1873.] 



JTJDD — THE SECONDARY ROCKS OF SCOTLAND. 



153 



ing these same estuarine strata as representing the lower part of 

 the Lias /3 and the whole of the Lias a of Quenstedt. That marine 

 representatives of these strata were wanting on the east coast of 

 Scotland appears to be proved by the following fact. It will be shown 

 that of almost every portion of the series of Jurassic strata seen in 

 Sutherland, fragments, often very numerous and sometimes of enor- 

 mous size, are found in the drifts of the east coast of Scotland ; but 

 among the numerous series of fossils collected from these same drifts 

 I have never yet detected a single example of the usually remarkably 

 abundant Gryphcea arcuata, Lam. (G. incurva, Sow.), nor of any of 

 its associated forms. Marine strata of this age, however, are, as will 

 be shown hereafter, remarkably well developed on the western coasts 

 of Scotland. 



Of the marine strata forming the upper part of the Lower Lias 

 very numerous fragments occur in the drifts of the east of Scotland. 

 Mr. A. Kobertson collected at Inverugie a large -series of fossils 

 from fragments of shelly limestone of this age ; and I found at Kaim, 

 to the north-west of Elgin, numerous large boulders derived from the 

 same source. These transported fragments appear to indicate that 

 in the east of Scotland there once existed beds of limestone of this 

 age, thicker and better-defined than those in the patch which has 

 escaped destruction at Dunrobin. The following fossils have been 

 collected at Kaim and Inverua-ie : — 



Fossils from transported blocks of Lower Lias (micaceous sandy lime- 

 stone) at Kaim, Elginshire. 



Ammonites caprotinus, D' Orb. 

 Cardinia hybrida, Sow., sp. 



crassiuscula, Sow., sp. 



, sp. 



Hippopodium, sp. ? 



Cypricardia, sp. 



Unicardium cardioides, Phil., sp. 



Pecten textorius, SchJoth. 



tumidus, Ziet. 



liasinus, Nyst. 



Ostrea semiplicata, Munst. 

 Gryphsea obliqua, Sow., var. 

 Bkyncbonella variabilis, Schloth. 



Fossils from boulders of Lower Lias (same rock as last) at Lnvervgie, 



Elginshire. 



Ammonites oxynotus, Quenst. 



caprotinus, B' Orb. 



Masseanus ?, I)' Orb. 



Pleurotomaria, sp. 



Natica, sp. 



Panopjva, sp. 



Pleuromya unioides, Bum., sp. 



Anatina ?, sp. 



Plioladomya ambigua, Sow., var. 



Ceromya ?, sp. 



Cardinia hybrida. Sow., sp. 



crassiuscula, Sow., sp. 



, sp. 



Hippopodium, sp. 



Unicardium cardioides, Phil., sp. 



Cypricardia, sp. 



Astarte, sp. 



Myoconcha psilonoti ?, Quenst. 



Modiola scalprum, Sow. 



Hillana, Sow. 



Mytilus, sp. 



Lima pectinoides, Sow., sp. 



punctata, Sow., sp. 



Pinna Hartmanni, Ziet. 

 Avicula sinemuriensis, P'Orb 



(Monotis) papyrea, Quenst. 



Pteroperna (Gervillia) betacalcis, 



Quenst. 

 Plicatula spinosa, Soto. 

 Pecten textorius, Schloth. 



liasinus, Nyst, 



tumidus, Ziet. 



, sp. 



Grypbsea obliqua, Sow., var. 

 Ostrea semiplicata, Munst. 



