VINE : CARBONIFEROUS POLYZOA. 
335 
inch in length."* Another locality besides that of Hurst I have 
been able to add to the list. 
Localities : — Hurst, Shale ; Belstonburn, Hainnyres. 
6. Glauconome retrojlexa. Young & Young. Proceedings of 
Nat. Hist. Soc., Glasgow, March, 1875. 
In their remarks on this species the Messrs. Young say : — 
" The backward flexure of short branches is the most distinctive 
character . . . . ; the deeply burried appearance of the cells being 
second in importance."! Both these characters are shown in the 
Yorkshire specimens ; but from their bulky appearance some of 
the specimens approach nearer to the G. robusta, Young & Young, 
of the upper Limestone series of Carluke. In giving the descrip- 
tion of the latter species the authors say : — " From G. retrojlexa 
it is distinguished by its stouter branches, the wider position of 
the tubercles on the keel, and the more numerous cells in propor- 
tion to the branchlets."J But for this last feature it would be 
hard to separate them. 
Localities : — Hurst, Shales ; Richmond. Limestone. 
The Fenestella of the Shales are represented only by a few 
fragments, but these are very characteristic. The fragments of 
F. nodulosa, Phillips, of the type Actinostoma, Young & Young, 
and F. polyporata, Phillips, are identical with the Scotch species 
of the same type. The F. plebeia, McCoy, also corresponds with 
fragments found in the Scotch series ; but the F. tuberculo-carinata, 
Eth., Jun., is wholly obscured by a peculiar coral growth. A 
very similar, or I might say, the same coral growth incrusted 
the same species of Fenestella in the district of Gare, Scotland, 
and I have not the least doubt that this incrustation is the 
Hemitrypa of authors, and in all probability is the H. oculata of 
Phillips. The F. nodulosa preserved in masses on the Limestone 
and shells, found in smaller fragments in the Shale, are remarkably 
fine ; and the Palozocoryne radiatum and scoticum, of Duncan and 
* I can bear witness to its rarity in these Shales. 
+ Proceedings, work cited, 1875. 
$ Proceeding Nat. Hist. Soc, Glasgow, 1877- 
