TJte Lower Devonian Fauna of Torquay. 303 



12. Oiir general impression is that a very welcome element of 

 simplicity has been at last introduced into the tangle of Highland 

 geology, and that the conclusions reached must in the main hold 

 good. 



Report B. 

 By Professor L. W. Collet, of Geneva. 



I was already impressed by the tectonic features of Mr. Bailey's 

 maps before I saw the field evidence. When I visited the ground it 

 was with companions (see above) who were able to control the 

 stratigraphical points, and I feel that there can be no doubt of the 

 reality of the Beinn Udlaidh, Ballachulish, and Ben Lai recumbent 

 folds, and of their resemblance — as pointed out by my colleague, 

 Professor Argand, on reading Mr. Bailey's papers — with those of 

 the Alps. 



It seems to me a capital point for the future that a connexion 

 has been obtained between the Ben Lui and Ben Doirean districts 

 on the basis of a culmination of pitch in the neighbourhood of Ben 

 Udlaidh. A similar change of pitch allowed Dr. Staub to follow 

 the recumbent folds of the Pennine Alps far beyond the region where 

 they had been discovered by Professor Argand. It is not impossible 

 that the Loch Awe Nappe will reappear in the Eastern Highlands. 



Mr. Bailey's paper seems to me to be a great forward step, not only 

 for Scotch geology, but also for geological science. 



Notes on the Fauna of the Lower Devonian Beds of 



Torquay. 



By F. R. CowPER Rekd, Sc.D., F.G.S. 



(Concluded from p. 275.) 

 Tellinojosis devonica sp. nov. (Text-figure.) 



Definition.— Shell large, elliptical, subquadrate ; valves 

 moderately convex ; inferior margin very slightly curved, almost 

 straight ; posterior end well rounded above, truncated below 

 and straight, meeting inferior margin at rather more than a right- 

 angle ; cardinal margin very slightly arched, nearly straight, but 

 passing gradually into posterior margin ; anterior end rounded. 

 Beak large, rounded, prominent, subcentral, elevated above hinge- 

 line, incurved, not directed forwards. Umbonal ridge narj-ow, 

 straight, running obliquely backwards to posterior lower angle of 

 valve and causing a slight angulation of the surface. Shell 

 ornamented with regular equidistant sharp concentric lamellose 

 striae about 30-40 in number, rather suddenly bent at an obtuse 

 angle on crossing the umbonal ridge. 



Dimensions. — Length, c. 65 mm. Height, c. 42 mm. 



Horizon. — Meadfoot Beds (bluish slate). 



Localiti/. — Kilmorie (S. 76). 



Remarks. — A single right valve, of which the anterior margin is 

 somewhat broken, is the sole mateiial in which the above diagnosis 



