546 
ACTIN0PTERYG1I. 
Platysomus forsteri, Hancock & Atthey. 
1872. Platysomus forsteri, Hancock & Atthey, Ann. Hag. Nat. Hist. 
[4] yoI. ix. p. 254, pi. xvii. tig. 3 (reprinted in Nat. Hist. Trans. 
Northumh. & Durham, vol. iv. p. 413, pi. xv. fig. 3). 
1879. Platysomus forsteri , R. H. Traquair, Trans. Roy. Soc. Edinb. 
vol. xxix. p. 369, pi. vi. fig. 10. 
Type. Imperfect fish ; Newcastle-upon-Tyne Museum. 
A species probably equalling the type in size; [form and propor¬ 
tions of head and trunk unknown]. Striations of scales fine, more 
or less undulating, usually somewhat oblique to the anterior border 
even in those of the flank, and tending to become abruptly inter¬ 
calated ; peg-and-socket articulation of principal scales relatively 
large and broad. 
Tor « m. Log. Coal-Measures: Yorkshire, Northumberland, and 
Lanarkshire. 
P. 1185. Scattered remains of a typical fish: Middle Coal-Mea¬ 
sures, Tingley, Yorkshire. 
Presented by the Earl of Enniskillen , 1882. 
P. 3500. Vertically crushed head and scales ; Carluke, Lanarkshire. 
Enniskillen Coll. 
P. 3501. Group of scales ; Carluke. Enniskillen Coll. 
37322. Imperfect head and abdominal region, with pelvic fins, 
probably of this species ; Airdrie, Lanarkshire. 
Purchased , 1863. 
Platysomus parvulus, Williamson. 
1844. Platysomus par cuius, L. Agassiz, Poiss. Foss. vol. ii. pt. i. p. 303 
(name only). 
1849. Platysomus parvulus , W. C. Williamson, Phil. Trans, p. 449, 
pi. xli. figs. 12-14. 
1866. Platysomus parvulus, J. Young, Quart. Journ. Geol. Soc. vol. 
xxii. p. 303, pi. xxi. fig. 2. 
1875. Platysomus parvulus, J. Ward, [Proc.] N. Staffs. Nat. Field 
Club, p. 235. 
1879. Platysomus parvulus, R. H. Traquair, Trans. Roy. Soc. Edinb. 
vol. xxix. p. 369, pi. vi. figs. 3-9, 11. 
1890. Platysomus parvulus, J. Ward, Trans. N. Staffs. Inst. Mining 
Engin. vol. x. p. 180, pi. viii. figs. 1-4. 
1890. Platysomus parvulus, R. H. Traquair, Proc. Roy. Soc. Edinb. 
vol. xvii. p. 392. 
Type. Scales; unknown. 
