Wright — Forciminifera of South Donegal, 
181 
Fine examples of this handsome Bulimina are not nnfrequent off Killy- 
begs Harbour. It has also been found off Skye, by Mr. Robertson, and off the 
Shetlands, by Mr. Brady. 
Lagena marginata, Walker 8f Jacob. (PI. viii. figs, 4, 4a.) 
Serpula ( Lagena ) marginata , Walker & Jacob, 1784. Test. Min. p. 3, pi. 
1 , 7 . 
Examples similar to Walker & Jacob’s type, having a broad marginal keel 
of transparent shell substance, are not unfrequent round our coasts. Rare off 
Killybegs Harbour, seventeen fathoms. 
Lagena marginata var. Orbignyana, Seguenza. (PI. viii. figs, 5, 5a.) 
Fissurina Orbignyana, Seguenza, 1862, Foram, Monotal. Mess. p. 66, pi. 2, 
figs, 25, 26. 
This well-marked variety, with three keels, is abundant almost everywhere 
round our coast. It is plentiful in all the Donegal gatherings. 
Lagena costata, Williamson. 
Entosolenia costata, 1858, Rec. For. Gr. Br. p. 9, pi. 1, fig, 18 ; Wright, 
Proc. Belfast Nat. Field Club — app. 1876-7, pi. 4, figs, 11 — 14. 
I have remarked that, of all our British Lagence, this form appears to flourish 
best off the exposed parts of our coasts. I imagine this must be due to its 
strong test enabling it to thrive better in rough water than the other more 
delicately formed species. Frequent off Slieve League. 
Fragments of a long, slender, tapering, arenaceous form, consisting of a 
number of segments, and having its shell-wall frequently composed of closely- 
fitting sponge spicula, arranged side by side, are not unfrequent off Slieve 
League, as well as at other stations round our coast. It is, most probably, a 
Reophax , but as no perfect example has as yet been obtained, its place among 
the Foraminifera could not be given with any degree of certainty. 
