BRITISH SILURIAN BRACHIOPODA. 205 



from the Drift of the Midland Counties, and it is somewhat remarkable that no 

 example of Lingula Hawkei, Lingula ? Salteri, or Dinobolus Brimonti, which occur so 

 plentifully with L. Lesueuri in the Budleigh-Salterton and Brittany localities, should 

 have hitherto turned up in the Moseley or other Birmingham Drift localities. Along with 

 the Lingula Lesueuri pebbles at Moseley and elsewhere Mr, W. Harrison found sand- 

 stone and quartzite pebbles of the age of the Caradoc or " Gres de May " with Orthis 

 Budleighensis in great abundance, and in company with Orthis Falpyana, 0. elegantula, ? 

 0. unguis, 0. calligramma, and Leptana sericea. A few fragments also of Middle- 

 Llandovery rock with Stricklandinia lirata have been collected ; also Lower-Devonian 

 pebbles, with Spirifer Verneuili, Bh. Daleidensis, B. Valpgana, B. elliptica, B. Thebaulti, 

 Orthis ? laticosta ?, 0. Monnieri, Strophomena Edgelliana, Stroph. crenistria, and one or 

 two other species which owing to their bad state of preservation I was unable to 

 determine. 



No rock in situ has, however, been hitherto discovered in Great Britain containing 

 Lingula Lesueuri. 



Mr. Harrison remarks that " it seems perfectly clear that the quartzite pebbles which 

 occur so abundantly in the Drift of the Midland Counties were derived from the pebble- 

 bed or conglomerate which forms the middle member of the Bunter Sandstone or Lower 

 Trias." 



I have carefully examined and described the Brachiopoda from the Gres Armoricain of 

 Brittany. It contains four species, viz. Lingula Lesueuri, L. Hawkei, L.? Salteri, 

 and Dinobolus Brimonti. In the " Gres Armoricain " of Bagnoles, Department de 

 rOrne, I found Lingula Lesueuri, L. Hawkei^ L. Salteri (very large and abundant), 

 and Dinobolus Brimonti (rare). In the same rock and formation in the Department de 

 la Sarthe are Lingula Lesueuri (small), L. crunmia (abundant), and L. Criei, Dav. 

 (very abundant) ; but in the Department de la Sarthe Mr. Guillier found no examples 

 of Lingula Haiokei nor of Dinobolus Brimonti. At Budleigh-Salterton we have Lingula 

 Jjesueuri, L. Hawkei, L. crumena, L. Salteri, and Dinobolus Brimonti ; so that the only 

 species not found in our British quartzite pebbles is the Lingula Criei. 



In a very instructive paper by the Rev. P. B. Brodie " On certain Quartzite and 

 Sandstone Fossiliferous Pebbles in the Drift of Warwickshire," published in the 

 'Quarterly Journal of the Geological Society' for August, 1881, will be found many 

 points of much interest relating to the possible source of derivation of the quartzite 

 pebbles of the Midland Counties. 



