sphenonchus conicus ; finding it should be included in the genus 
