PALJEONISCJDiE. 
467 
middle of the flanks and on the caudal pedicle, but dorsally and 
ventrally in the abdominal region marked with conspicuous oblique 
striae. 
Form. Sf Log. Carboniferous Limestone Series : Midlothian and 
Lanarkshire. 
49172. Imperfect fish, with fragments of the fins; Possil, near 
Glasgow. Old Collection. 
P. 3438. Two similar specimens ; Edge Coal Series, Wallyford. 
Enniskillen Coll. 
Rhadinicbthys wardi (Ward). 
1875. Palceoniscus wardi, J. Young, Proc. Nat. Hist. Soc. Glasgow, 
vol. ii. pt. i. p. 66 (name only). 
1875. Palceoniscus wardi, J. Ward, [Proc.] N. Staffs. Nat. Field Club, 
p. 239. 
1877-78. Rhadinichthys wardii, R. II. Traquair, Quart. Journ. Geol. Soc. 
yoI. xxxiii. p. 559, and Proc. Roy. Phys. Soc. Edinb. vol. iv. p. 239. 
1890. j Rhadinichthys wardi , J. Ward, Trans. N. Staffs. Inst. Mining 
Engin. vol. x. p. 176, pi. vi. fig. 10. 
Type. Imperfect fish ; collection of J. Ward, Esq., Longton. 
A small species, attaining a length of about 0*1. Body slender ; 
head relatively large, the snout blunt, and the external bones finely 
striated. Scales of moderate size, externally ornamented with 
parallel oblique series of tuberculations, partially fused together, 
and terminating in serrations at the posterior margin. 
Form, Log. Coal-Measures : North Staffordshire. 
P. 6292. Remains of head and scales ; Deep-mine Ironstone Shale, 
Longton. Enniskillen Coll. 
Rhadinichtbys monensis (Egerton). 
1850. Palceoniscus monensis , Sir P. Egerton, Quart. Journ. Geol. Soc. 
vol. vi. p. 5, pi. i. fig. 3. 
1878. Rhadinichthys monensis, R. H. Traquair, Proc. Roy. Phys. Soc. 
Edinb. vol. iv. p. 241. 
1890. Rhadinichthys monensis, J. Ward, Trans. N. Staffs. Inst. Mining 
Engin. vol. x. p. 175. 
Type. Scales ; British Museum. 
An imperfectly known species, attaining a length of about 0*09. 
Head-bones coarsely striated. Scales of flank nearly equilateral; 
hinder border coarsely denticulated. Scale-ornament consisting 
2b 2 
