210 Appendix. [No. 3, 



concentric laminae (which do exist in the striatus) have become 

 exaggerated. All stages of transition are to be observed in a mode- 

 rately large series. 



Spirifer Bajah, Strachey [Syn. S. Keilhavii Buch f J 



Paleont. of Niti, page 59. 



Fragments found at Zeawan and Barus. 



Spirifer, spec. nor. ? PI. Ill figs. 1 & la. 



Hinge-line straight and much longer than the greatest width of the 

 shell. Umbones prominent above the hinge-line ; hinge-area not 

 seen. Six or seven irregular ribs radiate from the umbo to the margin 

 in a wavy manner. Fine ornamental raised lines (coarser on the 

 larger than on the smaller valve) radiate likewise in a wavy manner. 

 Shell flat. It varies a great deal in shape and size, but is always 

 very flat, so much so that it has somewhat the appearance of such 

 shell as the Strophomena grandis of the Silurian. It may possibly be, 

 like the precedent, a variety of the S. Keilhavii, 



Found at Zeawan in Kashmir and at the Rotta Rob. 



Spiriferina octoplicata (Soiv.), var. Transversa (Verch.) 



PI. I. figs. 2, 2a, 2b, 2c, and 2d. 



Specimens like a, are not common at all ; but fragments of the 

 shell such as are represented at b, are innumerable in the brown 

 shale of Zeawan. Found also in the limestone of Kafir Kote in the 

 Rotta Roh, but it is there rare. This shell seems to vary wonderfully, 

 from the narrow forms figured by Davidson, (Journal Geological 

 Society, Vol. XVIII. PL I. figs. 11 and 14,) to the very transverse 

 variety represented here. 



Athyris sp. (Ath. subtilita. Hall), PI. II. figs. 1 and la. 



This species varies considerably, especially as to size, but is easily 

 recognized by the overlapping of the upper edge of the lines of 

 growth, so that the shell looks as if made up of several layers laid one 

 over the other, like the many capes of a coachman's cloak. 



Found at Zowoor in Kashmir, in lenticular beds where it appears to 

 be gregarious. Also in the Rotta Roh and Salt Range. 



Athyris Buddhista, Verch., n. sp. PI. II. figs. 2, 2a, and 25. 

 It has flat, expanded sides on each side of a well marked sinus of 

 the larger valve and sharp fold of the lesser. The beak terminates in 

 a point, occasionally pierced by a small foramen but generally 



