56 



BLANFORD \ GEOLOGY OF WESTERN SIND. 



interstratified with the uppermost Nari sandstones. At one place, 

 however, near Tandra Rahim Khan, west by north of Sehwan, the 

 outcrop of the Gaj beds, here dipping at a high angle to the westward, 

 runs nearly in a straight line across the mouth of a valley, composed of 

 a deep synclinal of the Nari group between two anticlinal ridges of 

 Khirthar limestone. As the Gaj beds do not share the synclinal curve 

 of the Nari outcrop, it is difficult to see how the two can be conformable ; 

 but an examination of the boundary between the two groups failed to 

 show any clear evidence of unconformity. There are, however, some 

 places south of Sehwan where the Gaj group overlaps the Nari beds and 

 rests upon the Khirthar limestone ; but it must be recollected that the 

 Gaj group is itself overlapped by Manchhar beds in the immediate 

 neighbourhood. 



The following is of course a very imperfect list of the animal remains 

 found in this richly fossiliferous group, only the 

 more important or common forms being noticed : — 



Palaeontology. 



Ceustacea. 



Paleeocarpilius rugifer.i 

 Typilobus, sp. 



Buccinum cautleyi. 

 B. vicaryi. 



Balanus suhlcevis. 



Gasteropoda. 



Vicarya verneuilli. 

 Turritella angulata. 



Lamellibbanchiata. 



KupTius rectus (Serpula recta, Sow). 



Corbula trigonalis. 



Yenus granosa. 



V. cancellata. 



Tapes sulvirgata. 



Cardium anomale. 



Astarte hyderabadensis. 



Bosinia pseudoargus. 



Area kurracheensis. 



Area peethensis. 

 A. larJchanaensis. 

 Pectunculus pecten. 

 Pecten subcorneus. 

 P. bouei. 

 P. favrei. 



Spondylus tellavignesi. 

 Ostrea multicostata. 



( 56 ) 



1 Stoliczka : Pal. Ind., Ser. VII, p. 8, Pis. iv, v. 



