170 WELLBURN : FISH FAUNA OF YORKSHIRE COAL MEASURES. 
Genus : Cheirodus McCoy, 1848. 
Sp. C. granulosus (Young, 1866). 
Fragmentary remains. 
Very rare, distribution very limited. 
"Sp. C. striatus ? (Handcock and Atthey, 1872). 
Some scales from the Better Bed Coal shale show the charac- 
ters of this fish. They are ornamented with vertical striae, and 
the articular peg is strong and broad, extending nearly the whole 
width of the scale. 
Very rare, distribution ver}^ limited. 
Genus : Platysomus Agassiz, 1835. 
Sp. P. Fosteri Handcock and Atthey, 1872. 
In the author's collection are two very fine specimens of this 
fish from Tingley. One shows the head and the body — with the 
exception of a small portion of the ventral surface — to the com- 
mencement of the caudal fin. 
Not common, distribution limited. 
8p. P. parvulus Williamson, 1849. 
Fragmentary remains. 
Rare, distribution limited. 
8p. P. tenuistriatus Traquair ? 1879. 
A group of scales from the Barnsley Thick Bed Coal shale 
appears to show the characters of this species ; they are orna- 
mented with very fine vertical striae, and the scales are high and 
naiTOw. 
Rare, distribution very limited. 
8p. P. sp. nov? 
The scales are ornamented with widely-spaced, irregular, 
branching vertical striae. Rare, distribution very limited. 
Note. — It is the intention of the author to describe the new 
species in detail later. 
I cannot conclude without expressing my warmest thanks to 
the following gentlemen for their great and kindly help, viz, : — 
Dr. R. H. Traquair, F.R.S., Dr. Smith Woodward, F.L.S., John 
Ward, Esq., F.G.S., and Messrs. J. W. Bond, of Leeds, and W. 
Hemingway, of Barnsley. 
