262 PROCEEDINGS COTTESWOLD CLUB 1906 
Wright wrote (2 /tz., Nov. 6th, 1904), “ not knowing the 
form, I sent specimens to Dr G. J. Hinde. In a letter 
which I received from him he enclosed a tracing of a very 
similar form discovered by Robert Etheridge, junr., in the 
Carboniferous of Scotland, and named by him Archistrum 
Nicholsont. In this the hooks are similar to the Liassic 
ones, but the plates differ in being circular and not oblong 
as they are in the Liassic species. I have given it the MS. 
name of A. Zassicum, but as it is so abundant in the 
shale it may possibly have been figured and described 
already.” 
