472 WELLBURN : FISH FAUNA OF THE PEXDELSIDE LIMESTONES. 
Family Platysomid^. 
Genus Platysomus. 
The writer has in his collection a scale which he found in a lime- 
stone nodule at Whitewell, near Clitheroe, which certainly belongs 
to the above genus. The scale is high, narrow, with a well-developed 
articular peg ; in fact, in general form and characters it very closely 
resembles many of the upper and lower fiank scales of Platysomus 
fosteri Handk. and Atthey, of the Coal Measures. The sculpture 
consists of fine, regular, closely-arranged, oblique ridges. 
I cannot conclude without expressing my thanks to Dr. Wheelton 
Hind, F.G.S., and Mr. Barns, F.G.S., for having granted me the 
privilege of examining the specimens in their collection?. 
