488 
ACTIXOPTERYGII. 
1848. Elonichthys gennari, C. G. Giebel, Gaea Excurs. German, p. 161, 
pi. vi. fig. 58. 
1849. Elonichthys german', E. F. Germar, Verstein. Steinkohlengeb. 
Wettin, p. 74, pi. xxx. figs. 1-4. 
Type. Imperfect fish.; Halle University Museum. 
The type species of moderate size. Head with opercular 
apparatus occupying about one quarter of the total length ; external 
bones coarsely and irregularly marked with striations, often 
subdivided into elongated tubercles. Fin-rays very robust, obliquely 
striated. Scales relatively large, and those of the flank scarcely 
deeper than broad; none posteriorly serrated. Scale-ornament 
consisting of branched and intercalated striae, very prominent in the 
abdominal region, but feeble towards the extremity of the tail; the 
striae of each scale directed for the most part antero-posteriorly and 
divided into two unconformable areas by the diagonal extending 
from the antero-superior to the postero-inferior angle. 
Form. Sf Log. Coal-Measures : Province of Saxony. 
P. 4395. Portions of head-bones and fin-rays, with numerous 
scattered scales ; Wettin, near Halle. Enniskillen Coll. 
Closely related to this species, but somewhat smaller, is the fish 
named Elonichthys caudalis , B. H. Traquair, Ganoid Fishes Brit. 
Carb. Form. (Pal. Soc. 1877), p. 53, pi. v. figs. 1-4. The type 
specimen is preserved in the collection of John Ward, Esq., Longton, 
and was obtained from the Knowles Ironstone f Coal-Measures), 
Fenton, Forth Staffordshire. M J ■-> 
rA.$. ?4 °^^>*■**■ w 
flxs 8-?. 
Elonichthys semistriatus, Traquair. 
1873. Pyqopterus, T. P. Barkas, Coal Meas. Palseont. p. 37, fig. 130 
(P fig. 131). 
1877. Elonichthys semistriatus , 14. H. Traquair, Ganoid Fishes Brit. 
Carb. Form. (Pal. Soc.), p. 49, pi. iii. figs. 9-12, pi. iv. figs. 1-3 : 
also Quart. Journ. Geol. Soc. vol. xxxiii. p. 577. 
1889. Elonichthys semistriatus, H. Bolton, Trans. Manchester Geol. Soc. 
vol. xx. p. 215. 
1890. Elonichthys semistriatus, J. Ward, Trans. N. Staffs. Inst. Mining 
Engin. vol. x. p. 172, pi. v. fig. 4. 
Type. Middle portion of fish; collection of John Ward, Esq. 
A very large species, attaining a maximum length of not less 
than 0*55. Cranial roof-bones tubereulated, facial bones striated, 
and mandible longitudinally striated. ■ Teeth smooth and slender, 
with much incurved apices. Fin-rays longitudinally striated; fulcra 
